Effects of ordinary Portland cement on the early properties and hydration of calcium sulfoaluminate cement

被引：107

作者：

Zhang, Junjie ^{[1
]}

Li, Guoxin ^{[1
]}

Ye, Wenting ^{[1
,2
]}

Chang, Yuzhen ^{[2
]}

Liu, Qingfeng ^{[1
]}

Song, Zhanping ^{[2
]}

机构：

[1] Xian Univ Architecture & Technol, Sch Mat & Mineral Resources, Xian, Shaanxi, Peoples R China

[2] Xian Univ Architecture & Technol, Sch Civil Engn, Xian, Shaanxi, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 186卷

关键词：

Calcium sulfoaluminate cement; Ordinary Portland cement; Setting time; Strength; Ettringite; Microstructure; WATER STABILITY; SYSTEM; SULFATE; ETTRINGITE; PERFORMANCE; MECHANISMS; ALUMINATE; PRODUCTS; STRENGTH; PHASE;

D O I：

10.1016/j.conbuildmat.2018.08.008

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Ordinary Portland cement (OPC) was used to enhance the early performances of calcium sulfoaluminate cement (CSA), and the hydration process of CSA-OPC composite was researched by XRD, TG, and SEM. Results showed that the rapid setting and high early strength of CSA can be achieved by the addition of 10-20 wt% OPC. The addition of OPC can evidently increase the ettringite content of CSA at early age, and change the morphology of ettringite significantly related to its high pH value. The difference of ettringite from CSA to CSA-OPC composite was mainly contributed to the presence of lime. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：1144 / 1153

页数：10

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