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首页> 外文会议>Concrete Science and Engineering A Tribute to Arnon Bentur International RILEM Symposium; 20040324; Evanston,IL; US >A COMPARISON OF PROCESSING TECHNOLOGIES FOR THE MANUFACTURE OF TEXTILE CEMENT-BASED COMPOSITES
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A COMPARISON OF PROCESSING TECHNOLOGIES FOR THE MANUFACTURE OF TEXTILE CEMENT-BASED COMPOSITES

机译：纺织水泥基复合材料加工技术的比较

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摘要

Recently there is a growing interest in the use of fabrics as reinforcements for cement composites. This paper compares the effects of two different processing methods (casting versus pultrusion) on the mechanical properties, fabric-matrix bond, and microstructural characteristics of fabric-cement composites. Bonded glass mesh fabrics, woven polyvinylalcohol (PVA), and warp knitted weft insertion polypropylene (PP) fabrics were used in this study. Tensile tests were conducted to study the mechanical performance of the composites. Pullout tests were carried out to examine the bond between the fabric and the cement matrix. A microstructural analysis was conducted and correlated with the mechanical performance of the composite and bonding. The advantages of using the pultrusion process for the production of fabric-cement composites were clearly indicated in this study. Improved mechanical performance was obtained for fabric-cement composites produced with the pultrusion process, especially with fabrics made from multifilament yarns (not impregnated in epoxy) having open junction points (not glued). This improved mechanical performance was explained due to improve bonding, obtained by the impregnation process of the fabric in the cement chamber during the pultrusion process, which helped fill the spaces between the filaments of the bundled yarns.
机译：最近，人们越来越关注将织物用作水泥复合材料的增强材料。本文比较了两种不同的加工方法（浇铸和拉挤成型）对织物-水泥复合材料的机械性能，织物-基质键和微观结构特征的影响。在这项研究中，使用了粘合玻璃网眼织物，机织聚乙烯醇（PVA）和经编织纬插入聚丙烯（PP）织物。进行拉伸测试以研究复合材料的机械性能。进行拉力测试以检查织物和水泥基体之间的粘结。进行了微观结构分析，并将其与复合材料和粘结的机械性能相关联。这项研究清楚地表明了使用拉挤工艺生产织物-水泥复合材料的优势。通过拉挤成型工艺生产的织物-水泥复合材料，尤其是由具有开放结点（未胶合）的复丝纱线（未浸渍环氧树脂）制成的织物，机械性能得到了改善。由于在拉挤成型过程中通过在水泥室中对织物进行浸渍处理而获得的粘合性得到改善，从而改善了机械性能，从而有助于填充成束纱线的长丝之间的空间。

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