宏观裂缝混凝土中表观气体渗透率的测定

Pierre Rossi

工程(英文) ›› 2022, Vol. 17 ›› Issue (10) : 93 -98.

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工程(英文) ›› 2022, Vol. 17 ›› Issue (10) : 93 -98. DOI: 10.1016/j.eng.2020.11.008
研究论文

宏观裂缝混凝土中表观气体渗透率的测定

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Determination of the Apparent Gas Permeability in a Macrocracked Concrete

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摘要

本文报道了一项旨在测定开裂混凝土表观气体渗透率的实验研究分析。由于难以对气体渗透率进行可靠的实验测试,国际文献中缺乏对这一问题的研究。本研究的主要目的是提供新颖可靠的实验结果,并提出表观裂缝渗透率演化与表观裂缝张开度之间的解析函数。考虑Poiseuille 定律,这些函数似乎是相关的。

Abstract

This paper reports on analysis of an experimental study that aimed to determine the apparent gas permeability in cracked concrete. There is a lack of research on this topic in the international literature, due to the difficulty of performing reliable experimental testing for gas permeability. The principal interest of this work is to present new and reliable experimental results. Analytical functions between the evolution of the apparent crack permeability and the apparent crack opening are also proposed. These functions appear to be relevant in consideration of Poiseuille theory.

关键词

混凝土 / 宏观裂缝 / 气体传输 / 渗透率

Key words

Concrete / Macrocrack / Gas transfer / Permeability

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Pierre Rossi. 宏观裂缝混凝土中表观气体渗透率的测定[J]. 工程(英文), 2022, 17(10): 93-98 DOI:10.1016/j.eng.2020.11.008

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