Excavation Layout

2. Pakistan Housing
Authority
Commercial &
Residential Building
Presented By:
Adnan Ali
& Babar Khan

3. Outline
•Project Introduction
•Materials Used in site.
•Construction Equipment.
•Test Performed on site.
•Procedure of Construction.

4. Location Plan
Kurri Road, Park
Enclave
Islamabad

5. Description of Project
Sr No. Description Category No. Covered Area (Sq. ft)
1 Basement Shop 20 270
2 Ground Floor Shop 20 270
3
1st Floor
Appartment-1 04 892.50
Appartment-2 04 948.62
Appartment-3 02 1055
4
2nd Floor
Appartment-1 04 892.50
Appartment-2 04 948.62
Appartment-3 02 1055
5 3rd Floor
Appartment-1 04 892.50
Appartment-2 04 948.62
Appartment-3 02 1055

6. Project Stakeholders
• Client :
Pakistan HousingAuthority(PHA).
• Designer :
MEINHARDT
• Consultant :
JV-CIVTECH EPEC Consultants.
• Contractor :
MALIK ABID BROTHERS CONSTRUCTORS.

7. 1. Material used In Site
• Termite Bi flex
• Fine Aggregate
• Coarse Aggregate
• Ordinary Portland Cement(OPC)
• Reinforcement
• Water Stopper
• Concrete spacer

8. Termite Bi Flex
•Double Action Protection
•Long Protection Period
•Low Environmental Impact

9. Fine Aggregate/Sand
• Lawernancepur Sand
• Passed from #4 sieve
• Free from Clay
• Density of sand is 1650
kg/cubic meter.

10. Coarse Aggregate/Crush
• Margalla Crush Used in site.
• Passed from Sieve ¾” size.
• Free from Stone dust & other
particles.
• Density of coarse aggregate is
1550 kg/cubic meter.

11. Ordinary Portland Cement
• Bestway Cement used in site.
• It will used with month after
manufacturing
• Stored in Controlled
Environment.

12. Reinforcement/Rebar
• 60 Grade Steel
• Mostly No.4 & No. 6 Bar used in
structure.
• No.3 Bar used for Strips.

13. Water Stopper
• Water Stops are flexible
Plastic strips which provide a
physical barrier to Water at
concrete joints, mostly in
basements and below ground
level construction.

14. Concrete Spacers
• There are two type of spacer
made on site.
• 1.5inch thick spacer.
• 2inch thick spacer.
Diaphragm for
spacer
Concrete Spacers

15. 2.Construction Equipment
•Excavator
•Tipper
•Concrete Mixer

16. Excavator
•Excavators are used
in digging foundation,
backfilling etc.

17. Tipper
• Tippers are used to travel a
massive storage of material from
one place to another place.
• In one trip it will transfer about
400 to 500 CFT material.

18. Concrete Mixer
•Make 250 to 300 CFT per
Hour. If Operator work
efficiently.

19. 3.Tests Perform on Site
• Field DensityTest (FDT)
• SlumpTest
• CubeTest For Compressive Strength

20. Field DensityTest (FDT)
• It is perform to measure the compaction of soil.
• Speedy moisture bottle is used to measure the moisture contact in soil.
• Minimum Compaction required on site is 95%.but in our project it achieved
98% compaction.
• Moisture content in our site is about 7%.
• Compaction should achieved by using 3 ton Roller for one day working.
• Soil in this is hard.

21. Continue…..
Digging
Hole of 6” Measuring Hole
depth.
Filling Sand
in Hole
Moisture Content
by Speedy
Moisture

22. SlumpTest
• Slump test is used to check the
workability of concrete.
• Value of Slump is 3” in site when
pouring of concrete.
• It is performed by using slump
cone apparatus.

23. CubeTest for Compressive Strength
• Cube test performed by consultant
for checking the strength of concrete.
• 3000 Psi concrete test lies between
the range of 2900 to 3100psi .
• Proper process followed in filling
according to British Code.

24. 4. Process of Construction
• Survey
• Boundary Marking
• Excavation
• Compaction
• Anti-Termite Proofing.
• Lean Concreting.
• Layout of Grids & Columns
• Raft Foundation.
• RetainingWall
• Columns steel fixing & Levels.
• Beam & Slab Shuttering
• Defect &TheirTreatment

25. Survey
• Before Starting the Project Initial survey should be done by Client to take
information about site.The Following information's are given below:
• Site Accessibility
• Utilities
• Soil Conditions'

26. Boundary Marking
• After awarding the contract client, consultant & contractor will
make a joint survey and locate site boundaries and Temporary
Bench Mark using for leveling purpose.

27. Excavation
• Excavation done on site by
excavator.
• It will done by Slope & Stepped
method.
• Average depth of excavation is
10.64ft.

28. Compaction
• Soil strata of this site is hard so no any vibratory compaction needed.
• Compaction should be achieved by using 3Ton Roller.
• Working hour of roller was 12 hours.
• After compaction we check relative compaction by using FDTTest.
• The relative compaction of soil is 98%.

29. Anti-TermiteTreatment
• Termite bi flex is used for termite
proofing.
• It is used 20 L/100square meter.

30. Lean Leveling &
Concreting
• Mark k levels of lean levels by using
auto level .
• Thickness of lean concrete was 4”.
• It was completed in one day.

31. Layout of Grids & Columns
• Laying of Girds X,Y direction on ground.
• There are three different sizes of column in this
structure.
• C1 : 12x30 = 4 No.
• C2 : 12x 24 = 36 No.
• C3 : 12 x 12 = 12 No.

32. Raft Foundation
Steel fixing of 1st Mesh
Fixing of Steel Chairs

33. Continue…..
2nd Steel Mesh Completed &
Installation of water stopper
Dowel Bars for Stairs

34. Retaining Wall
Reinforcement &
Sheeting work
Pouring of concrete &
Compaction byVibrator
Final RetainingWall

35. Steel Reinforcement & Leveling
Reinforcement & Lap in
Column
Curing with Jute Bags

36. Continue….
Levels Mark on
Column
Column Cups for
monolithic Joint

37. Beam & Slab Shuttering

38. Defect &TheirTreatment
• Defect due improper compaction.
• It was treated my preparing a
cement paste with (1:2).

39. OtherThings We Observed on Site
Steel Storage &
Cutting Area
Temporary Platform
for Concrete Mixer
Prayer Place on
Site

40. Conclusion
• The Bestway to memorize thermotical knowledge to see a practical
example.
• Not use any safety measure on site.