Modification of the Waste Fluorgypsum and its Comprehensive Utilization with Fly Ash in Concrete

被引：4
|
作者：
Yang, Daowu [1 ]
Yao, Yan [1 ]
Liu, Yi [1 ]
Tong, Haixia [1 ]
机构：
[1] Changsha Sci & Technol Univ, Chem & Biol Engn Inst, Changsha 410004, Hunan, Peoples R China
来源：
FUNDAMENTAL OF CHEMICAL ENGINEERING, PTS 1-3 | 2011年 / 233-235卷
关键词：
Waste Fluorgypsum; Modification; Fly Ash; Concrete; Hydration Heat;
D O I：
10.4028/www.scientific.net/AMR.233-235.2881
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The waste fluorgypsum was modified and its comprehensive utilization with fly ash in concrete was studied. Eight-channel micro-calorimeter (TAM Air) and scanning electron microscopy were employed to study the basic properties and application performance of the modified fluorgypsum. Experimental results indicated that the modifying made the fluorgypsum crystal staggered mutually and improved the strength of the hardened body. The modified fluorgypsum and fly ash could delay reaction of cement hydration and reduce the heat of hydration of cement. When fluorgypsum was added to the cement, the fluorgypsum beared the function of enhancing the early stage compressive strength of concrete.
引用
收藏
页码：2881 / 2884
页数：4
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