The influence of the physical and chemical properties of hardened cement paste on the heat-induced explosive spalling of concrete

Jochen Reiners, Jochen Zehfuß, Frank Dehn, Christoph Müller
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Abstract

This paper summarizes the results of two research projects that were carried out between 2016 and 2022 at the VDZ (Verein Deutscher Zementwerke) in Düsseldorf. The objective of the projects was to examine the influence of the cement type as well as the physical and chemical properties of the hardened cement paste on the explosive spalling of concrete in the case of fire. A particular focus was set on studying the way in which the concrete's moisture content contributes to the spalling phenomenon. The findings obtained for the different concretes examined in the dedicated experimental program were evaluated to better explain the mechanisms causing the heat-induced explosive spalling of concrete.

硬化水泥浆的物理和化学性质对混凝土热诱发爆炸性剥落的影响
本文总结了位于杜塞尔多夫的德国水泥协会(VDZ)在2016年至2022年期间开展的两个研究项目的成果。这两个项目旨在研究水泥类型以及硬化水泥浆的物理和化学特性对火灾情况下混凝土爆炸剥落的影响。重点研究了混凝土的含水量对剥落现象的影响。对专门实验项目中不同混凝土的研究结果进行了评估,以更好地解释混凝土受热引起爆炸性剥落的机理。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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