Mechanical properties of the utilisation glass powder as partial replacement of cement in concrete

Abstract

Waste glass as a partial replacement of the cement can contribute to the sustainable development, environmentally friendly, energy-efficiency and economical in the construction industry. Thus, this paper will discuss the effect of glass powder when partially replaced the cement as 4%, 8%, and 12%. They have been tested for its compressive strength and split tensile up to 28 days of curing. It was expected to undergo pozzolanic reactions with cement hydrates, forming secondary Calcium Silicate Hydrate (C–S–H) once waste glass was milled down to the micro size particles. The results showed that the compressive strength of 4% replacement of glass powder concrete is 40.8 MPa at 28 days of testing which can be classified achieving the objective because higher than conventional concrete. The results indicate that the concrete with waste glass powder was able to increase the workability of concrete and also the compressive strength.