Urgent Structural Strengthening of 1200 mm Dia Conveying Main, at strategically critical locations under Salaulim Water Supply Scheme.

Earthwork in excavation by mechanical means (hydraulic excavator)/manual means in foundation pipeline trenches drain (not exceeding 1.5 m in width or 10 sq.m. on plan) including dressing of sides and ramming of bottoms lift upto 1.5 m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 50 m.;All kinds of soil

Rubble packing with hard laterite stone under floors including watering ramming and consolidating etc. in pipeline trenches and other foundations complete.

Centering and shuttering including struttings propping etc. and removal of formwork for :;vertical surfaces such as retaining walls return walls walls (any thk) including attached pilasters buttresses plinth and string courses fillets etc.

Providing High yield strength steel reinforcement bar (HYSD)/TMT steel reinforcement bar from secondary producers (Confirming to IS 1786 of 1986) for RCC work including bending binding & placing in position in all the floors along with the factory made precast concrete cover blocks of specified sizes whose compressive strength is not less than that of surrounding concrete in the structural member.

Providing and laying in position cement concrete 1:2:4 (1 cement : 2 coarse sand: 4 graded granitic or basaltic stone aggregate 40 m nominal size) excluding cost of centering shuttering and finishing :;In retaining walls return walls(any thk) including attached pilasters columns piers abutments pillars posts struts buttresses string or lacing courses parapets coping bed blocks anchor blocks plain window sills fillets etc upto floor five level.