Specifications Part 1 - Water Supply, Sewerage and Tube Well Works

described in IS 4031 (Part-5) : 1988, have (a) initial setting time of not less than30 minutes and (b) final settings time of not more than 600 minutes15.12.3 53 Grade ordinary Portland cement conforming to IS:269 shall used for variousworks. It should when tested for setting time by the vicat apparatus methoddescribed in IS 4031 (Part-5) : 1988, have (a) initial sating time of not less than30 minutes and (b) final settings time of not more than 600 minutes.15.13 Bricks15.13.1 common burnt clay bricks should be as per IS:1077 classes of common burntbricks used in water supply are as under :-15.13.2. Class: Classes of Common Burnt Clay Bricks:Table No.15.2Class Designation Average Compressivestrength not less thanN/mm²Kgf/cm² (aprox)25 25.0 25020 20..0 20015.13.3 Dimensions:Table No.15.3Length (L) Width (W) Height (H)mm mm mm190 90 90190 90 4015.13.4. Tolerances :18.. For modular sizelength 3720 to 3880 mm (3800 ± 80 mm)Width 1760 to 1840 mm (1800 ± 40mm)Height 1760 to 1840 mm (1800±40 mm)(For 90 mm high bricks)760 to 840 mm (800±40 mm)(For 40 mm high bricks)15.14 Specification for m.s. stop dam shutterStop dam shutter shall be following two types :A. M.S. stop dam shutter (kari shutter)B. M.S. stop dam shutter 8 mm plate (4 fixed sizes)18.. M.S. stop dam shutter (kari shutter)15.14.1 Scope :-It is a fabricated shutter of M.S. sheet & M.S. sections. Used for storing thepost monsoon rain water. Stop dam shutter comprising of MS. Skin plate/M.S.shutter (with frame & rubber seal) and embedded part.15.14 .2 Size :-Generally size of the such stop dam shutter shall be between 0.5 sq.mt. to 3.00sq. mts. According to the specific requirements of the consignee (i.e. Height xUrban Administration & Development Department Page 182