Construction of Computer class room building PUMS Vasistapuram Panchayat Perambalur District CFSIDS 2025-2026 Package No. TN11 02

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand, silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering and baling out water and cleaning and levelling the site etc.,complete a) Footing

Sand Filling Supplying and filling in foundation, basement, etc with sand filling in layers of not more than 15 cm thick well watered, rammed and consolidated etc. complete complying with standard specification and as directed by the departmental officers.

Plain Cement Concrete 1:4:8 (one cement four fine aggregates and eight coarse aggregates) using 40mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges and all incidential charges such as water providing etc., complete as per standard specification

M-25 CONCRETE - Providing and laying in position, standarised design mix M-25 Grade using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 350Kg/m3 and maximum water cement ratio of 0.55, including admixture(plasticiser/super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5.70 cu.m.)940.50Kg of 20mm machine crushed stone jelly and with about (2.80 cu.m.)462.00Kg of 10- 12mm machine crushed jelly and with about (4.25 cu.m.)701.25Kg of sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc and providing fixtures like fan clamps in the RCC floor/roof slabs wherever neccessary without clambing extra, etc. complete complying with standard specification and as directed by the departmental officers. the coarse and fine aggregates to be used should comply with the requierments of IS 383-2016. (No separate payment will be made by the department for the exces usage of materials as per design mix.) Basement

Supplying and erecting steel centering including necessary supports for plane surfaces for Reinforced Cement Concrete works such as column footings, column pedestals, plinth beams, grade beams, staircase steps, etc. which require only nominal strutting using mild steel sheets of size 90cm x 60cm and 10 BG stiffened with welded mild steel angles of size 25mm x 25mm x 3 mm for boarding, laid over silver oak joists of size 10cm x 6.5cm spaced at about 75cm centre to centre or at suitable intervals etc. complete in all floors complying with standard specifcation. (Payment for centering shall be given after the concrete is laid)

For plane surfaces such as RCC floor slab, roof slab, beams, lintels, bed blocks, landing slab, waist slab, portico slabs and beams, etc.

Supplying and erecting centering for sides and soffits including necessary supports and strutting upto 3.29 M height for plane surfaces as detailed below in all floors with all cross bracings using Mild Steel sheets of size 90 x 60 cm and 10 BG stiffened with welded Mild Steel angle of size 25mm x 25mm x 3 mm for boarding laid over silver oak joists of size 10cm x 6.50 cm spaced at abote 90 cm centre to centre and supported by casurina props of 10cm to 13 cm dia spaced at not more than 75 cm centre to centre etc. complete complying with the standard specificaiton. (Payment for centering shall be given after the concrete is laid) For plane surfaces such as rectangular or square RCC columns, sunshades, top and bottom slab of RCC boxing, etc.

Brick work using country bricks of size 83/4"x41/4"x23/4" in cement mortar 1:5 (One cement and five M.Sand) including curing neat finishing, etc., complete complying with standard specifiction.Basement.

Suppling and fabricating and placing in position MS (or) R.T.S. bar for reinforcement to all RCC works as per the design given including cost of steel and binding wire also in all floors.

Plastering with cement mortar (1:5) 12mm ,thick in all floors including cost and conveyance of all materilas to site and labour charges etc,complete as per standard specifications (S.I.306)