Technical instructions to Work

1. aggarwalkl@aai.aero

2. PREFACE
(List of Technical Instruction not covered in revised Works Manuals 2017).
The information contained in this e-compilation of Technical Instructions has
beenconvertedintoasearchabledocumentusingOCRsoftwaresoasto
quickly search for all instances for a keyword in all the Technical Instructions.
Hyperlinked Tableof ContentwithBookmark hasbeenalsoprovidedto
navigate and locate the content quickly.
DuringlastmanyyearslotofTechnicalCircularshavebeenissuedonvaried
subjects and these have to be followed along with the Technical
Instructions and Works Manual. An e-compilation of all the Technical
Circulars have been alsomadeasaseparatee-booksoasmake allthedata
availableonaclickof mouse, even in offlinemode.
In this compilation there are some pages which are not searchable, it is
planned to correct them in future compilation and alsoprovide a Book End
IndextoquicklylocatealltheInstructions onaspecific topic.
Itisardently hoped thatthise-compilation willbeextremely useful toallthe
AAI engineers. Suggestions and criticism from the users for improvement
would be highlyappreciated.
aggarwalkl@aai.aero
agrawalklaai@gmail.com

3. Table ofContents
Technical
Instruction
DateofIssue Description
41 26-06-09 Demurrage charges
43 15-07-09 Design of electrical panel
46 21-07-09 Procurement of Security Equipment
70 27-12-10 RESA: Provision, Maintenance and upkeep
100 20-02-14 Ultrasonic Pulse Velocity testing of concrete.
101 21-07-14 Guidelines for safetyassessment of new projects and change in
existinginfrastructure (ChangeManagement)inoperational area.
102 30-04-15 Guidelines to avoid water marks on Granite flooring in airport terminal
buildings.
105 20-02-16 Safetyissuein existing/proposed OperationalBoundarywall at Airports.
105 R 05-07-16 Safetyissuein existing/proposed OperationalBoundarywall at Airports
106 02-03-16 Provision of extra reinforcement against unexpected high winds – securing
galvalume sheet roofing by fixing additional wind ties, specialized holding clips
and angles.
107 18-05-16 Pavement section details at the junction of Runway and Taxiway for
operationalairports.
108 09-06-16 Specification of Blast cleaning for surface preparation of Structural Steel for
important structures in AAI works.
109 21-06-16 Determination of tariff(s) for aeronautical services
110 08-16 Empanelment of Material Testing laboratories in AAI.
113 10-11-16 Providing electrical safety locks for cooling towers and similar critical equipments,
hydrostatic testing of HVAC piping regarding.
114 27-10-16 Determination of Binder Content in the Bituminous Mix and Permissible
variation.
118 18-08-17 Systematic Improvement for the Scrutiny of Concrete Mix Design Report.
120 10-07-17 AddendumtoSpecificationforGranularSub-base(GSBC)&Wet Mix Macadam
(WMM) –reg.
121 19.09.2017 Use of LED Lightning in Airports.
1 01.01.2018 CompositeRateContractfor CivilandElectrical MinorCapital Works on Percentage
Rate Basis.

4. Table ofContents
Technical
Instruction
Date of Issue Description
2 06-03-18 Procedure for listing of preferred makes for use in AAI works for Civil Engg.
Items.
3 23-03-18 Empanelment of Material Testing laboratories in AAI.

5. manners AUTHORITY e|= more
Ole uemeenistnnumo)
Ne. AAllMember (Plg}r‘Tech-lnst.i'2009 26"‘ June, zoos
TECHNICAL INSTRUCTION no 41
oemuRRAGE CHAR_C;3ES
Demurrage charges are levied when there is a delay in release of
consignments lying at ports. Usually such delay occurs due to incomplete
documentationlpapers. Problem becomes more acute when the consignment is
delivered at various ports, against a single purchase order. To avoid occurrence
of such instances wherein demurrage charges were imposed on AAI, following
guidelines are issued for implementation:
1. in case of multiple ports of delivery against a single ‘purchase order‘,
separate DGFT and WPC licence should be got issued for each port for
presentation to Custom Authorities for release of consignment.
2. Concerned ED will nominate a Nodal Officer of Glvl rank, who will act as
Project-in-Charge and it will be the responsibility of Project-in-Charge to
coordinate with concerned Department for issue of required licence(s) and
concerned officer at station, where the item is consigned for. Project-in-
Charge will keep a track of each consignment right from boarding on
vessel, till its release from Custom Authorities, at the assigned port.
3. it will also be ensured by the Project-in-Charge that the original
documents are arranged through Bank where LC is opened (upon
realization of payment) and are dispatched promptly in time to the
consignee port to facilitate timely release of consignments.
T
(V. P. Agrawal)
Chairman
Distribution: As per attached list
60
60
AIRPORTS AUTHORITY OF INDIA O
Olo uemsenlptnuumo) A K
No. AAUIR/lember (Plg}r’Tech-lnst.f2009 2&1“ June, zoos
TECHNICAL rusrnucrron no 41
oemuRRAGE cl-images
Demurrage charges are levied when there is a delay in release of
consignments lying at ports. Usually such delay occurs due to incomplete
documentationipapers. Problem becomes more acute when the consignment is
delivered at various ports, against a single purchase order. To avoid occurrence
of such instances wherein demurrage charges were imposed on AAI, following
guidelines are issued for implementation:
1. in case of multiple ports of delivery against a single ‘purchase order‘,
separate DGFT and WPC licence should be got issued for each port for
presentation to Custom Authorities for release of consignment.
2. Concerned ED will nominate a Nodal Officer of Glvi rank, who will act as
Project-in~Charge and it will be the responsibility of Project-in-Charge to
coordinate with concerned Department for issue of required licence(s) and
concerned officer at station, where the item is consigned for. Project-in-
Charge will keep a track of each consignment right from boarding on
vessel, till its release from Custom Authorities, at the assigned port.
3. it will also be ensured by the Project-in-Charge that the original
documents are arranged through Bank where LC is opened (upon
realization of payment) and are dispatched promptly in time to the
consignee port to facilitate timely release of consignments.
W llg'i.l',§l.L¢l-ll-__
‘ ' so Ls"-
[V. P. Agrawal)
Chairman
Distribution: As per attached list

