Hydration of ordinary Portland cement and calcium sulfoaluminate cement blends

被引：185
|
作者：
Trauchessec, R. [1 ]
Mechling, J. -M. [1 ]
Lecomte, A. [1 ]
Roux, A. [2 ]
Le Rolland, B. [2 ]
机构：
[1] Univ Lorraine, Equipe Mat Genie Civil, Inst Jean Lamour, IUT NB,UMR 7198, F-54600 Villers Les Nancy, France
[2] CTG, Italcementi Grp, F-78931 Guerville, France
来源：
CEMENT & CONCRETE COMPOSITES | 2015年 / 56卷
关键词：
Calcium sulfoaluminate cement; Ordinary Portland cement; Hydration products; Mortar; Free lime; ETTRINGITE; EXPANSION; MECHANISM; SYSTEM; BEHAVIOR; SULFATE;
D O I：
10.1016/j.cemconcomp.2014.11.005
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Ordinary Portland cement (OPC) and calcium sulfoaluminate (CSA) cement are two chemically different hydraulic binders. OPC and CSA cement blends can be used to adjust the binder properties for specific applications. The first part of this article compares the compressive strength and hydration products of three blends (85-15,70-30 and 40-60% of OPC-CSA cement) using two different OPC. CSA cement percentage modifies the hardening speed as well as the hydration mechanisms (hydrates nature and quantity). The composition of OPC has also a significant influence even for the lowest OPC proportion (40% of OPC). In the second part, investigations based on compressive strength and calorimetry analysis indicate that OPC free lime is a key parameter. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：106 / 114
页数：9
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