Kolkata Port Trust Tender

Polymer Modified Mortar (RCC) :Polymer Modified Mortar for Cracked & Spalled Portions: Supplying & applying the PMM to build the profile of structural members upto 25 mm average depth by using emulsified SBR latex (STP/BASF/SIKA/Fosroc or Equivalent) conforming to ASTM C-1059-13 Type-II in damaged areas (1 Cement-3 part coarse graded sand + 20 % latex by weight of cement) with 0.35 w/c ratio, in 15-20 mm thick layers by applying bond coat between successive/each layers including levelling & profiling complete as per directions and approval of Engineer-In-Charge. Proper curing to be done for the repair work. Gunny bags may be used for effective curing. Polypropylene fibres ( Recron/Propex or Equivalent) to be added to reduce shrinkage. For measurement, patch area of repair work will be taken. This item includes the cost of bonding agent to be applied in between the layers of repair mortar. Cement used shall satisfy requirements of approved brand and grade by EIC.

Polymer Modified Mortar(Brick work):Polymer Modified Mortar for Plastering: Supplying & applying the PMM to build the profile of structural members upto 12 mm average depth by using emulsified SBR latex (STP/BASF/SIKA/Fosroc or Equivalent) conforming to ASTM C-1059-13 Type-II in damaged areas (1 Cement-3 part coarse graded sand + 20 % latex by weight of cement) with 0.35 w/c ratio, in one layer by applying bond coat between successive/each layers including levelling & profiling complete as per directions and approval of Engineer-In-Charge. Proper curing to be done for the repair work. Gunny bags may be used for effective curing. Polypropylene fibres ( Recron/Propex or Equivalent) to be added to reduce shrinkage. For measurement, patch area of repair work will be taken. This item includes the cost of bonding agent to be applied in between the layers of repair mortar. Cement used shall satisfy requirements of approved brand and grade by EIC.

Demolishing RCC chajja manually/by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in – charge