6. AIRPORTS AUTHORITY OF INDIA
{DIRECTORATE OF ENGINEERING}
No. AAIICHQITCIZUUQI _ July 15. 2009
TECHNICAL |nsrRuc_T|0N NO. 43
During intensive examination of HVAC work of a terminal building, CTE
observed that the electrical panels have not been designed properly.
It is, therefore enjoined upon all the engineers that while approving
design! drawing of electrical panels following points should be kept in mind
and its compliance ensured with due diligence at site.
is The minimum clearance to be maintained for enclosed indoor air
insulated bus-bar for medium voltage applicable shall be as per clause
7.2 (iii) — (f) of CPWD General Specification for Electric Work (Part — I —
internal) — 2005. The bus-bars shall be made of wrought aluminium or
aluminium alloy, or electric grade copper, confirming to retevant Indian
Standard, as specified.
>>- The Bus-bars and main connections shall be marked by colour or letter
as per table 7 of CPWD General Specification for Electric Work (Part — l
- Internal) — 2005.
in The capacity of incoming should be selected taking into consideration
the total outgoing capacitv of the feedersfload.
In All test certificates of the switchgearsfACBsr'lviCCBs! same should be
obtained and preserved.
"Le The entire electrical panel shall be designed for dust and vermin proof
construction. The enclosure shall have a degree of protection not less
than IF‘ 42 for indoor and IF’ 54 for outdoor application in accordance
with IS I 214?. '
3"» A continuous earth bus should be provided for the entire length of the
switchgear and minimum two terminal shall be provided on the bus for
- external connection to earthgrid.
Te Height of the Panel should not be more than 2.2 mtr. and the height of
operating handle should not be more than 1.8 mtr.
11> Requirement of TopfBottom entry of the cables should be checked from
site and complied during designldrawing stage. -
1-
62
62
' O
AIRPORTS AUTHORITY OF INDIA 2 I‘ T
gornecronnre or ENGINEERING}
No. AAIICHQITCIZOUQI _ July 15, 2009
TECHNICAL rusrnugrrou no. 43
During intensive examination of HVAO work of a terminal building, GTE
observed that the electrical panels have not been designed properly.
It is, therefore enjoined upon all the engineers that while approving
design! drawing of electrical panels following points should be kept in mind
and its compliance ensured with due diligence at site.
is The minimum clearance to be maintained for enclosed indoor air
insulated bus-bar for medium voltage applicable shall be as per clause
7.2 (iii) — (f) of CPWD General Specification for Electric Work (Part — I —
internal) -— 2005. The bus-bars shall be made of wrought aluminium or
aluminium alloy, or electric grade copper, confirming to relevant Indian
Standard, as specified.
>>- The Bus-bars and main connections shall be marked by colour or letter
as per table 7 of CPWD General Specification for Electric Work (Part - l
- Internal) — 2005.
is The capacity of incoming should be selected taking into consideration
the total outgoing capacity of the feederslload.
is All test certificates of the switchgearslACBsr'lvlCCBs! same should be
obtained and preserved.
is The entire electrical panel shall be designed for dust and vermin proof
construction. The enclosure shall have a degree of protection not less
than IF‘ 42 for indoor and IF’ 54 for outdoor application in accordance
with IS I 214?. '
‘P A continuous earth bus should be provided for the entire length of the
switchgear and minimum two terminal shall be provided on the bus for
- external connection to earthgrid.
is Height of the Panel should not be more than 2.2 mtr. and the height of
operating handle should not be more than 1.8 mtr.
is Requirement of Topl'Bottom entry of the cables should be checked from
site and complied during designldrawing stage. -

7. The bus bar system may comprise of a svstem of main horizontal bus
bars and ancillary vertical bus bars run in bus bar alleys on either side
of which the circuit could be arranged with front access cabie entries.
Proper selection of size of bus bar as per current carrving requirement
with suitable bus bar supports keeping in mind the fault level considered
for the LT panels must be ensured.
Panel should be designed to ensure easy and convenient maintenance.
U
(V.P. Agrawal)
Member (P|g)fChairman
63
63
J: is The bus bar system may cemprise cf a system cf main hcrizcntal bus
bars and ancillary vertical bus bars run in bus bar alleys en either side
ef which the circuit ceuld be arranged with frcnt access cable entries.
1*» Preper selectien cf size cf bus bar as per current carrying requirement
with suitable bus bar supperts keeping in mind the fault level cc-nsidered
fer the LT panels must be ensured.
> Panel sheuld be designed ta ensure easy and cenvenient maintenance.
us
(V.P. Agrawal)
Member (P|g)i'Chairman

8. AIRPORTS AUTHORITY OF INDIA
Of o CI-{AIRMAN
No. AAU Member (Pig)/Tech-inst./2009 ‘ll July, 2009
r§cHN1<1eLiNS;'_uUcTIoN N(),__l_":l
"Ii
Vigilance Directorate during examination of a case involving procurement of Security
Equipments observed certain deficiencies in the tender evaluation and suggested following
improvements to overcome the shortcomings/ deficiencies in the system.
1. Combinegl__Test Piece (CTP) used for procurement i.n AAI should be made available by
BCAS after getting it test certified by a nationally recognized laboratory.
2. Combined Test Piece (CTP) test should. be conducted i.n the presence of a.ll the bidders
to provide transparency in the system.
Above instructions to be followed in all future procurement relating to Security Equipment.
L().llg~@o.l.-_
(V. P. Agrawal)
Chairman
Distribution : As per attached list
67
67
AIRPORTS AUTHORITY OF INDIA )i‘l——
Of o CHAIRMAN
No. AAI} Member (Pig)/Tech-Inst./2009 ‘ll July, 2009
r_s_cHNt£‘eL.iI‘~1S;ItUcTIot~I ‘N-UL_H
"ll
Vigilance Directorate during examination of a case involving procurement of Security
Equipments observed certain deficiencies in the tender evaluation and suggested following
improvements to overcome the shortcomings/ deficiencies in the system.
1. Combine§l__Test Piece (CTP) used for procurement i.n AAI should be made available by
BCAS after getting it test certified by a nationally recognized laboratory.
2. Combined Test Piece (CTP) test should. be conducted i.n the presence of all the bidders
to provide transparency in the system.
Above instructions to be followed in all future procurement relating to Security Equipment.
to.iu....t.l.-
(V. P. Agrawal)
Chairman
Distribution : As per attached list

9. AIRPORTS AUTHORITY OF INDIA
DEPARTMENT OF ENGINEERING
No AAI/Member (Plg)/Tech-Inst./2010 ,,L'] Dec, 2010
TECHNICAL IN5TRUCTION_ N(L70
RUNWAY END._SAFET_Y AREAS_(RESAl) L: PRQVISIONIMMINTENANCE &, UPKEEP
ICAO Aircraft Accident/ Incident Data Reports (ADREP) have indicated that aircraft
undershooting or overrunning the runway during. landings or take~offs suffer
significant damage. To minimize such damage, it is considered necessary to provide
an additional area beyond the ends of the runway strip. These areas, known as
Runway End Safety Areas, should be capable to adequately supporting any aircraft
which overruns or undershoots the runway and should be clear of all equipment and
installations which are not frangible.
Provision and proper maintenance of Runway End Safety Areas (RESA) minimizes
the risk and impact of incidents relating to undershooting or over running of runway,
escalating into major accidents, causing serious damages to aircraft and injury_to
passengers and crew.
Qimensions of RESA
i) A Runway End Safety Area should as far as practicable extend from the end of
runway strip to a distance of
- 240 m where the code number is 3 or 4.
- 120 m where the code number is 1 01 2.
A Runway, End Safety Area shall extend from .he end of runway strip to a
distance of at least 90 m.
ii) The width of runway end safety area shall be at least twice that of associated
runway. P
Slopes Q11 RESA
i) General
The slopes of a runway end safety area shall be such that no part of the runway
end safety area penetrates the approach or take-off climb surface.
ii) LongitudinalSlopes
The longitudinal slopes of a runway end safety area shall not exceed a
downward slope of 5 percent. Longitudinal slope changes should be as gradual
as practicable and abrupt changes or sudden reversals of slopes avoided.
iii) Transverse Slopes A
The transverse slopes of a runway end safety area shall not exceed an upward
or downward slope of 5 percent. Transitions between differingslopes should
be as gradual as practicable. _ -
144
144
AIRPORTS AUTHORITY OF INDIA
DEPARTMENT OF ENGINEERING
No AAI/Member (Plg)/Tech-Inst./2010 ,,L'] Dec, 2010
TECHNICAL IN5TRUCTION_ N(L70
RUNWAY END,_SAFET_Y ,AREAS_(RESA) L: PRQVISIONIMMINTENANCE &, UPKEEP
ICAO Aircraft Accident/ Incident Data Reports (ADREP) have indicated that aircraft
undershooting or overrunning the runway during. landings or take~offs suffer
significant damage. To minimize such damage, it is considered necessary to provide
an additional area beyond the ends of the runway strip. These areas, known as
Runway End Safety Areas, should be capable to adequately supporting any aircraft
which overruns or undershoots the runway and should be clear of all equipment and
installations which are not frangible.
Provision and proper maintenance of Runway End Safety Areas (RESA) minimizes
the risk and impact of incidents relating to undershootirig or over running of runway,
escalating into major accidents, causing serious damages to aircraft and injuryi_to
passengers and crew.
Qirnensions of RESA
i) A Runway End Safety Area should as far as practicable extend from the end of
runway strip to a distance of
- 240 m where the code number is 3 or 4.
- 120 m where the code number is 1 01 2.
A Runway, End Safety Area shall extend from .he end of runway strip to a
distance of at least 90 m.
ii) The width of runway end safety area shall be at least twice that of associated
runway. 5
Slopes Q11 RESA
i) General
The slopes of a runway end safety area shall be such that no part of the runway
end safety area penetrates the approach or take-off climb surface.
LOI1g1'l11dinal Slopes
ii)
The longitudinal slopes of a runway end safety area shall not exceed a
downward slope of 5 percent. Longitudinal slope changes should be as gradual
as practicable and abrupt changes or sudden reversals of slopes avoided.
iii) Transverse Slopes A
The transverse slopes of a runway end safety area shall not exceed an upward
or downward slope of 5 percent. Transitions between differingslopes should
be as gradual as practicable. _ -
>41»

