Residual compressive strength of hardened OPC/CAC paste after fire exposure-Reference-Cited by-同舟云学术

Residual compressive strength of hardened OPC/CAC paste after fire exposure

Published:2019-05 Issue:10 Volume:71 Page:548-556
ISSN:0024-9831
Container-title:Magazine of Concrete Research
language:en
Short-container-title:Magazine of Concrete Research

Author:

Zhang Qi¹,Xu Shilang²,Zeng Qiang²

Affiliation:

1. Institute of Advanced Engineering Structures & Materials, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, China (corresponding author: )

2. Institute of Advanced Engineering Structures & Materials, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, China

Abstract

Cementitious fire-retardant coatings are widely used for fire protection of structures. Recently, blended pastes of ordinary Portland cement (OPC) and calcium aluminate cement (CAC) have started to be used as binders in cementitious fire-retardant coatings, but the fire resistance and chemical composition of various OPC/CAC pastes are still not clear. The residual compressive strengths of binary cement pastes with various OPC/CAC ratios after fire exposure were studied in this work. The mineral composition and microstructure of the pastes were characterised by X-ray diffraction and environmental scanning electron microscopy/energy dispersive spectrometry, respectively. It was found that the paste with an OPC/CAC ratio of 60/40 was the most fire-resistant.

Publisher

Thomas Telford Ltd.

Subject

General Materials Science,Building and Construction,Civil and Structural Engineering

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/jmacr.17.00446

Reference27 articles.

1. Structural Fire Safety of Circular Concrete Railroad Tunnel Linings

2. Effect of different inorganic salts/alkali on conversion-prevention in high alumina cement products

3. Reinvestigation of the system C4A.nH2O  C4A.Co2.nH2O

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