Using the Glass and Rubber waste as Sustainable Materials to Prepare Foamed Concrete with Improved Properties

Abstract

Building materials and technologies in the world have evolved in line with the new requirements for sustainable construction, which have spread throughout the world to reduce damage to the environment and reduce energy consumption, and rely on renewable energy sources to ensure the rights of future generations of environmental resources. This paper aims at identifying the possibility of using recycled materials such as glass powder (windows glass) and rubber wastes (gloves) to produce the foamed concrete as a substitute filler for cement. The samples of foamed were prepared by using two different percentages of foam agent (FA). The use of gloves rubber waste (GV) and glass powder (GP) in this study could enhance the strength by filling the voids in foam concrete. The amount of rubber waste and glass powder used as additive in foam concrete are 1, 3, 5 wt. % of rubber waste and 1, 0.7 wt. % of glass powder. The mix design was set to achieve a target density of 1600kg/m3. The results showed that the optimum compressive strength value is 10.26MPa of water cured sample at 0.8wt. %FA and 0.7wt.%GP but it is 9.26MPa of air cured sample at 1wt.%FA and 0.7wt.%GP. Flexural strength values were 3.79MPa, 3.87MPa of water and air cured samples at 0.8%FA and 0.7%GP while the splitting tensile strength was increased to 1.71MPa, 1.52MPa in both curing methods for the same percentages. The bulk density was decreased with increasing of glass powder and foam agent content. It is found that the best thermal conductivity value is 0.4096(W/m.°c) to achieve appropriate insulation property of the sample contained 1wt. % of each FA and GP. All of the studied properties were increased after adding 1wt. % of gloves rubber waste (GV).