Drainage Works Tenders

Taking down existing sunken portion treatment by demolition of old concrete and tiles and carry out the sunken treatment as in following steps given below and as directed by the Engineer-in-charge :- (a) S&F drainage spout pipe GI 40 mm dia bore light grade upto outside of outer wall (Approx 450 mm to 600 mm long) and WHB pipe 40 mm dia from bottom of WHB to Floor trap as required at site. (b) M&L PCC 1:1.5:3 type B-0 (using 12.5mm graded stone agg), 50 mm thick laid in slope towards drainage out spout pipe mixed with waterproofing chemical as per manufacturer instructions of MAKE :FOSROC/SIKA/Pidilite/STP. Khurra 150mmx150mm (min) at appropriate location for free flow (of leaked water if any) towards drainage spouts shall be provided integrally while laying PCC.Fixing of spout shall be done with same PCC as in this item. (c) M&L18 mm thick cement platster in CM 1:3 on vertical faces mixed with water proofing chemical of MAKE : 301 Pidicrete URP of Dr Fixit or other techno commercially Equivalent make of SIKA/ Pidilite/FOSROC/STP (d) Item no 94 (c) shall be executed while concrete is green as per item no 94(b) above and proper curing and ponding test shall be done before laying drainage/water supply pipes upto the entire satisfaction of Engineer in charge. (e) Applying two coats of SIKA TOP seal 107 of SIKA or other techno commercially Equivalent make of FOSROC /Pidilite/Dr Fixit/STP on vertical as well as horizontal surface. (f) Drainage and water supply pipe if required & test for leakage/sanitary pipes and shall be laid to slope and a clear gap underneath the pipes shall be made available by providing suitable cement concrete blocks.

[18.40]Supplying and laying of drainage composite for use behind walls, between two different fills, alongside drains of road, below concrete lining of canals etc. Geocomposite for planar drainage, realized by thermo bonding a draining core in extruded monofilaments with two filtering nonwoven geotextile that may also be working as separation or protecting layers. The draining three dimensional core will have a “W” configuration as longitudinal parallel channels. Minimum thickness to be 7.2mm, with two filtering UV stabilized polypropylene nonwoven geotextile of minimum thickness of 0.75mm characteristic opening size (O90) of 110 micron and tensile strength of 8.0 kN/m that will be working as separation or protecting layer, Geocomposite having in plane flow capacity of 2.1 L / (m.s) at hydraulic gradient of 1.0 and 20 kPa pressure and tensile strength of 18 kN/m , with mass per unit area of 740 gsm, supplied in the form of roll for easy transportation to site of work as per detailed specification all complete as per directions of Engineer in charge. [Through Rate]

[18.40]Supplying and laying of drainage composite for use behind walls, between two different fills, alongside drains of road, below concrete lining of canals etc. Geocomposite for planar drainage, realized by thermo bonding a draining core in extruded monofilaments with two filtering nonwoven geotextile that may also be working as separation or protecting layers. The draining three dimensional core will have a “W” configuration as longitudinal parallel channels. Minimum thickness to be 7.2mm, with two filtering UV stabilized polypropylene nonwoven geotextile of minimum thickness of 0.75mm characteristic opening size (O90) of 110 micron and tensile strength of 8.0 kN/m that will be working as separation or protecting layer, Geocomposite having in plane flow capacity of 2.1 L / (m.s) at hydraulic gradient of 1.0 and 20 kPa pressure and tensile strength of 18 kN/m , with mass per unit area of 740 gsm, supplied in the form of roll for easy transportation to site of work as per detailed specification all complete as per directions of Engineer in charge. [Through Rate]

providing &fixing of PVC Pipes for drainage ,severage,rain water flow pipe etc including labour &material costs complete job in all heights(LMR) 4' dia

Laying at or near ground level old kerb stones of all types in position to the required line, level and curvature, jointed with cement mortar 1:3 (1 cement : 3 coarse sand), including making joints with or without grooves (thickness of joints, except at sharp curve, shall not be more than 5 mm), including making drainage opening wherever required etc. complete as per direction of Engineer-in-charge. (Length of finished kerb edging shall be measured for payment). (Old kerb stones shall be supplied by the department free of cost)

M&L for Providing and laying at or near ground level factory made kerb stone of M-25 grade cement concrete in position to the required line, level and curvature, jointed with cement mortar 1:3 (1 cement: 3 coarse sand), including making joints with or without grooves (thickness of joints except at sharp curve shall not to more than 5 mm), including making drainage opening wherever required complete all as spd and as directed.