Experimental Study On The Effect Of Waste Glass Powder Admixture On The Mechanical Properties Of Concrete

In recent years,there were a large number of waste glass products that caused environmental pollution,occupied land resources,and brought inconvenience to people’s lives.thus the problem of waste glass has attracted the attention of the whole society.Using waste glass reasonably could bring the economic benefits of company and society and solve the environmental pollution and play a positive role in environment.Waste glass powder admixture concrete refers to that the concrete prepared by adding glass powder.Over the past decades,many studies have shown that waste glass powder admixture concrete were propitious to reducing resource consumption,reducing the occupation of landfills and saving land.Waste glass powder admixture concrete as a new kind of civil engineering material,which has great evolution potential On the one hand,it can convert waste into profit and improve the environment,on the other hand,it can improve various ability indicators of concrete.developing new concrete,which will bring enormous economic,environmental and social benefits.In this paper,the working ability,cubic compressive strength,splitting tensile strength,axial compressive strength and compressive elastic modulus of waste glass admixture concrete were studied by different glass powder sizes and different volume fractions.The main contents are as follows:(1)Considering the influence of the size and dosage of waste glass powder admixture on the ability of waste glass powder admixture concrete.The results show that adding glass powder can improve the working ability of concrete,increase the collapse degree and have good water retention.(2)The 28 day cubic compressive strength of waste glass powder admixture concrete was studied by changing the size and dosage of waste glass powder admixture.The results show that the compressive strength of concrete mixed with glass powder was higher than that concrete without glass powder.(3)The splitting tensile strength of waste glass powder admixture concrete was tested considering the change of particle size and dosage of waste glass powder admixture.The results show that with the increase of glass powder content,which lead to the splitting tensile strength of concrete decreases continuously and the tension-compression ratio decreases.(4)By changing the particle size and the dosage of the waste glass powder admixture,the axial compressive strength test of the waste glass powder admixture concrete is studied,and the compressive strength and axial center of the concrete cube after the glass powder is mixed.The relationship between compressive strength was analyzed.The results show that the axial compressive strength of concrete after mixing with glass powder is higher than that of the benchmark group.(5)The compressive elastic modulus of concrete with waste glass powder admixture was studied considering the change of particle size and dosage of waste glass powder admixture.The results show that the elastic modulus of concrete increases in varying degrees with the increase of glass powder content,and the elastic strength ratio of each group of concrete increases first and then decreases with the increase of glass powder content.