Important points for backfilling

Important points for backfilling

1) Backfilling work shall not start until Site Engineer gives his approval to do so. Material used for backfilling shall be any one or combination of soil types mentioned

Antitermite Treatment to plinth and external perimeter of building

Antitermite Treatment to plinth and external perimeter of building:

1) Treatment shall also be given over the entire plinth area prior to laying PCC. Recommended dosage is 5 litres / sq. m of area to be treated.

Antitermite treatment during backfilling

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.

Post Excavation Procedures

Post Excavation Procedures:

 Antitermite Treatment to sides of excavated pits:

1) Antitermite treatment solution shall be prepared on site by mixing solution mentioned.

2) Antitermite treatment in foundation shall start after site Engineer gives his permission to do so. Treatment shall be complete with treatment of soil underneath the foundation as well as to the sides of the excavated pits to form a total barrier between foundation and excavated pits.

Important Points During Excavation Procedure

During Excavation Procedures:

1) The excavation shall be done to correct lines, dimensions and levels as per drawing. Adequate side slopes shall be maintained during excavation of loose soil to prevent soil from sides of excavated pits from falling back into the pits.

2) Wherever required, proper shoring and strutting shall be provided to maintain and prevent sides of excavations from collapsing.

3) No heavy equipment shall be allowed within 6m from edge of excavation or within a distance equal to depth of excavation, whichever is less.

(part 2) procedure for EXCAVATION & BACKFILLING

shoring & strutting

Excavation:

1) It shall be ensured that all necessary equipments, tools, instruments, material and consumables including temporary facilities like platform, walkways etc. as mentioned are available at site.

2) All skilled / unskilled manpower along with supervisory personnel for carrying out work shall have sufficient experience on similar works.

( PART 2) Excavation and Backfilling with AntitermiteTreatment

Anti termite spraying

B) Water:

By mere observation, water should be clean and free from dirt and organic matter. Waste (treated) water from STP can be considered suitable for compaction of backfill material.