SFC-School Improvement Grant-O and M -2025-26-Providing Paver Block surfaces arrangements at Kalyana Mandabam Middle School in Chinnamanur Municipality

Amount

Earth work exvacation for foundation in all soils and sub soils to full depth as may be directed except in hard rock requiring blasting but inclusive of shoring strutting and baling out wherever necessary and refilling the sides of foundation with excavated earth in layer of not more than 15cm thick well rammed and consalidated and deposing the surplus earth in all places shown by the departmental officers with an initial load and lift etc., as per stanadard specification

Plain Cement Concrete 1:4:8 mix (One Cement, Four Fine Aggregate and Eight Coarse Aggregate) Using 40mm ISS HBG metal for foundation and basement including dewatering if found necessary and laid in layer of not more than 15cm thick and consolidated including all cost conveyance of materials and labour charges etc. complete as per standard specifications and as directed by departmental Engineers(TNBP No.28).

Supplying and erecting steel centering including necessary supports for plane surfaces in foundation and basement for reinforced cement concrete works such as column footings, plinth beam, grade beam, stair case steps, bed blocks etc. which require only normal strutting using M.S. sheets of size 90cm x60cm BG 10 gauge of stiffened with mild steel angles of size 25mm x 25mm x 3mm for boarding laid over silver oak joists of size 10 x 6.50cm spaced at about 90 cm centre to centre and supported by the casurina props of 10cm to 13cm dia spaced at 75cm centre to centre at suitable intervals etc. complying with standard specification. (The payment for centering shall be made only after the concrete is laid. The retrieved materials should be taken back by the contractor) (TNBP No: 30, 44H)

Plain Cement Concrete 1:2:4 (one cement, two fine aggregates and four coarse aggregates) using 20mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges etc., complete as per standard specification

Providing and laying, spreading and compacting graded stone aggregate to Wet mix macadam (WMM) specification including premixing the material with water at OMC in mechanical mix plant carriage to mixed material by tipper to site laying in uniform layers with paver in sub base / base course on well prepared surface and compacting with vibratory roller to achive the desired density complete as per clasue 406 of MORTH specifications.

Supplying and laying Rubberised interlocking Paver block M40 grade Providing and laying of 63mm thick high strength type conforming IS 15658-2006 of rubberized interlocking paver lock to required size as directed by the departmentalofficers of minimum compressive strength of 40N/mm2 in uniform shape of approved make to be laid in flurring bone pattern with stone dust cushion below the uniform shap of approved non skitting surface in the top and the rate including levelling the base preparation of pavers as sub base, stone dust cushion 150mm thick laying out of pavement cut the pieces to fix the edge vibring the pavers,sweeping tranporting loading unloading of laying paver block as per standard specification,.

Provision for GST 18%

K.Vanaraj (BID ID -1436640)