10. Clearing and Gradingof RESA
i) A runway end safety area shall provide a cleared and graded area for
aeroplanes which runway is intended to serve in the event of an aeroplane
undershooting or overrunning the runway.
ii) The surface of the ground in RESA does not need to be prepared to the same
quality as the runway strip.
Strength ll
i) A rimway end safety area should be so prepared or constructed as to reduce
the risk of damage to an aeroplane undershooting or overrunning the runway,
enhance aeroplane deceleration, and facilitate the movement of rescue and fire
fighting vehicles.
ii) Since the graded portion of a strip ismprovided to minimize the hazard to an
aircraft running off the runway, it should be graded in such a manner as to
prevent the collapse of the nose landing gear to the aircraft. The surface should
be prepared in such a manner as to provide drag to an aircraft and below the
surface, it should have sufficient bearing strength to avoid damage to the
aircraft. To meet these divergent needs, the following guidelines are provided
for preparing the strip. Aircraft manufacturers consider that a depth of 15 cm is
the maximum depth to which the nose gear may sink without collapsing.
Therefore, it is recommended that the soil at a depth of 15 cm below the
finished strip surface be prepared to have a bearing strength of California
Bearing Ratio (CBR) value of 15 to 20. The intention of this underlying
prepared surface is to prevent the nose gear from sinking more than 15 cm. The
top 15 cm may be of lesser strength which would facilitate deceleration of
aircraft. _
Guidelines for maintenance
|'
Once RESA is designed and provided as Soft Ground Arrestor System, the onus of
maintaining it properly to achieve the desired objective is that of Airport Incharges
and maintenance engineers responsible for operational area. Following points need
special attention to maintain RESA :-
- the area is levelled, made free of wild growth, pot holes/rat holes etc.
~ humps and depressions should be eliminated. ,
~ grass should not be allowed to exceed 10 cm in height. .
1- Periodical plouging of the top layer will help degrading the speed of the
aircraft effectively. Suggested periodicity is 2-4 weeks.
This TI is issued to bring the above salient points (relating to RESA), to the notice of
all APDs/APCs/Airport Incharges/ ATM & Engineering officers entrusted with job
of maintenance and upkeep of operational area. ICAO Guidelines/Standards, Civil
Aviation Requirement (CAR) and AAI circulars issued with regard to subject, may
also be referred :- r 1'
i) DARA circular No. 07/2003- dated 18.12.2003 : Maintenance and upkeep of
Runway and Taxiway strips and Runway End Safety Areas (RESA) and other
parts/ operational areas at Aerodromes.
145
145
)A~__
Clearing and Gradingof RESA
i) A runway end safety area shall provide a cleared and graded area for
aeroplanes which runway is intended to serve in the event of an aeroplane
undershooting or overrunning the runway.
ii) The surface of the ground in RESA does not need to be prepared to the same
quality as the runway strip.
Strength ‘S
i) A runway end safety area should be so prepared or constructed as to reduce
the risk of damage to an aeroplane undershooting or overrunning the runway,
enhance aeroplane deceleration, and facilitate the movement of rescue and fire
fighting vehicles.
ii) Since the graded portion of a strip ismprovided to minimize the hazard to an
aircraft rurming off the runway,‘ it should be graded in such a manner as to
prevent the collapse of the nose landing gear to the aircraft. The surface should
be prepared in such a manner as to provide drag to an aircraft and below the
surface, it should have sufficient bearing strength to avoid damage to the
aircraft. To meet these divergent needs, the following guidelines are provided
for preparing the strip. Aircraft manufacturers consider that a depth of 15 cm is
the maximum depth to which the nose gear may sink without collapsing.
Therefore, it is recommended that the soil at a depth of 15 cm below the
finished strip surface be prepared to have a bearing strength of California
Bearing Ratio (CBR) value of 15 to 20. The intention of this underlying
prepared surface is to prevent the nose gear from sinking more than 15 cm. The
top 15 cm may be of lesser strength which would facilitate deceleration of
aircraft. _
Guidelines for maintenance
|'
Once RESA is designed and provided as Soft Ground Arrestor System, the onus of
maintaining it properly to achieve the desired objective is that of Airport Incharges
and maintenance engineers responsible for operational area. Following points need
special attention to maintain RESA :-
- the area is levelled, made free of wild growth, pot holes/rat holes etc.
~ humps and depressions should be eliminated. .
Q grass should not be allowed to exceed 10 cm in height. .
1- Periodical plouging of the top layer will help degrading the speed of the
aircraft ef.fectively. Suggested periodicity is 2-4 weeks.
This TI is issued to bring the above salient points (relating to RESA), to the notice of
all APDs/APCs/Airport Incharges/ ATM & Engineering officers entrusted with job
of maintenance and upkeep of operational area. ICAO Guidelines/Standards, Civil
Aviation Requirement (CAR) and AAI circulars issued with regard to subject, may
also be referred :- r 1'
i) DARA circular No. 07/2003- dated 18.12.2003 : Maintenance and upkeep of
Runway and Taxiway strips and Runway End Safety Areas (RESA) and other
parts/ operational areas at Aerodromes.

