废石粉-锰渣微粉制备自流平砂浆的试验研究  

Experimental study on self-leveling mortar prepared by waste stone powder and manganese slag

作　　者：陈平[1,2,3] 张路辉 刘荣进[1,2,3] 赵艳荣[1] 韦家崭[1] 屈卫杰 

机构地区：[1]桂林理工大学材料科学与工程学院,广西桂林541004 [2]有色金属材料及其加工新技术省部共建教育部重点实验室,广西桂林541004 [3]广西建筑新能源与节能重点实验室,广西桂林541004

出　　处：《混凝土》2016年第11期116-118,122,共4页Concrete

基　　金：国家自然科学基金青年基金(51202039);广西自然科学基金面上项目(2014GXNSFAA118314)

摘　　要：将废石粉和锰渣用于制备自流平砂浆,研究了两者掺量对自流平砂浆的性能影响。试验表明:废石粉替代河砂在20%以下时,砂浆流动度及力学性能均有所提高。锰渣替代水泥比例在20%以下时,砂浆流动度有所提升,但是经时损失较大,随着锰渣掺量增加砂浆强度下降,但是28 d强度下降不如24 h强度明显,通过掺入废石粉可改善锰渣带来的不利影响。Waste stone powder and manganese slag were used to prepare self- leveling mortar, the effect of dosage on the property was studied.The result show that waste stone powder can enhance the fluidity and strength of mortar when the dosage is less than 20% .man- ganese slag can enhance the initial fluidity of mortar when the dosage is less than 20%,but the fluidity loss is big.The strength will fall with the dosage of manganese slag increasing, comparing to 24 h strength, fall range of 28 d strength is smaller, by mixing waste stone powder, the problem can be avoided.

关 键 词：自流平砂浆 废弃石粉 锰渣 力学性能 流动度 

分 类 号：TU528.041[建筑科学—建筑技术科学]