how to control termites in building?

1. GOVERNMENT POLYTECHICH DAHOD
Civil engineering department
A seminar on
“control on termites (white ants)in buildings”

2. SUB:MAINTENANCE & REHABILATION OF
STRUCTURES (3360605)
• ENROLLMENT NO:156300306125
• NAME:VANZARA RANJANA H.

3. INDEX
• Introduction
• Anti termite treatment
• Anti termite treatment two types
• Junction of the wall and floors
• materials
• Site preparation
• Mode of application and rate of application

4. INTRODUCTION
“anti termite treatment :pre constructional anti – termite
treatment is a process in which soil treatment is
applied to a building in early stages of its
construction. The purpose of anti – termite treatment
is to provide the building with a chemical barrier
against the sub – terrain termites.”

5. ANTI -TERMITE TREATMENT:
• The termites are popularly known as white ants and they are
found in abundance in tropical and sub –tropical countries.
These insects live in a colony and they are very fast in eating
wood and other cellulosic materials as food. The also damage
non – cellulosic materials like plastic , leather, etc. the term
termite – proofing is used to indicate the treatment which is
given to a building so as to prevent the growth of termite in a
building.

6. ANTI-TERMITE TREATMENT MAY BE
DIVIDED INTO TWO CATEGORIES:
(A) Pre – construction treatment
(B) post- construction treatment
(A) pre – construction treatment
this treatment is started right at the initial stage of
construction of building. this treatment can be divided into
three operation.
(1) site preparation
(2) soil treatment
(3) structural barriers

7. (B) Post – construction treatment :
It is a maintenance treatment for those buildings which are
already under attack of termites.
It is essential to carry out inspection to estimate the
magnitude of spread of termites in the building and to detect
the points of entry of termites in the building . these points
may be in near vicinity of columns, basement , lavatories ,
leaking pipes , drains etc.
wherever these shelter tubes are detected, these should be
destroyed after injecting anti – termite emulsion through
these. To prevent the entry of termite through voids in masonry
, 12 mm dia. Holes are drilled at 30 cm cc at downward angle
of 45 from both the sides of walls at plinth level and chemical
emulsion is pumper into these hole under pressure. These
holes are then sealed.

9. JUNCTION OF THE WALLAND FLOORS
• continuity of vertical chemical barrier on inner wall surface
from ground level to finishled floor level is required.
Treatment shall be carried out by ,
• placing a channel of 30 30 mm at all junctions of wall and
columns with floor before sub grade is laid.
• Make holes using 12mm dia rod@ 150mm cc and
breakup the earth up to ground level.
• Pour chemical emulsion into the holes @ 7.5 lit sqm.
• Tamp back the soil into the channel and consolidate the
earth.

11. MATERIALS
1. Chloropyriphos 20% EC bearing ISI certification.
2. Dilute 1 part of chloropyriphos 20% EC with 19 part of water to get 1%
emulsion.
3. Indian pest control association approved chemical shall be used.
4. Contractor shall submit purchase vouchers to EIC for verification.

12. SITE PREPARATION
1. Remove all organic matter , construction debris, rubbish etc.
2. Water logged foundation shall be treated after drying when the
soil is absorbent.
3. For low penetration and slopping sites , surface to be scarified
75mm depth.
4. Complete all cutting , excavation , leveling & grading before
starting treatment.

13. MODE OF APPLICATION AND RATE OF
APPLICATION
1. Chemical emulsion should be applied uniformly by sprayers.
2. Specified rates should be applied at each stages of treatment.
3. Pressure pumps and sprayers of adequate capacity shall be
used for proper penetration of chemical.

14. Thank you