Antitermite treatment during backfilling
1) Antitermite solution being highly poisonous as well as inflammable, utmost care shall be taken during their handling. Wearing of hand gloves to avoid skin contact as also wearing of masks to avoid inhalation is recommended.
2) During backfilling operation antitermite treatment for backfill shall start when the backfill has reached a level of 500 mm below ground level. Treatment shall be given for every layer of backfill there above as under:
a) Chemical emulsion shall be sprayed around all buried concrete members / masonry (surface) after each backfill layer is compacted.
b) While spraying, emulsion shall be directed towards concrete members / masonry surfaces. Rodding shall be done close to members treated by inserting 12mm MS rods at 150mm c/c and about 300mm deep. Rods shall be moved backward and forward in a direction parallel to treated surfaces to ensure proper penetration and mixing of chemical with the backfill soil.
1) Antitermite solution being highly poisonous as well as inflammable, utmost care shall be taken during their handling. Wearing of hand gloves to avoid skin contact as also wearing of masks to avoid inhalation is recommended.
2) During backfilling operation antitermite treatment for backfill shall start when the backfill has reached a level of 500 mm below ground level. Treatment shall be given for every layer of backfill there above as under:
a) Chemical emulsion shall be sprayed around all buried concrete members / masonry (surface) after each backfill layer is compacted.
b) While spraying, emulsion shall be directed towards concrete members / masonry surfaces. Rodding shall be done close to members treated by inserting 12mm MS rods at 150mm c/c and about 300mm deep. Rods shall be moved backward and forward in a direction parallel to treated surfaces to ensure proper penetration and mixing of chemical with the backfill soil.
c) Recommended dosage is 7.5 litres per sq m of vertical area of concrete members / masonry surfaces in
contact with the soil. However, dosage prescribed by manufacturer shall be followed.
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