摘要
以硫铁矿烧渣为外加剂,水泥熟料、脱硫石膏、粉煤灰为原料,制备复合硅酸盐水泥。以28 d抗压强度为评价指标,选取硫铁矿烧渣掺量、水泥熟料掺量、灰渣比为影响因素,运用Minitab软件进行试验设计,建立响应曲面回归模型,进行响应曲面分析,优化配合比。结果表明,最佳工艺条件为:硫铁矿烧渣掺量为14%,水泥熟料掺量为70%,灰渣比为1.2。在此条件下,试验制得的水泥28 d抗压强度可达48.66 MPa。
Use pyrite cinder as concrete admixtures,and incorporated with portland cement clinker,flue gas desulfurization gypsum andfly ash to prepare composite portland cement.The 28 d compressive strength was used as the evaluation index,mass fraction of pyrite cinder and portland cement clinker,and mass ratio of fly ash to pyrite cinder were selected as experimental factors.The experimental design was made with Minitab soft,the response surface model was established,and the mixture design was optimized.The results showed that the optimum preparation conditions were as follows:the mixing amount of pyrite cinder was 14%,the mixing amount of Portland cement clinker was 70%,and the mass ratio of fly ash to pyrite cinder was 1.2.Under these conditions,28 d compressive strength of composite Portland cement could reach 48.66 MPa.
作者
李勇辉
陈德霞
先元华
钟意
吴修洁
Li Yonghui;Chen Dexia;Xian Yuanhua;Zhong Yi;Wu Xiujie(College of New Materials and Chemical Energy,Yibin Vocational&Technical College,Yibin,Sichuan 644000;Sichuan Province Key Laboratory of Higher Education Institutions for Comprehensive Development and Utilization of Industrial Solid Waste in Civil Engineering,Panzhihua,Sichuan 617000;Chongqing Economy and Trade Sccondary Vocational School,Chongqing 402160;College of Architecture and Environment Engineering,Yibin Vocational&Technical College,Yibin,Sichuan 644000)
出处
《非金属矿》
CSCD
北大核心
2021年第5期100-102,106,共4页
Non-Metallic Mines
基金
宜宾职业技术学院科研项目(ybzysc19-46)。
关键词
硫铁矿烧渣
复合硅酸盐水泥
固体废物资源化
响应曲面法
配合比设计
pyrite cinder
composite portland cement
resources of solid wastes
response surface methodology
mixture design
