Tender For Addition/Alteration And Provision Of Retaining Wall In Trv Area At Icgas Daman; 1 Demolition of Brickwork or stone/ boulder masonry, built in cement mortar or cement lime mortar including all quoins, arches, pillars, etc, but excluding ashlar facings, dressed stonework and precast concrete articles all as specified and directed by Engineer -in-charge 2 Demolition of cement Concrete (unreinforced) in ground floors and pavings exc 15 cm thickness (above ground level) all as specified and directed by Engineer -in-charge 3 Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out hard/dense soil all specified and directed. 4 M&L forReturning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm all as specified. 5 Removing excavated material to a distance n.exc 50m and depositing where directed outside MOD land. Note: It is responsibility of the contractor to get permission from Local Authorities for site of disposal of material. 6 M&L forCement concrete in foundations, filling and mass concrete type D2 (1:4:8) in foundations of bed of drains, filling and mass concreteall specified and directed. 7 M&L for Walling of random rubble, uncoursed well bonded, bedded and solidly hearted as built in Cement mortar 1:4 8 Labour only for Walling of random rubble, uncoursed well bonded, bedded and solidly hearted as built in Cement mortar 1:4, stones retrieved from relevant item above. 9 M&L for Keyed pointing to random or polygonal rubble, uncoursed or brought upto course in Cement mortat 1:4 10 M&L for Providing, cement concrete type B-1, 1:2:4 (20mm graded aggregate) in copings, kneelers, apex stones, bed plates, water troughs and the like including weathering, slightly rounded or chamfered angles and throating, as directed 11 Taking down cement or cement lime plaster, any description on brick or stone walls built in cement or cement lime mortar, etc. including raking out joints, hacking for key, scrubbing down with water, etc. 12 M&L for Pre-cast cement concrete block masonry type C-1, 1:3:6 (20mm graded aggregate) set in cement mortar 1:4 with solid blocks, exc. 10 cm in width and setting in mortar, complete 13 M&L for Rendering 10mm thick in Cement mortar 1:4 on fair faces of brick work or concrete surfaces finished even and smooth (without using extra lime or cement) 14 M&L for Hardcore of broken stone of gauge n exc. 63mm, deposited, spread and levelled in layers n exc. 15cm thick, watered and rammed to a true surface all as specified and directed by Engineer -in-charge 15 M&L for 100mm thick Cement concrete type B- 2, 1:3:6 (40mm graded aggregate) as in sub base to pavement. 16 M&L for Cement concrete work in pavement/ hard-standing of flexural strength 40kg/per square centimetre in field using 400 kg of cement per cubic metre, thickness of concrete 25 cm or less 17 Add/Deduct to item above if Extra/less/ kg of cement used for cubic metre for above item. 18 Finishing surfaces of concrete pavement by brooming complete all as specified and directed. 19 M&L for Forming Contraction (Dummy) joints 65mm deep x 10mm wide, filled with sealing compound Grade A complete 20 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 (1cement: 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. 21 M&L for preparation of new surfaces of wall and priming with one coat of Chalk whiting, on plastered surfaces, preparatory to distempering and applying two coats of cement paint 22 M&L for preparation of old decorated plastered surfaces by completely removing existing treatment of walls, chajjas, parapets by removing all fungus,dirt and loose materials,filling with crack sealing compound of approved make and applying two coat of acrylic exterior paint over a coat of exterior grade primer (Brand Apcolite apex manufactured by Asian paint or equivalent) as per manufacturers instructions and complete all as specified and directed. 23 Supply and Application of 4 Layer SHR Waterproofing Coating System as per manufacturer application procedure on leaking concrete WALL surface by thorough surface preparation with high pressure water jet, having a pressure of min. 125 bars, followed by (a) Opening the cracks, and application of one absorption coat of nano-tech enhanced elastomeric waterproofing (NEEWP) emulsion having UV resistance having min. 50% solids, filling and sealing the cracks, (b) Over coating with 2 Coats of NEEWP+ Cement mixture as waterproofing coat having +450% Elongation followed by curing and (c) Top-coated with 1 protective coat of SHR Coating - pure acrylic based, UV resistant, non-yellowing, bio-organism resistant (anti-fungal, anti-bacterial) conforming to BIS STD IS 17218:2019 with Pull off Adhesion 2.8 Mpa, The material shall must have passed 2000 hrs accelerated durability test, and suitable for all types of cementitious surfaces, white colour, matty finishing, Thickness shall not be les than 120 microns using brush, roller, airless spray gun as applicable. The product should be certified by NABL Approved Lab and application is to be done by company approved applicator only 24 Supply and Application of 5 Layer SHR Waterproofing Coating System as per manufacturer application procedure on leaking concrete roof surface by thorough surface preparation with high pressure water jet, having a pressure of min. 125 bars, followed by (a) Opening the cracks, and application of one absorption coat of nano-tech enhanced elastomeric waterproofing (NEEWP) emulsion having UV resistance having min. 50% solids, filling and sealing the cracks, (b) Over coating with 2 Coats of NEEWP + Cement mixture as waterproofing coat having +450% Elongation followed by curing. (The surface is then to be tested for water tightness with ponding test for min. 2 days) (c) Top-coated with 2 Coats of SHR Coating - pure acrylic based, UV resistant, non-yellowing, bio-organism resistant (anti-fungal, anti-bacterial) conforming to BIS STD IS 17218:2019 with Pull off Adhesion 2.8 Mpa The material must have passed 2000 hrs accelerated durability test, suitable for all types of cementitious surfaces, white colour, matty finishing, Thickness shall not be less than 120 microns using brush, roller, airless spray gun as applicable. The product should be certified by NABL Approved Lab and application is to be done by company approved applicator only
