38 :: Certificate in Construction Supervision (CIVIL)
2. Measures taken after completion of construction (Post construction
The termites which are seen in the building generally lives under the ground and
breeds before the commencement of rainy season.
Apart from this, it is also found to be present in the timber, rubber, etc. Some
times before in the past, Aldrine, or DDT were being used for prevention
purposes, but with the observance of bad effect of these two medicines on human
being, the use of Aldrine and DDT have been stopped. Accordingly now a day
following medicines are used:
1. Chloropyriphosh, which is available as Dermit/Dustbin in the market 1%
solution of chlorophos is sprayed in the soil/water. This is very poisonous
substance, hence hand should be properly washed withsoap each time after
2. Apart from dirmat or Dustbun, TC Hepafloor (5% solution) can also be used.
3. The solution of Chlorden (1% solution) can also be used.
6.4 TERMITE TREATMENT BEFORE CONSTRUCTION
Before starting the concreting work in the foundation Dermit solution is sprayed
by hand pump in the foundation soil. This job should not be carried out during
rainy season or when water is present in the foundation trench. This process is
carried out before pouring concrete mix in the foundation trench, in an orderly
fashion in stops.
Fig 6.1 (a)
Foundation of load bearing wall
Fig. 6.1 (b)
Column and Footling
The Dermit solution of appropriate strength should be spread up to 30 cm from
the foundation level to the wall, so that the termite is completely killed. It should
be used at the rate of (@) 5.0 ltr. per sq. m of the area covered.