Sectional reinforcement drawing for an underground water reservoir, detailing the structural layout for the top slab, base, and side walls. The file provides specific rebar schedules using 10mm and 12mm diameter steel with center-to-center spacing ranging from 5 to 10 inches. It includes structural dimensions for a tank with a 20-foot internal span and a 7-foot height.
Material specifications define a concrete mix of 1:1.5:3 using brick chips with a minimum strength of 3000 psi and 60-grade steel reinforcement. Construction details cover waterproofing measures such as 3/4-inch thick plaster with Plastocrete-Super admixture and a two-layer polythene sheet base. The drawing also shows a 5-inch exterior brick wall, 5-inch slab thickness, and specific clear cover requirements for water and earth faces.
