废弃钢化玻璃微粉作矿物掺合料的分析-材料科学与工程专业论文.docxVIP

重庆大学 重庆大学硕士学位论文 英文摘要 PAGE PAGE VI ABSTRACT With the rapid economic development, glass has been widely applied in our daily lives, which produce large amounts of waste glass. Only a small amount of waste glass has been fully reused. Typically, waste glass is buried in the land. As the glass component in the landfill is difficult to decompose. This will not only result in a waste of resources, but also the destruction of farmland, destroying the environment. Today, concrete is the worlds largest consumption building material. To apply waste glass to the cement concrete is one of the important means to deal with waste glass. According to previous studies, applying waste glass to the concrete as aggregate caused Alkali-silica Reaction, most of which lead to alkali - silicate expansion hazards. Nevertheless, waste glass pulverized into powder, the powder has pozzolanic activity, which will improve the compacting strength of the concrete. At the same time, the finely grounded glass powder also inhibits the alkali-aggregate reaction. The chemical composition of tempered glass is similar to flat glass, and therefore, this thesis study the applying of tempered glass powder into the cement paste and mortar as mineral admixture. And study the feasibility of the tempered glass powder used as mineral admixture. Applying of tempered glass powder into the cement concrete has better social, environmental and economic benefits. This paper respectively grinds the crushed tempered glass which size is 12mm for 1h, 2h and 3h to get three kinds of glass powders of different fineness. To measure the density of the specific surface area, particle size distribution and other characteristic parameters of tempered glass powder. The tempered glass partly replaces the cement as mineral admixtures to make cement pastes and cement mortars then measure the strength of the pasts and mortars on the coordinate age. Mainly study the content and fineness of the tempered glass powder, the curing time