Development of light-weight precast concrete wall panel product with adding high density foam sheet for thermal insulation

Abstract

This research has objectives to study the production, to find the proper size of steel wire mesh, to test the properties, and to study the implementation of high strength and thermal insulation cement-bonded fiberboard from coconut meal, corncob fibers and steel wire mesh. The mixture ratio of cement-bonded fiberboard included Portland cement type1: sand: coconut meal fiber: corncob fiber: water: calcium chloride equal to 1: 0.2: 0.0125: 0.0375: 0.3: 0.03 by weight and 5 different sizes of steel wire mesh were reinforced. Casted by compression and sharking machine. Tested the properties follow the TIS.878-2537. From the results, 1 mm of diameter and 1” of gab of steel wire mesh (? 1 mm # 1”) was the proper size to reinforce the cement-bonded fiberboard to get highest bending strength. Moreover, this cement-bonded fiberboard can pass the required standard. The high strength and thermal insulation cement-bonded fiberboard from coconut meal, corncob fibers and steel wire mesh has the possibility to construction as exterior building wall.