Influence of raw materials ratio on performance of permeable bricks made from electric porcelain waste
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The prepared permeable bricks using electric porcelain waste as the main raw material are investigated, which improves theutilization rate of electric porcelain waste, and realizes the organic unity of recycling resource and ecological environmentprotection. The effects of different raw material ratios on the permeability coefficient, apparent porosity, compressive strength,volume shrinkage rate and microstructure properties of electric porcelain waste permeable bricks are investigated. The electricporcelain waste with a ratio of over 85 wt.% have greatly improved the utilization rate of electric porcelain waste. The resultsare shown that the water-to-material ratio or foaming agent content are increased, the porosity and water permeability of theelectric porcelain waste permeable brick are increased, but the compressive strength of the electric porcelain waste permeablebrick is decreased. The 90 wt.% electric porcelain waste, the 3 wt.% kaolin, the 5 wt.% sintering aid, and the 2 wt.% foamingagents are optimum raw materials ratios, the water-to-material ratio for 0.9 and the drying temperature at 40 oC, the sinteringtemperature at 1200 oC and holding time for 1 h are obtained the excellent performance electric porcelain waste permeablebricks. The permeability coefficient is 3.9×10−2 cm/s, the volume shrinkage rate is 37.88%, the compressive strength is 1.146MPa, and the porosity is 79.0%.
Abstract
The prepared permeable bricks using electric porcelain waste as the main raw material are investigated, which improves theutilization rate of electric porcelain waste, and realizes the organic unity of recycling resource and ecological environmentprotection. The effects of different raw material ratios on the permeability coefficient, apparent porosity, compressive strength,volume shrinkage rate and microstructure properties of electric porcelain waste permeable bricks are investigated. The electricporcelain waste with a ratio of over 85 wt.% have greatly improved the utilization rate of electric porcelain waste. The resultsare shown that the water-to-material ratio or foaming agent content are increased, the porosity and water permeability of theelectric porcelain waste permeable brick are increased, but the compressive strength of the electric porcelain waste permeablebrick is decreased. The 90 wt.% electric porcelain waste, the 3 wt.% kaolin, the 5 wt.% sintering aid, and the 2 wt.% foamingagents are optimum raw materials ratios, the water-to-material ratio for 0.9 and the drying temperature at 40 oC, the sinteringtemperature at 1200 oC and holding time for 1 h are obtained the excellent performance electric porcelain waste permeablebricks. The permeability coefficient is 3.9×10−2 cm/s, the volume shrinkage rate is 37.88%, the compressive strength is 1.146MPa, and the porosity is 79.0%.
참고문헌 (23)
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