Scaling Of Thermal Damage Of Cementitious Materials: Application To Refractory Concrete

A. Menou; G. Mounajed; H. Boussa; Ch. La Borderie; A. Saouab

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Scaling Of Thermal Damage Of Cementitious Materials: Application To Refractory Concrete

机译：水泥质材料热损伤的尺度化：在耐火混凝土中的应用

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The aim of this study is to investigate and to model the damage mechanisms of concrete after exposure to high temperature. The multiphase Digital Concrete Model and the damage model, MODEV, implemented on finite-element software SYMPHONIE, were used simultaneously to model the thermal damage of concrete exposed to high temperature. In order to validate the thermal damage model, an experimental investigation was carried out. The measurement of the mechanical characteristics of 5 cementitious materials, cement paste, mortar, ordinary concrete and 2 HPC concretes were performed by 3-point bending tests after heating/cooling cycles at 393, 523 and 673°K. The experimental tests on the 3 different cementitious materials compared to numerical simulation are presented for temperatures up to 673°K. After the validation of the models, several applications have been investigated, such as fire resistance of refractory concretes.

机译：这项研究的目的是研究和模拟高温后混凝土的损伤机理。同时使用有限元软件SYMPHONIE实现的多相数字混凝土模型和损伤模型MODEV来模拟暴露于高温下的混凝土的热损伤。为了验证热损伤模型，进行了实验研究。在393、523和673°K的加热/冷却循环后，通过3点弯曲测试对5种胶凝材料，水泥浆，砂浆，普通混凝土和2种HPC混凝土的机械特性进行了测量。提出了在673°K以下的温度下，对3种不同胶凝材料进行的实验测试（与数值模拟相比）。在模型验证之后，已经研究了几种应用，例如耐火混凝土的耐火性。

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来源
《High temperature materials and processes》 |2008年第3期|161-173|共13页
作者
A. Menou; G. Mounajed; H. Boussa; Ch. La Borderie; A. Saouab;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类
关键词
thermal damage; high temperature; concrete model; cement paste; refractory concrete; micro-macro;

机译：热损伤;高温;混凝土模型;水泥浆;耐火混凝土;微宏;

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Scaling Of Thermal Damage Of Cementitious Materials: Application To Refractory Concrete

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