半碳化改性秸秆造孔剂对页岩烧结砖的性能研究  

Study on effect of semi-carbonized rice straw as pore former on properties of fired shale bricks

作　　者：汪婷[1] 蹇守卫[1] 马保国[1] 李相国[1] 黄健[1] 谭洪波[1] 

机构地区：[1]武汉理工大学硅酸盐国家重点实验室,湖北武汉430070

出　　处：《砖瓦》2015年第1期5-8,共4页Brick-tile

基　　金：国家科技支撑计划课题(2011BAJ04B01)

摘　　要：秸秆半碳化处理后,作为烧结制品的造孔剂可以制备轻质高强、具有良好保温隔热效果的建筑功能材料。用半碳化秸秆和未经半碳化的秸秆分别作为造孔剂,对比两种造孔剂对多孔烧结砖性能的影响。在相同的烧成制度下,掺加经半碳化处理秸秆的烧结砖试块与掺未半碳化秸秆的试块相比,掺量为20%时,烧成收缩及质量损失分别降低0.6%,0.9%;掺量为15%时,压强为10.3 MPa,满足GB-5101-2003《烧结普通砖》的要求,性能优于未掺半碳化秸秆的试块;而掺入两种造孔剂的试件的气孔率相差无几,为37.2%~43.8%,在相同掺量下,掺加半碳化秸秆的吸水率比掺加未半碳化秸秆降低0.8%,其在烧结砖内所形成的封闭孔数量多。The paper researches and compares the effects of two kinds of pore formers of semi-carbonized rice straw and not semi-carbonized straw on properties of fired shale bricks. The test shows that the semi-carbonized rice straw is better than the not semi-carbonized rice straw, and the fired shale bricks accord with the demands of the standard of GB-5101-2003 fired common brick.

关 键 词：烧结 多孔材料 半碳化秸秆 造孔剂 

分 类 号：TU522.09[建筑科学—建筑技术科学]