[6.15.1]reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor four level, excluding cost of centering, shuttering, finishing and reinforcement : 1. 1:1.5:3 (1 cement : 1.5 coarse sand(zone-iii) : 3 graded stone aggregate 20 mm nominal size)