11. ii) Planning Circular 1 of 2010, dated 04.02.2010 : Provision of Runway End Safety
Area (RESA), grading of runway strip and provision of ground markings.
iii) ICAO Aerodrome Design Manual, Part 1 Runways (Chapter 5) and ICAO
Annex - 14. E
iv) Civil Aviation Requirement (CAR), Series B Part I, Section 4.
8. Aviation safety is of paramount interest to AAI. Any improvement in runway safety
goes a long way in enhancing the ‘Safety environment’ of the airport. All concerned
officers at an airport should take stock of the situation and ensure that norms and
standards, laid down are achieved in letter and spirit.
9. Table top runways or runways with insufficient land beyond runway strip shall be
designed separately with an option for provision of Engineered Materials Arresting
System (EMAS), as required. " .
n.
(S.
_ Member (P ) _
‘L ‘tn
Distribution : As per attached list
146
146
ART
ii) Planning Circular 1 of 2010, dated 04.02.2010 : Provision of Runway End Safety
Area (RESA), grading of runway strip and provision of ground markings.
iii) ICAO Aerodrome Design Manual, Part 1 Runways (Chapter 5) and ICAO
Annex - 14. E
iv) Civil Aviation Requirement (CAR), Series B Part I, Section 4.
8. Aviation safety is of paramount interest to AAI. Any improvement in runway safety
goes a long way in enhancing the ‘Safety environment’ of the airport. All concerned
officers at an airport should take stock of the situation and ensure that norms and
standards, laid down are achieved in letter and spirit.
9. Table top runways or runways with insufficient land beyond runway strip shall be
designed separately with an option for provision of Engineered Materials Arresting
System (EMAS), as required. " .
n.
(S.
_ Member (P ) _
T H
Distribution : As per attached list

45. AIRPORTS AUTHORITY OF INDIA
O/o MEMBER(PLANNING)
No AA1/Member(P19)/TeCh― Inst/2017/ Date: 19 August, 17
つ
ι
Technical Instruction No. 118
Sub: Systematic Improvement for the Scrutiny of Concrete Mix Design
Report.
1
Assumed Standard Deviation
Grade of Concrete
M10′ M15
M20′ M25
M30′ M35′ M40′
M45′ M50′ M55′ M60 50
The above values corresponding tO the site cOntrol having prOper storage of
cement, weigh batching of all materials, controlled addition of water,
regular checking of all materials, aggregate grading and moisture contents
and periodical checking of workability and strength. Where there is
ａ
ｅ
ｂ
deviation from the above, the value given in the above table shall
increased by 1N/mm2.
CTEO during investigation of a work had made following observations in the
mix design report received from the Institution:
i) Standard deviation for grade M 30 is considered as 6 Mpa instead of 5 Mpa
ii) Exposure condition not mentioned in the mix design report
Following directions are for implementation in the concrete mix design. Further
scrutiny of the design mix repod shall be done by site officials accordingly to
ensure its conformity:
a) The value of standard deviation may be taken from the following table for
design of mix for the first instance:
一
一
b) As soon as 28 days strength test results of 30 samples (each sample
consisting of 3 cubes) are available, actual Standard Deviation (SD) shall be
calculated and the concrete mix shall be designed using actual calculated
SD, subject to a minimum value of 3.0 Mpa
amendment No. 4 to IS 45G:2000(Copy enclosed)).
(Refer Table ll of
Contd 2/
Assumed
3.5

46. -2-
3. The general environment to which the concrete will be exposed during its
working life can be classified into five levels of Severity, that is, Mild,
Moderate, Severe, VerT Severe and Extreme. Therefore, exposure
condition should be considered and specified in the concrete mix design report
as described in Table 3 (clause 8.2.2) of IS 456:2000. The exposure condition
affects the durability of the concrete and therefore is an important factor to be
considered in determining the cement content in the concrete mix design.
Considering the above factors and other relevant codal provisions, use of
optimum cement content shall be ensured to achieve economy in construction.
The above instructions shall be followed with immediate effect.
Encls: As above
Distribution:
As per attached list
MembeliFiF117:;7

47. ／
´
２
５
３
０
３
５
４
０
４
５
５
０
５
５
６
０
６
５
７
０
７
５
８
０
ぉ
９
０
％
躙
APIIENDMENT NO。 4 PIAY 2013
T0
lS 456:2000 PLAIN AND REINFORCED CONCRETE― ―CODE OF PRACTICE
rFrp疇●
■
臓
′
ッ
is″ rlJ
(Pαga 14,cね ″
∫
′
5.3,s′ ε
ο
″
グ
S`″ ′
ι
″
ο
′
)一―
Deletё .
(Paga 14,●
・
/aぉ
`S.3.4,s(な
ο
″
′
Sa″ rし″
σ
の 一Delcte
(Pttθ 14,磁 ″
sa 5.4,ル ′1)一 Sub飩 lute`Wtter,naturd or tretted,'ヵ だWaer'.
lP,ga 14,ο′
α
な
`5.4.3,針
sr s′ ″
`″`￠
)一 Subsltutc thc f0110wing fOr the cxisting sentence:
(Sca、
vater shali nOt be used for mixing Or curing ofcOncrete because ofpresence ofhal■
nhi salts.'
(Pαgθ 15,cね 霞
`5,5。
6)― Ⅲ
sett the fol10wing ncw clausα
轟 鸞￨
(Pcga 16,拓 α
ら
ル2)一 substitute the f0110wing iable fOr the existing table:
Table 2 Grades of Concrete
(C lauses 6. l, 9.2.2, I 5.1.1 and 36.t)
Group Specittd C●
:爵‖
雪
尊
￨」
:lrttlirStrengthOr
(3)
10
15
20
Standard Concrete
High Streng:th Concrote
NOTES
(l )
Clrdinary Concrere
Grade
Deslgnation
(2)
Ml0
Mt5
M20
M2s
M30
M35
M40
M45
M50
M55
M60
-M 65
M70
M75
M80
M85
M90
M9s
M 100
I In ihe designation of concrete mix I'l refers to the mix and 0re number to lhe specified characteristic compressive
strength of I 50 mm size cube at 2g days, expressed, in Uinrmr.
'- "-"'
2 For cotrcrete ofgrades abovc M 60, design pararneten givcn in the standard may not be applicable and thc values
may be oblained liom specialized literatures and experimental resutts.
Price Group 3

48. Amendment No.4 1o IS 456:2000
(Page 17,ε ′
α
“
`8.1,JJra 3)一
― InSertthc WOrd(lifc'aner`scrvico'.
(Pag′ 20,γα
わ
ル 5,ソVο た 1)一 Substitute tlle folloWing for the existng note:
淵 舗 瀾 鸞 瀾I翻鸞餌薄
諄
FI蠍]熙聯1撚11
bc consldCrcd fOr thcsc purposcs'
ぽ
“
ο
20,rr」 b′ θ5,7vο ′
θ2)一 Insertthe following new note:
'3 ThC minimuin ccment COntcllt,1llaximum frcc・ tvatcr‐ ccmcnt ratio and nlinimum」 adC Of∞ncreL are individually relatcd to eXposuFe'
g額1静 か
1∫鶴
格
話
St品係
l晶::留ツ
:rl胤ぷ
l鮮讐
出
轟
f男子
(嬰
轟
1露 .『
°
md
(Pagθ 21,c′ α
″
sa 8.2.6。 2,P′″
α2)一 Subttitutc thc rollowing for the existing para:
(Additional protection may be obtaincd by thc llSe ofsuitablc impenneable barriers'
(Pαg′ 22,c′ α
2/sa 9.2.1)―一Insert the folloWing at thC endi
税
ぶ
_麓淵'胤T器甘
臨認輩
燎
露∬撫
婁
薇蓮藷IE離璽猟警
毬
of ccllient contcnt,flnc and coarse aggregate cOntent,Ⅵ
(P(go 22,θ ノ
α
″
s′ 9.2.2,メrsr Sで ″ θ
″
Oθ )一 InSCIt thC fOllowing aner flrst sentencc
｀
1■oportioゴ yading of a鐵 鯰 gateS Shali be made by trialill such a way as to make densest,OSSible cOncrctC'
(′ α
gc 23,7α b′
`8)一
―
SubStitute lle fbllowin3 for thc cxiSting tablc:
Tabte 8 Assumed Standard Deviation
{Clause 9.2.4.2 and Table 11)
Grade o「 COncretc
MI:}
M;:}
frll:t*""" vulucs conesp.n. to rhe sire conrrol having pfoper srorage ofcemenr; weigh harchin,:t rl, .-rt:::l:_:lfl].:":r:;:::*
water: regu!tr checking of all materials, aggegate gradirg and nroiiure content; md periodical checkiDg of workability and strength'
wher€ there is deviarion ftom the abovc, the values given in lhe above table shalt be increased by I N/mnr?'
? For grades abovc N'[ 60, the standard t]eviation shail be establishcd by actual trials based r:n assumed proportions' before finalizrng the
Assumed Starlderd Devietion
N/mm2
3.5
2

