repair work for govt.sr. secondry school - negala, block - jhonthari - dismantling stone slab/ terrazo chip flooring laid in cement mortar including stacking of serviceable material and disposal of unserviceable material within 50 meters lead. 2 providing and laying cement concrete including curing, compaction etc. complete in retaining walls, return walls, walls (any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks, plain window sills, fillets, levelling course etc up to floor five level excluding the cost of centering and shuttering.m15 grade nominal mix 1: 2: 4 (1 cement : 2 coarse sand : 4 graded stoneaggregate 20mm nominal size).(levelling coarse) 3 providing & laying broken glazed titles on roof ( broken glazed tilesnot less than 9 kg/sqm) on top of hot bitumen @ 1.7 kg/sqm. (1.40 kg ofvg-40 (30/40 )grade and 0.30 kg/sqm. ofvg-10 (80/100) grade) and joints filled with cement mortar 1 :2 (1 cement:2 marble dust mixed with water proofing compund all complete as per direction of engineer-in-charge.