Influence of sand ratio on the workability and strength of concrete with waste glass powder

A detailed research carried out to ascertain the influence of sand ratio on waste glass powder concrete is reported in this paper. Tests were designed to facilitate comparisons between concretes with waste glass powder and concretes without waste glass powder. The replacement level of cement by waste glass powder is 20%. The level of sand ratio is 35%, 39%, 43%, 47%, 51%, respectively. The compressive strength was test at age of 7 days, 28 days, 60 days. The results show that the change trend of waste glass powder is similar to control concrete. It is to say waste glass powder concrete also has a best sand ratio. Compared with the control group concrete, the change trend of slump value and compressive strength of waste glass powder concrete is gentle. The early compressive strength of waste glass powder concrete is reduced. The workability of waste glass powder concrete is improved in some degree at the low sand ratio.