49. Amendment No.4 1o IS 456:2000
(Pagθ 24,σ ″甲e10。2,′ α
ra 2)――SubStmute the fo‖ owing for the existing para:
`For large and illedium proiect S■ es,the concctc shttl be sourcedお m ready‐m破ed concrete plants or,om
captive on― sit,Or OfF‐ sitc automatic batching and■1lxing Plants Thc concrctc produccd and supplicd by rcady‐
ふixed concrete plants shall be in accordance with IS 4926.In case of concrete ttom captivc on‐ site ol oO「 site
autolnatた batclling alld mixing plants,similar quality control shall be followed'
(Pag`24,σ ′
α
″
s`lQ2.1,ノン
ド
rs`″″
″
“
)一 Subsututc the fOllowing for thc existing sentcncc:
(The grading of aggregate shali be conttolled by obtaining the coarsc aggregate in diFerent sias and blending
them in right prOportions,the diα brent sizes being stocked in separate stock‐ piles.'
(Pa.・θ
24)oわ おο10.2.2)一 SubStitutc the folowing for the exislng clausel
`10.2.2 Thc accuracy of the measuHng equipment shall be within■ 2 pcrcent of the quantれy or cemei■ alld
mineral admixtures being measured and within■ 3 perccnt ofthe quantity ofaggregatc,chemical adnlixtttrcs md
、
vater being lneasured.In a batching plant,the concrcte production cquipment shali be calibratcd initially at the
tirne ofinstallation or reconditioning ofthe equiplllent and subsequently at the following intervalsi
a)MeChanicaν knife edge systems:At least oncc everyい vo monthS
b)Electricaν load cell systcms :At least once every three months'.
(Page 24,ο々trsι 10.2.3)― ― SubStitutc thcお llowing for the existing clausc:
`10.2.3 All ingedients of concrete shali be used by■ lass cxcept water and chcrnical admixtlires,which lnay bc
by volume.'
(Paga 24,εね
“
s`10.2.5,ノ btt Sι ″
″
″
ca)一 Inser the fOHOwhg aner founh scntencc:
`Whcrc batching,lants are used,it is recommended to dOtentine moisture content by moistlLre prObes titted lo
the batching plants'
(Page 24,cノ α
庵
`10.3,′
な
′
α
″
″
S′
`ο
″
′
s`“″
″
“
)― Substitute the fonowing fOr the exお thg scntences:
`Concrctc shn bc m破 cd h a mechanに 滅 m破er(s“ arsο ls 1791 and IS 12119).It Shdi be cnsu“ d that
stationaFy Or Central mixers and mck mixers shall comply with the performance criteria of mixing cfficicncyぉ
perIS 4634. Mixing elaciency test sha‖ be perfomed atleast once in a year.'
(Pag`25,oノα
“
s`10.3.1) Substitute the fol:owing for thc existing clausc:
`10.3.l As a gllidance,the mixing time shali bc at least 2 min for conventional iee fall(drum)batch type
COllCrete nlixers,For other types ofmore ettcient mixcrs,manuね cttrers'recomiendations shall bc liDllowed'
(Pαg′ 25,`″ ぉ
`10.3.3) Substitute the fol19wing for the e対
sting clause:
`10.3.3 Dosages of retarders,plasticizers and superplasticizens shan be restricted to O.5, 1.O and 2.O pcrcent
rcspOctively by mass ofcementitlous inaterials;howcver,the dosages ofpolycarboxylate based admixtures shall
not exceed l.O percent.A hther Vahc Of above admⅢ tures may be used,if agreed upon bcmeen the
manufacturer and the constltctor based on perforlnancc tcsts relating to workabiliり ,se■ing time and carly age
strength'
Ｏ
υ

50. Amendment No.4 to IS 4S6:2000
(P“ι
25,cra“ θ
ll。 1,ゴψ ttα ′
Fα わ
o― Subttiは C the folowhg fOrthe existing tablα
a) Deviation from specified dimensions +10
of cross-seclion of columns and _'i *,
beams
h) Deviation from dimensions of
fbotings:
1) Dimensions in +50
plan -t0
mm
2) Eccenhicity 0.02 times the width of tlre footing in the
direction ofdeviation but not more than 50
mm
3) Thickness +50
_l0mm
or
+ 0.05 times the specified thickness,
whichever is less
(′鱈
`27,cね
″
s`13.4,′ α
″
41,力 ′
″
′
力
S′ ″
′
`″ “
)― Delete.
IPttβ 30,物夕ι H(s“ arSο И
"“
誦
"な
Ⅳοlα″
′3)l一 Subttimte thc following fOr the existing
Tablc ll:
Tablc ll Characteristic Compressive Strength Compliance Reqlllremcnt
(C′ α
お0161“″163)
Specified
Grade
(1)
Mean ofttc Croup o競
∬
躍
囀
翡
鷲
鳳
FngC°
nsecut■ e Test
Mi"
(2)
M15 and ≧兎k+0.825 x establshed standard devね tion
above (roundedOfFtoneircstO.5Nノ
mm2)
or
,/"r+3N/mm2'
whichever is greater
NOTES
I [n lhe absence of established value of standard deviation, the values given in Table 8 may be assumed, and attempt should be
nrade to obtain results of30 samples as early as possible to €stabtish the va,ue ofstandard deviation.
2 llor concrete of quantiry up to 30 mr (where the number of samples to b€ takon is less than four as per the &equency of sanpling
given in 15,2.2), the mean of test results of all such samples shall be/d + 4 N/mm2, minimum and the requirement of mrnimum
individual t€st tesults shall be/a - 2 N/mm2, minimum. However, when the number of sample is only one as per 15,2.2, the
rcquirement shall bejrd + 4 N/mm2, minimum.
lPage 41, clause24.4.l (a)l -- Substitute the following for the existing:
'a) Calculate the sum of the midspan moment and the average of the support moments (neglecting signs) for
each panel.'
(Page 42, clause 25.2.1, Note 2)
-
Insert the following new note:
'3 Forptaincemeotconcretgof!v{lSgradewithnominalreioforement,tiedesignbondsiressmaybetakenml.0N/mr.'
Individual Test
Results in N/mm2
Min
(3)
)A - 3 Nimm2
4

