Effect Of Brown Waste Glass Powder On Mortar And Concrete Workability As Well As Strength

Twenty-first century is a world of new materials, the development and utilization of new materials imminent, mixed concrete admixtures in this case should be shipped born. Now all kinds of waste piling up, so the effective use of a variety of waste by the relevant departments. As one of the largest amount of concrete building materials effective solution to this problem, this study explored the incorporation mass of brown sand in plastic waste glass powder, fly ash, coal gangue impact on liquidity and Mortar Strength, and explore the impact of the strength of concrete slump and brown waste glass powder.The study tested the diffusion diameter,the compressive strength and the flexural strength in 7 and 28 days under the standard mixture ratio(450g cement,225 g water,1350 g standard sand).The study used brown waste glass,fly ash powder, coal gangue powder powder respectively to replace 10%,20% and 30% cement according to the quality percentage instead of cement content as the control group. The study compared the difference of the cement paste fluidity and the compressive strength and the flexural strength in 7 and 28 days between the control group and the baseline group under the same mechanism.The test concluded that thecement paste fluidity of the baseline group was greater than the control group, the flexural strength in 7 days had the same effect while it kept basically stable in 28 days. The flexural strength of mortar test blocks which were mixed with 0% to 10% of fly ash and brown waste glass powder in the control group was greater than the baseline group. Under the same dosage, the flexural strength of mortar test blocks mixed with fly ash in 28 days were the largest. The blocks mixed with brown waste glass powder followed while the lowest was the blocks mixed with coal waste. The mortar bending curve of the former and the latter had the same tendency which were quite gentle. The bending curve of coal waste were abrupt. The fluidity of the concrete mixed with fly ash and waste glass powder was slightly less than the baseline group which was conformed to the requirements. The fluidity of the concrete mixed with more than 10% coal gangue was largely difference between two group which was not conformed to the requirements.Many experiments were done in order to verify if the liquidity of brown waste glass powder concrete was suitable to the law of constant water consumption. The baseline group(the broken stone diameter:31.5mm?W/B:0.5,the pebble diameter:40mm,W/B:0.47,sand ratio:33%)increased or decreased 50-100 kg cement per m3 of concrete to compare the difference of the liquidity and the compressive strength of concrete with the control group in which the brown waste glass powderreplaced 10%,20% and 30% cement according to the quality percentage instead of cement content. The test concluded that the liquidity of the broken stone and the pebble concrete were suitable to the law of constant water consumption. The slump of the broken stone control group differed 5mm from the baseline group while it was 5mm in the pebble group.With the content of the mixed brown waste glass increased,compressive strength decreased under the same W/B. When the water-binder ratio was less than 0.5, the compressive strength of concrete in 56 days was greater than the baseline group and the most appropriate was concrete mixed with 20% brown waste glass powder.The most appropriate content of brown waste glass powder was 10%when the plastic water was more than 0.40 while when less than 0.40,the most appropriate content was 20%.