Urgent Repairs to the Expansion joint of Main Building of District Court Complex at Kadapa.

Brick masonry 230 mm thick for panel walls in super structure, parapet walls with cement mortar (1:8) prop (Cement:sand) using Bricks second class or ground moulded (Non-Modular or traditional size) 23 x 11 x 7 cm from approved source having minimum crushing strength of not less than 3.5 N/sq.mm. including cost and conveyance of all materials like cement, sand, bricks, water etc., to site, cost of excluding seigniorage charges on all materials and all incidental and operational, labour charges like mixing cement mortar, scaffolding charges, constructing masonry, lift charges, curing etc., complete for finished item of work as per SS 504. for:-Brick Masonry in CM 1:8 (Country)

Providing impervious coat to exposed RCC roof slab to required slopes with CM (1:3) prop. 20mm thick (average) mixed with 1 kg of water proofing compound per bag of cement laid over roof slab when it is green, finished smooth with a floating coat of neat cement and thread lining at regular intervals of 45cmx45cm including cost and conveyance of all materials like sand, water proofing compound, water etc., to site, excluding seigniorage charges, sales & other taxes on all materials and operational, incidental, and labour charges for mixing mortar, laying, lift charges, rendering smooth and thread lining, curing including rounding off the wall and slab junction etc., complete for finished item of work. (APSS No. 901 & 903) for:-Impervious coat CM(1:3), 20mm

Preparation of the surface: For existing expansion joint treatment Chipping of the existing treatments over the expansion joints concrete / brick masonry with pneumatic power chiseling equipment and until to achieve the hard mother concrete surface. Chipping and removing of existing bituminous mastic board upto 25mm deep. Duly removing of debris, cleaning of the surface from dirt, dust and other foreign matters

SPECIALISED POLYSULPHIDE SEALANT TREATMENT TO THE EXPANSION JOINTS ON TERRACE:(Size: 25mm x 12mm)Application of one coat of-High performance specially designed SBR latex polymer-based bonding agent– or equivalent mixing with cement as per manufacturers c]. Providing and application of Acrylic Polymer modified reinstatement concrete/mortar admixture with - to finish the damaged edges of joint and making the groove. d]. Providing and fixing of masking tape on top of the joint both sides. e]. Providing and fixing of Back up support material of Polyethelene foam to leave the depth of 12mm on the joint. f]. Providing and application of one coat of polysulphide primer with – Polysulphide primer on inner edge on joints. g]. Providing and application of Two part Polysulphide sealant to a width of 25mm and 12mm depth with -with BS 4254 - 83 or equavalent with putty knife and neat finish. h]. Removing of masking tape and providing and application of two coats of Acrylic elastomeric cementitious coating with - ROOFSEAL PS (Armstrong ) / POWER n SEAL PS (EBT) /NITOSEAL PS 200 (Fosroc)/ ZORISEAL PS (PMCC) / SIKA POLYSULPHIDE (Sika) / WATERSHIELD PS

Plain Cement Concrete (1:3:6) proportion nominal mix (cement: fine aggregate: Coarse aggregate) using 20mm size graded aggregate machine crushed hard granite metal (coarse aggregate) from approved quarry from approved quarry including cost and conveyance of all materials like cement, sand, coarse aggregate, water etc. to site, excluding seigniorage charges, sales & other taxes on all materials and including all charges for mixing, laying concrete, curing etc., complete for finished item of work. (APSS No. 402) for:-Hand Mix-PCC (1:3:6) NOMINAL MIX

Supply of UV resistant multi-wall polycarbonate sheets for roofing over Brick Masonry walls in trianguiar shape so that the entire impervious coat is covered so that therain water flow over the sheets