51. ′
ｙ
轟 綱
醸軸
ol臨 鷲
ヽ _墟撼
も藤
ヽ
翡K;:,靭懸
ぽ ι
解 :43,cル餞
6θ 2観 2.1。 1,P″α2)二 鍮 饉尋看澪10W彎 盤 the md OfP籠 略:
`For ttitt bonded epoxy coatul defomedも 購 ,曇鰺 i bOnd Stress values shan be takenな 80 percent of the
vR臨es glven in the above轟 ■.3
ばα
″ 67,cree353。2,ras′ ′
″α
,議″
ィ
seだθ
″
Cの 一 Su歯曲鵞 機 お島宙略 缶 縁多
c純亜ag wntenc鋭
`For paicularly elaressiVe envronment such as.vtt severe'and`eneme'categones glven in Tabb 3,the
assessed arface wid■ ofmcks shOuld■ otin genmL exceed O.lmm.'
ぱag`74,c′ 劉 ●
40。 S.2,ヵ蒻
"′
a)一 Substitute,`Σ Иw'for`И 3'in the nttmJは
甘を
″ 鋤 ,aFttε 露
,仏Lム 辱 機 遡 にble←ea arsa И
“
θ
油
昴 ′
″肱 鋤 ― SubStimte
` M50 M55 '
力″
5.2 5。6
〔
′
蟷●81,r畿21←踵
“
凛 。ん 囮 轟 終
azr M22)]一 SubStilmte the m轟 es againd M 55 and instt new row
for M 60,as fOnow餌
Gradc of
eoncrete
Pcrmicriblc Stress in Comprcssion Permissible Stress in
Bond (Average) for
Plain Barr in Tcnsion
0)
M55 18.0
M60 20.0 15.0
.-M36'andffi,
5.2
(Page 92, clause Wl, line 5)
- Substitute ,Fig.
27, for.Fig. 26'.
(CED 2)
urogり貯 uoへ 慾
yS,Ntt De胸 :,撫運
ξ
{ke-
5

52. Airpons Authority of lndia
O/。 Member(Planning)
No:AA1/Member(Plglrech―Inst/2017/ Date:′ O July′ 2017
Te€hnical Instruction No. 120
Sub: Addendum to Specification for Granular Sub-base (GSBC) & Wet Mix
Macadam (WMM) - reg.
It has been observed in one of the cases in NE Region that, it is possible to get all the
parameters of Granular Sub-base Material (GSBC) and Wet lvlix lvlacadam (WMM) well
within the speciflcation by blending the locally available river bed material with part of
crushed aggregate. Accordingly the following addendum has been made in clause-2 of
speciflcation of GSBC & WMM lssued vide Techntcal Circular dated 29.04.2015:
The following para to be added at clause 2.1 of GSBC (Page 1 of 22) / WMM (page 5 of
22)i
1. Locally avallable river bed material canalsobe used by blending river bed material,
river sand and soil with part of crushed aggregates to get all required parameters
well within the range of specification.
2. In general, North Eastern region and other airports where locally available
materials / river bed materials are used, the Analysis of Rates (AOR) for GSBC and
Wl4lvl to be modified accordingly.
Member (Plannihg)
Dist"buuon:
As per standard lst

53. ATRPoRTS AVTHORTJY OF NqA
pr,REcToFATF qF ENGGrNFERrl.r9
No. Ml/Membe(Plg)I[ech-lnsU2017 l l Sep' 2Ott
TEC.IINIQAL INSTRUCTION l.lo. -l?l
Subject: - Use of LED lighting in Airports,
1. As per the directives of Ministry of Porarer, Government of lndia received through
Secretary MoCA, the installation of LED based lighting is mandatory in all Government
buildings as well as all community projects.
2. A Technical Circular vide ref. No. Ml/CHCUEngg-EfiC-LED/2014 dated 08.08.2014
was issued for use of LED fittings in upcoming projects as well as for replacing the
existing conventional light fi tting.
3. The relevant lS specilications for LED Luminaries are more than 5 years old and not
revised till date. Due to the continued research and development in this field by
manufacturers, there is a need lo revise certain technical parameters of LED light
fittings to match the current advancements.
4. There are various LED light littings manufacturing companies in open market, which
meet the relevant specifications for lndoor & Ouldoor purposes as per the current
advancements.
5. Therefore, NIT approving Authority while approving the make of LED luminaries shall
ensure that the make selected / proposed: -
a. Shall comply with the relevant lS specifications with up to date amendments.
And
b. Meet the Technical parameters enclosed as Annexure-l
6. Accordingly, this Technical lnstruction supersedes the earlier Technical Circular issued
vide ref. No.AAl/CHQ/Engg-EIIC-LED/2014 dated 08.08.2014.
It is enjoined upon all engineers for strict compliance.
Enclosure: Annexure-l

54. Annexture - |
TECHNICAL PARAMETERS
Sr.No Technical Parameters Recommended requirement
1 Efficiency of LED light fitting
(Efficacy)
Min 95 Lumens/Watt
2 Life of LED light fitting Not less than 50000 burning Hours
3 Approved make for LED Nichia/Cree/Osram/Phillips (Lumiled)/Sharp/Seoul.
(SEE NOTE BELOW)
4 CRI (Colour Rendering lndex) Min 80 for indoor applications and Min 70 for outdoor
applications.
5 THD (Total Harmonic Dastortion) Less than 10%
6' Type of Housing Extruded aluminum / Standard alloy housing for indoor
applications.
High pressure die cast aluminium / Standard alloy for
outdoor appliations.
7 lP Category lP 20 or higher for indoor applications and lP 65 or
higher for outdoor applications.
8 Surge Protection Shall be provided conforming to relevent lS standard /
IEC 6'1643-ll class - 2 & EN 61643- ll Type - 2.
o Labeling i identification Mark Manufactures Name / Logo engraved / Embossed on
housing / body or Name i Logo on aluminium plate
Lables or Name / Logo printed on housing / body
10 Warranty period 5 years warranty from actual date of completion of work
on complete luminiar including driver / control gear,
LED, all accessories etc.
Power Factor Equal to 0.95 or More
12 Total Power consumption of
fitting.
Not More than 110 % of rated capacity of LED Light.
Note: - An undertaking be obtained from fitting manufacturer regarding confirmation
about use of said make LED'S in their fittings.

