Effects of Woven Fabric Geometry on the Bonding Performance of Cementitious Composites

Advanced Cement Based Materials Pub Date : 1998-01-01 DOI:10.1016/S1065-7355(97)00012-6

Alva Peled , Arnon Bentur , David Yankelevsky

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引用次数: 79

Abstract

The effect of the geometry of woven fabrics on the bond between monofilament polyethylene yarns and cement matrix was studied in the present work. The fabrics were all plain weave, with varied fills density: 5, 7, or 10 fills per cm; the warps’ density was kept constant at 22 warps per cm. The interfacial bond was evaluated by pullout tests. To characterize the influence of the fabric’s geometry on bond performance, the influence of different parameters of the fabric’s geometry that may affect bond were separated: (1) pullout of a single crimped yarn untied from the fabric to characterize the influence of the shape of the individual crimped yarn; (2) pullout of a single yarn from free fabric (not embedded in the cement matrix); and (3) pullout of a yarn from a fabric embedded in the cement matrix. Straight yarns were also tested for comparison. It was found that the woven fabric provided a considerably better bond to the cementitious matrix than the bond of a single straight yarn. The crimped geometry of the yarn in the fabric was found to have a significant influence on increasing the bond between the woven fabric and the cementitious matrix.

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织物几何形状对胶凝复合材料粘接性能的影响

本文研究了机织织物的几何形状对单丝聚乙烯纱线与水泥基体结合的影响。织物均为平纹织物，填充密度各不相同:每厘米5、7或10填充;经纱的密度保持在每厘米22条。通过拉出试验对界面结合进行了评价。为了表征织物几何形状对粘合性能的影响，分离了织物几何形状中可能影响粘合的不同参数的影响:(1)从织物上抽出单根卷曲纱，表征单根卷曲纱形状的影响;(2)从游离织物(未嵌入水泥基体)中抽出一根纱线;(3)从嵌入水泥基体的织物中抽出纱线。直纱也进行了对比试验。结果发现，机织织物与胶凝基质的结合比单根直纱的结合要好得多。纱线在织物中的卷曲几何形状对增加织物与胶凝基质之间的结合有显著影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Advanced Cement Based Materials

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