Hydration of ordinary Portland cement and calcium sulfoaluminate cement blends
Hydration of ordinary Portland cement and calcium sulfoaluminate cement blends
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DOI：
10.1016/j.cemconcomp.2014.11.005
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发表时间：
2015-02-01
影响因子：
10.5
通讯作者：
Le Rolland, B.
中科院分区：
文献类型：
--
作者：
Trauchessec, R.;Mechling, J. -M.;Le Rolland, B.
普通波特兰水泥（OPC）和硫铝酸钙水泥（CSA）是两种化学性质不同的水硬性胶凝材料。OPC和CSA水泥混合物可用于调整特定应用的粘合剂性能。本文的第一部分比较了三种掺量（OPC-CSA水泥的85- 15%、70 - 30%和40-60%）的水泥在两种不同的OPC条件下的抗压强度和水化产物。CSA水泥百分比改变硬化速度以及水化机制（水合物性质和数量）。即使对于最低的OPC比例（40%的OPC），OPC的组成也具有显著的影响。在第二部分中，基于抗压强度和量热分析的研究表明OPC游离石灰是一个关键参数。(C)2014爱思唯尔有限公司版权所有。
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.