55. `
AIRPORTS AUTHORITY OF INDIA
O/o Member (Planning)
Technical Instruction No. 123
Subr Composite Rate Contract for Civil and Electrical Minor Capital Works on
Percentage Rate Basis.
It is noticed in the past that CAPEX at station/AirporvRHQ level invariably fall short due to
long processing time taken for executing multiple minor capital work. In the process
airports suffer due to lack of passenger amenities and sometimes fails to meet operational
exigencies resulting into public critics and bad image of AAI.
2. In general Engineers posted at field stations are found busy in calling/ finalizing
tenders, In view of multiple minor capital works, the load on MU/SAU is also increased
multiple folds.
3. To streamline and expedite the execution of minor capital works at faster pace, it
has become imperative to adopt rate contract system as per procedure appended below,
lvlainly minor capital work shall be dealt under this system.
Ref No: MI/14(P)m/2018
Procedure
Preparation of Estimates:-
1嗅 」
anuary 2018
4
41
1.11 !t list of work atong with their tine-estimate sha be assessed by the concerned
JtGM/DGI.4 Engg based on all the planned and budgeted capital wor'ks of indjvidual
airports falling in their jurisdiction.
4.1.2 The preliminary estimate shall be prepared based on appticabte DPAR/DSR (Civil or
Eledrical).Separate estimates shall be prepared for work in operational areas, including
terminal facilities ,non-operational areas , works in residential area including CISF
barrack and allied works. The item for structural design/soil investigation/survei works
etc be included in preliminary estimate and same shall b! made part oi eOq.The iiem like
supply of manpower etc shall not be included in the estimate. )irfield pavement work of
Runway, taxi ways and apron shall not be included and the sdme to be executed
separately,
4.1.3 C_ombined- list of works be got approved by administrative authorities i.e. RED/
Airport Director/Principal CATC/Airport In-charge in line with prevailing DOp provisions. It
shall be ensured that the estimated cost of combined work in each caiegory as deflned in
para 4.3.4 shall not exceed the M&ES powers of station in charge.
Page 1of 4

56. 4.2 Accord of Administrative Approval and Expenditure Sanction (M&ES):-
The M&Es shall be accorded by competent authority as per Delegation of Powers for the
combined work. The details of schemes included in the estimate shall be clearly brought
out in history sheet for enabling Finance Offlcer to ascertain budget provisions. After
accord of M&ES, the estimate shall be processed for Technical Sanction.
43 Technical Sanction and preparation of NIT:-
4.3.1 All such estimates shall be technically sanctioned by the competent authority as per
delegation of powers but not below the rank of IIGM/DGN4. Percentage Rate Notice
inviting tender (N.I.T.) shall be prepared on approved GCC and same shall be approved
by the authority that has accorded the technical sanction.
4.3.2 Applicable DSR (Civil & Electrical) shall form part of Schedule 'A'. In case it is
foreseen that certain lYarket Rated Items are required to be included in Schedule'A', then
such items shall be included in Schedule'A'and rates of such items shall be worked out
based on prevailing market rates and such rate shall be reversed back to make it at par
with applicable DSR by applying prevailing cost index. Presently for civil works CPWD DSR
2016 is applicable and same shall be base DSR. In case for electrical works, if DSR of
2016 is not available and older DSR viz 2014 etc. is available , then the rates shall be
brought at par with base DSR i.e at 2016 level by suitable enhancement/abatement.
4.3.3 The Draft NIT shall contain list of work to be executed alongwith their tentative
costing and time period for completion. Prioritized list of execution shall also be made part
of tender document, if necessary to bind the agencies contractually. Work speciflc special
conditions, technical speciflcations if any, shall be included in NIT by TS authorlty.
4.3.4 Capital work to be categorized as under;
(i) Works in operational area and terminal facilities.
(ii) Works in non operational area.
(iiD Work in residential area including CISF barracks and allied works.
TendeB be calted location wise as it is preferable to have more than one agency for
speedy execution and to have alternate agencies in case of exigencies. Considering the
maqnitude of work locations be clubbed for smaller airports/low value of tender'
4.4 Call of tenders & fixing of Agenciesr
4.4.1 Percentage Rate Tenders based on applicable DSR (Civil & Electrical) for technically
sanctioned estimate shall be called from intending bidders. The estimated cost put to
tender shall be 500/o of total estimated cost and eligibility criteria shall be kept based on
600/0 of total estimated cost.
4,4,2 foiial cost of work and mode of execution of contract shall be mentioned in NIT'
The tenderers eligible for this estimated cost of work shall only be permitted to
participate. Earnesl Money Deposit and Tender Fee shall be payable as per manual
provisions in proportion of the estimated cost put to tender.
Page 2 of4
じ

57. 4.4.3 The rates quoted by flrst lowest tenderer, if beyond acceptable limit, shall be
brought down to an acceptable level through negotiations. No negotiation shall be made
except L-1 bidder in any circumstances. Justification of offer shall be based on cost index
applicable to the airport.
4.4.4 All the other tenderers shall be given a counter offer to reduce their rates to the
rates quoted (or negotiated rates) by first lowest tenderer. In case L2 or L3 or both L2 &
U, don't agree for reduction of rates at par with L1 and other agencies L4, L5 etc. are
agree for reduction of rate at par with L1 then in such cases L4,L5 etc as the case may
be shall be selected. Agency(s) who agrees to reduce the rates at par with L1, shall be
selected in original order of position. A maximum of three agencies shall be seleded each
for operational area including terminal facillties and non operational areas tenders.
4.4.5 In case where two or more agencies have participated in tender process and after
opening of tender, no agency is agreed to reduce the rate at par with L1 , in such cases,
only 50% of total work shall be entrusted to L1 and fresh tenders shall be called for
balance work.
4.4.6 Tender rate shall be valid for 18 months from the date of issue of empanelment
letter or completion of allocated work to a bidder whichever is later. The tender rate may
be extendable with mutual consent of AAI and tenderer without any enhancement of
rates whatsoever the reason.
4.4.7 Tenders shall be accepted/approved by the authority as per delegation of powers
for the full estimated cost of work but not below the rank of JIGI4/DGM. However
finan€ial concurr€nce is required to be taken only once after finalizing the list
of eligible agencies.
4.5 Operation of Contract:
i. As and when requisition of works/jobs is received from user department, the same
shall be assigned to one of the short listed agency by JIGM/DGM starting from
original L1 with detailed schedule of quantities and time allotted for completion i/c
mobilization period.
ii. An agreement shall be drawn with bidder when work is allocated to them.
iii. Allotment of a work shall be decided by a committee headed by RED/Airport
Director as the case may be, and consisting of members from user dte., Finance
dte.& Engg dte. The subsequent work shall be assigned to alternate agencies on
rotation basis in the order of original order of position.
iv. It shall be ensured by RED/Airport Director that all the works listed under tender
shall be awarded to bidders within 12 months of empanelment. All prerequisite i.e.
NOC, DGCA clearance etc shall be obtained within specifled period. In case any
work is required to be allocated after period of 12 months then in such cases
committee shall record the reasons of delay in work allocation, However no work
shall be allocated after 15 months of empanelment.
Page 3 of4

58. V. It shall be ensured that original Ll bidder be allocated works amounting to approx.
50% of total estimated cost and subsequent bidder L2 and L3 be allocated works
amounting to 30olo and 20olo of total estimated cost with a permissible variation of
+ 5olo. Under no circumstances, bidder who ranked on lower side should be
allocated work of higher value than the bidder who is ranked above them.
In case of only two agencies, the work shall be allocated to both bidders in
proportion of 650/o and 35olo i.e. original L1 bidder shall be allocated works
amounting to 550/o of total estimated equal proportion and remaining 35olo work
shall be allocated to other bidder.
vii. Extra ltems/Deviation Items/Substituted Items and other contractual matters shall
be dealt as per provisions of Works Manual 2017 and DOP 2017.
viii. Authority accepting the tender with approval of next higher authority shall have
discretion to switch works/contracts from specific locations in case of non
peformance of contracted agencies or due to exigencies of any soft. The
contractor shall raise the bills for work done & payments shall be made accordingly.
ix. In case of any work of operational exigencies not included in the list of works, then
such works can be allocated to bidder on recommendation of committee as per (iii)
above. Work shall be awarded to bidder in queue i.e to the bidder to whom no
work is allocated. In case the works has already been allocated to all selected
bidders then in such cases the work shall be allocated to original L1 bidder. This
work shall be treated as additional work .
5. The procedure given above may be taken as the general guidelines. The system
may require some special conditions to be incorporated in the tender documents hence
further Airport specific modifications & detailing, if any, be dealt accordingly.
6. Works of pure specialized jobs which are not covered under DSR items be taken up
separately at the discretion of technical sanctioning authority in consultation with
administrative authority.
7. In case of manpower shortage for supervision of works, Engineer-in-Charge shall
have powers to engage the site engineers through outsourcing. The expenditure for the
same shall be charged to contingencies of work with prior approval of concerned GM
Engg.
B' The outcome of Annual contract system on timely award and execution of work
shall be submitted to Concemed ED Engg ,CHQ on monthly basis for appraisal of
Management.
Distribution
As per attached list
110
Page 4 of4
Membe(Planni
(

