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Mix proportion and properties of fire-resistant wet-mixed high-strength polypropylene fiber-reinforced sprayed polymer cement composites

机译：耐火湿混合高强度聚丙烯纤维增强喷涂聚合物水泥复合材料的配合比和性能

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摘要

This study examined the optimal mix proportions and performance of a fire-resistant wet-mixed high-strength fiber-reinforced polymer cement composite that enhances the fire-resistance of underground structures. A mix ratio was determined through preliminary tests to satisfy the target compressive strength and maintain the minimum thermal conductivity. A mix with 10% silica fume, 30% perlite replacement ratios and 0.2% of polypropylene fiber satisfied the desired standards. The polymer cement composite had high compressive, flexural, and bond strengths of approximately 40,5, and 1.6 MPa, which are sufficient for the surface pressures encountered in road and railway tunnels.
机译：这项研究检查了耐火湿混合高强度纤维增强聚合物水泥复合材料的最佳配合比和性能，该复合材料增强了地下结构的耐火性。通过初步测试确定混合比，以满足目标抗压强度并保持最小导热率。含10％硅粉，30％珍珠岩替代率和0.2％聚丙烯纤维的混合物满足所需标准。该聚合物水泥复合材料具有约40,5和1.6 MPa的高压缩，弯曲和粘结强度，足以应付公路和铁路隧道中遇到的表面压力。

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  • 来源
    《Composite Structures》 |2010年第9期|2166-2172|共7页
  • 作者

    Jong-Pil Won; Sek-Won Choi; Sang-Woo Lee; Chang-II Jang; Su-Jin Lee;

  • 作者单位

    Department of Civil and Environmental System Engineering, Konkuk University, Seoul 143-701, Republic of Korea;

    rnDepartment of Civil and Environmental System Engineering, Konkuk University, Seoul 143-701, Republic of Korea;

    rnDepartment of Civil and Environmental System Engineering, Konkuk University, Seoul 143-701, Republic of Korea;

    rnDepartment of Civil and Environmental System Engineering, Konkuk University, Seoul 143-701, Republic of Korea;

    rnDepartment of Civil and Environmental System Engineering, Konkuk University, Seoul 143-701, Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    fire; mix proportion; polymer cement composite;

    机译：火;混合比例聚合物水泥复合材料;

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