The Sintering Manufacture Technique of Lightweight Aggregate Made from Mudstone

• Main Authors: YING-AN CHEN, 陳瀅安
• Other Authors: 王金鐘
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/38833792031057876674

碩士 === 正修科技大學 === 營建工程研究所 === 99 === This study is to make use of the treated waste liquid crystal and mudstone display powder, which is combined with swell and flux after made into lightweight granular aggregate of different sizes through the processes of mixing and rotating granulation. The lightweight aggregate are dried in the shade before drying by oven, and sintered. The sintering temperature is set at 800℃, 900℃ and 1000℃, mudstone powder is set to 25% and 35%,swell and flux are set to 3%, 9% and 15%, base mechanics features of light weight aggregate through tests of cylinder pressure, dry unit weight, water absorption and scanning electron microscopy, with discussion made on the impact of the contents of swell and flux, on the cylinder pressure, dry unit weight, water absorption, and physical properties. Experimental results have proven that: (1) if the mudstone powder is 25%, when the vesicant adopts boric acid and sodium carbonate at the fixed content of 3% and that of the fusing agent adds the amount of 3%, 9% and 15%, the cylinder pressure falls between1.4Mpa～18.3Mpa,dry unit weight falls between 0.443g/cm3～1.234 g/cm3, water absorption ranges between 0%～0.121 %.(2) if the mudstone powder adds increase to 35%, when the vesicant adopts boric acid and sodium carbonate at the fixed content of 3% and that of the fusing agent adds the amount of 3%, 9% and 15%, the cylinder pressure falls between 3.0Mpa～17.7Mpa,dry unit weight falls between 0.506g/cm3～1.197 g/cm3, water absorption ranges between 0%～0.118 %. (3) if the mudstone powder uses 25%, when the vesicant adopts boric acid and sodium carbonate adds the amount of 3%, 9% and 15%, the fusing agent of iron oxide and baking soda adds at the fixed content of 3%, the cylinder pressure falls between 0.85Mpa～18.3Mpa,dry unit weight falls between 0.430g/cm3～ 1.144 g/cm3, water absorption ranges between 0%～0.102 %.(4)if the mudstone powder adds increase to 35%, when the vesicant adopts boric acid and sodium carbonate adds the amount of 3%, 9% and 15%, the fusing agent of iron oxide and baking soda adds at the fixed content of 3%, the cylinder pressure falls between 3.0Mpa～17.7Mpa,dry unit weight falls between 0.416g/cm3～1.141 g/cm3, water absorption ranges between 0%～0.095%. (5)The fusing agent of iron oxide has used is clearly a higher cylinder pressure, the sodium carbonate has adopted is better foaming effect, cylinder pressure increases with sintering temperature reduction, increases with the swell and flux usage amount lower. (6)In the 48 ratios, the fusing agent of baking soda has used is clearly a higher dry unit weight, water absorption is lower.