玻璃钢夹砂管树脂砂浆强度优化试验研究

发布时间：2018-06-10 20:13

本文选题：FRPM管 + 夹砂层　；参考：《玻璃钢/复合材料》2017年09期

【摘要】：玻璃钢夹砂管作为一种柔性非金属复合材料,力学性能优良,综合经济效益好,在公路涵洞工程具有广阔的应用前景。由于路面长期受重型车辆荷载作用,对埋地管涵的强度有更高的要求,其夹砂层质量尤为重要,而目前众多企业生产的FRPM管夹砂层均存在问题。通过制作不同级配的试样优化夹砂层强度,分别测试其抗折和抗压强度,并采用体视显微镜分析试样的断面形貌特征。结果表明,第4组级配试样的力学性能最优,其石英砂和树脂粘结状态较好,树脂填充密实,为玻璃钢夹砂管的生产质量控制和在公路涵洞工程上的推广与应用提供科学的依据。
[Abstract]:As a kind of flexible nonmetallic composite material, glass steel sand filled pipe has good mechanical properties and good comprehensive economic benefit. It has a broad application prospect in highway culvert engineering. Because the pavement is subjected to the heavy vehicle load for a long time, the strength of buried pipe culvert is required higher, and the quality of sand layer is especially important. However, there are many problems in FRPM pipe sandwich layer produced by many enterprises at present. The strength of sand layer was optimized by making samples with different gradation, the flexural strength and compressive strength were tested, and the cross section morphology characteristics of the samples were analyzed by stereoscopic microscope. The results show that the mechanical properties of the 4th group graded sample are the best, the bonded state of quartz sand and resin is better, and the resin is filled with dense resin. It provides a scientific basis for the production quality control of glass-steel sand filled pipe and its popularization and application in highway culvert engineering.
【作者单位】：河北工业大学土木与交通学院;北京易华录信息技术股份有限公司;河北水利电力学院;
【基金】：河北省交通运输厅科技计划项目(Y-201628)
【分类号】：TB332;TQ327.1

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