低等级粉煤灰-高硅矿石复合掺合料制备及性能  

Preparation and Properties of Compound Mineral Admixtures with Low Grade Fly Ash and High Silicon Minerals

作　　者：赵杰 ZHAO Jie(Liangshan Rui-Hai Industrial Co.,Ltd.,Gangcheng Group Metallurglcal Slag Utilization Branch,Xichang Sichuan 61500,China)

机构地区：[1]钢城集团凉山瑞海实业有限公司,四川西昌615000

出　　处：《西昌学院学报（自然科学版）》2018年第2期17-20,共4页Journal of Xichang University(Natural Science Edition)

基　　金：四川省教育厅科技成果转化重大培育项目(15CZ0024);西昌市技术研究开发与推广应用项目(17JSYJ07);西昌学院"两高"项目(LGZ201733)

摘　　要：矿物掺合料已经成为现代混凝土不可或缺的重要原材料之一,限于环保要求,目前普遍使用的矿渣粉和粉煤灰等掺合料面临资源短缺及价格上涨问题。为开拓矿物掺合料新市场,提出以低等级粉煤灰和高硅矿石制备混凝土用复合掺合料,研究复合掺合料各项性能并探索其技术可行性。研究结果表明:低等级粉煤灰和高硅矿石粉复合,能够调节复合掺合料的化学组成,使之满足于相关标准需要;但是利用低等级粉煤灰和高硅矿石粉制备的复合掺合料的工作性和力学性能基本介于低等级粉煤灰和高硅矿石粉之间,两者性能和功能叠加效应并不明显。Mineral admixtures have become one of the most important raw materials in modern concrete.But the slags and fly ashes which were widely appllied in concrete are facing resource shortage and rising prices.In this paper,low-grade fly ash and high silicon minerals were used as raw materials to prepare the compound mineral admixtures for concrete.And the composition and properties of the prepared compound mineral admixtures have also been studied.The results showed that the compound of low-grade fly ash and high silicon mineral powders could effectively adjust the composition of compound mineral admixtures,which would make it meet the requirement of relevant standards of fly ash and compound mineral admixture.However,the workability and mechanical properties of compound mineral admixtures were somewhere between low-grade fly ash and high silicon mineral powders.And no obvious performance and functional superposition effect were observed.

关 键 词：低等级粉煤灰 高硅矿石 复合掺合料 性能 

分 类 号：TU528.041[建筑科学—建筑技术科学]