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首页> 外文会议>International RILEM Conference on Microbial Impact on Building Materials; Sep 8-9, 2003; Lisbon, Portugal >ALTERATION OF CONCRETE MICROSTRUCTURE BY BIODETERIORATION MECHANISMS
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ALTERATION OF CONCRETE MICROSTRUCTURE BY BIODETERIORATION MECHANISMS

机译：通过生物破坏机理改变混凝土的微观结构

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摘要

Among the different mechanisms of concrete deterioration, biodeterioration is one of the most recently observed. The research on this phenomenon is very complex, and requires multidisciplinary studies as well as knowledge of different areas, such as Materials Engineering, Chemistry, Geology, and Microbiology. In order to best understand the mechanism, it is necessary to know the concrete's characteristics, especially its mineralogical constitution, its microstructure, and its physical, mechanical, and mainly chemical behaviour. The first part of this paper describes the characteristics of the concrete, including its microstructure and cement hydrates. An example of the impact of colonisation by Cladosporium sphaerospermum fungus on the microstructure in the mortar phase of a normal concrete is presented. The techniques used for inoculation and conservation of the samples, as well as for an analysis of the microstructure of the mortar are described.
机译：在混凝土劣化的不同机制中，生物恶化是最近观察到的一种。关于这种现象的研究非常复杂，需要多学科研究以及不同领域的知识，例如材料工程，化学，地质学和微生物学。为了最好地理解其机理，有必要了解混凝土的特性，特别是其矿物学组成，其微观结构以及其物理，机械和主要是化学行为。本文的第一部分描述了混凝土的特性，包括其微观结构和水泥水合物。提出了一个示例，该示例由球形芽孢杆菌真菌定殖对普通混凝土砂浆相中的微观结构产生影响。描述了用于接种和保存样品以及分析灰浆的微观结构的技术。

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