Special repair of small manhole inspection chamber in Canal Colony Sector-16A, Faridabad.

[22.175.1] Constructing masonry Chamber 90x90x100 cm inside, in brick work in cement mortar 1 :4 (1 cement : 4 coarse sand) for sluice valve, with C.I. surface box 100 mm top diameter, 160 mm bottom diameter and 180 mm deep (inside) with chained lid and RCC top slab 1: 2:4 mix (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size ), i/c necessary excavation, foundation concrete 1:5:10 (1 cement: 5 fine sand: 10 graded stone aggregate 40 mm nominal size ) and inside plastering with cement mortar 1 :3 (1 cement : 3 coarse sand) 12 mm thick, finished with a floating coat of neat cement complete as per standard design : With common burnt clay non-modular bricks of class designation 7.5