59. Airoofts Authorihr of India
O/o Member (Planning)
No. MI/Membe(Plg.)fl-ech-Inst./20 18/ Dt. t6.03.2018
Technical Instruction No, 2
Sub: Procedure for listing of preferred makes for use in AAI works for Civil
Engg. items.
On the basis of recommendation of the designated committee on "Standardization &
uniformity of makes/products" specified in NITs for use in AAI works, the list of
makes/products specified in the tenders shall be project specific. The following
criteria/guidelines for selection of makes/products shall be adopted:
1. The approved list of preferred makes issued by AAI from time to time shall be
provided to PMC/Engineering Consultants by the concerned CHQ/RHQ engineering
officials for various works for their consideration in the NITs.
2. Based on the above details provided, the PMC/Engineering consultant (appointed
for a particular work) shall give their recommended llst of makes to the engineering
official dealing the matter.
3. The Terms of Reference of PMC/Engineering consultant for a particular work shall
include the following:
. To ensure that'monopoly'for any item does not take place and recommend all
equivalent acceptable makes.
. To give due consideration to the makes/vendors/products from approved list of
preferred makes issued by AAI from time to time as well as CPWD.
o To give recognition to BIS approved makes,
o Preference shall be given to makes/brands manufactured near the vicinity of site
of work as well as their service centre.
. Ease of availability of the make.
r PMC/Engineering consultant may recommend any other make/brand apaft from
the approved list of preferred makes issued by AAI from time to time, to have
the benefit of market intelligence,

60. . The equivalent makes proposed shall be within the price range of + 10o/o as per
para 58.4.1 (r) of MI, Engineering Works Manual.
4. Thereafter, the recommended list provided by the PMC/Engineering Consultant for
a particular project shall be scrutinized by the concerned engineering officials
considering the nature of project/location/time period/past experience, etc. and
shall seek approval from the concerned ED (Engg) for cHQ schemes and GM (Engg)
for RHQ schemes. on approval of the above list, the NIT approving authority shall
speciff the manufacturers'in the tender document.
5. Thereafter, these make/brands shall be forwarded to committee Head for
..standardization and uniformity of makes/products" for updating the AAI approved
list of preferred makes.
The above procedure may be brought to the notice of all the concerned for strict
compliance.
(
Member
Distribution:
As per standard iist.

61. A:rpOrts Authority Of lndia
Oノ O Member(planning)
No.AA1/Member(Pig)ノTech‐Inst/2018/
Technical Instruction No. - 3
Sub: Empanelment of Material Testing laboratories in AAI.
Extant guidelines, on Empanelment of Material Testing Laboratories, issued vide
Technical lnstiuction No. 110 dated 17.08.2016, have been reviewed and the amended
guidelines to ensure Pan-lndia Empanelment shall be followed as below:
1. The laboratory shall have accreditation as per lso/lEc-17025 from any
accreditation body having an MRA (Mutual Recognition Arrangement) with
lnternational Laboratory Accreditation cooperation (ILAC)/International
Accreditation Forum (lAF) such as National Accreditation Board for Testing &
calibration Laboratories (NABL), etc. The relevant documents of the accreditation
body to this effect shall be submitted by the laboratory to be empanelled along with
other necessary documents.
2. only those laboratories shall be empanelled who are having at least one person
with minimum qualification of BE/B.Tech (civil) with minimum 03 years' experience
in the relevant field.
3. lf any laboratory is having branches in different cities, each branch has to apply
separately.
4.Thetestingfacilitiesatanylaboratoryshallbeinaccordancewiththescopeof
accreditati6n issued by the accreditation body such as NABL' etc
5. The following procedure shall be adopted for empanelment of laboratories:
a)ThelaboratorywhichintendstoempanelitselfwithAAlshallsubmit
application to t-he General Manager (Engg) at RHQ/Project'
b)onreceiptoftheapplication,theAGM(c)/SM(c)atthatairporVregionshall
send the standard' format (Annexure-X') to the agency to provide the
necessary details (copy enclosed)'
c) The application in the standard format sent by the laboratory shall be
scrutinized and its taboratory inspection shall be undertaken with the approval
of GM (Engg) at RHQ/Project.
Datedハ うMar 2018
PIO

62. °:よ鯖
Tttj稽
`]電
:門鳳i卵竃
淵嘗
:i」%:臓譜:縣 1:翠ま
11な
labOratory and submit the inspect on report along with the recOmmendat On
as pe「 standard PrOfOrrna to the conce「 ned GM(Engg)at RHQ′ Prolect
O GMにngω ttRHαProledshttЯ
:lT鵠l]晏:『蹴]配騒
∬
T断:
labo「atories RegiOn_wise sha‖
website by the cOncerned RHQ/Prolect ofFice
6 Before expiry of accreditat on certificate,the laboratory sha‖
be asked tO submit
拙1鰍1肥∬柵 珊 璧椰臨 階艘柵 :辮馴
7鮮
ば
累寵吼
i想紺
悧
ξ
igξttLT恭
1贈
制￨[::問'淵誦
[緞刷
material testing labOratOr es
8
醜
ill肯il』lil]:il:Iξil(1:[￨:!ifi樫:]￨:￨:11重￨II』
j
samples and fOr conduct ng field tests
The abOve procedure sha‖ be fO‖Owed d‖ igently fO「 empanelment Of mater al
腿胤解繁
:需浬i;鷺[朧lPnお
Technca hsmttOn Nollo dabd 17o32046
Enci: Asaゎ 。
ソ
θ
ly'ember (Planni
D st百 buloni
As per standard‖ st

63. Annexure - X
lnspection Report
Sub: Empanelment of Material Testing laboratories in AAI.
S. No. Parameters Findinss
Name & Address of Lab
with Phone, Fax, E-mail,
Website
2. Established since
3. Details of registration /
accreditation, if any, with
BlS, NABL, Govt./ Semi-
Govt. / Public Sector
undertaking (Central /
State) aqencies
4. Details of testing
equipment
5. Testing charges
6. Unit headed by
7. Manpower
8. No. of Engineers having
B.E./B-Tech (Civil)
qualification with Minimum
3 years of experience in
the relevant field
Experience in the field of
testing
10. CIlentele
Recommendation
regarding tests based on
phvsical inspection
12. Remarks
(signature, Name & Designation (signature, Name & Designation
of lnspecting official) of lnspecting official)