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Creep behaviour of FRP-reinforced polymer concrete

机译:FRP增强聚合物混凝土的蠕变行为

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摘要

Polymer concrete is a kind of concrete where natural aggregates such as silica sand or gravel are binded together with a thermoset resin, such as epoxy. Although polymer concretes are stronger in compression than cementitious concrete, its tension behaviour is still weak. The reinforcement of polymer concrete beams in the tension zone with pultruded profiles made of epoxy resin and glass fibers are a good compromise between stiffness and strength. In this paper it is reported an investigation of the creep behaviour of polymer concrete beams reinforced with fiber-reinforced plastics (pultruded) rebars. Four-point bending creep test were performed. An analytical model was applied to verify the experimental results.
机译:聚合物混凝土是一种将天然骨料(例如硅砂或砾石)与热固性树脂(例如环氧树脂)粘合在一起的混凝土。尽管聚合物混凝土的抗压强度比水泥混凝土强,但其拉伸性能仍然较弱。在拉伸区内用环氧树脂和玻璃纤维制成的拉挤型材加固聚合物混凝土梁,是在刚度和强度之间取得很好的折衷。本文报道了对纤维增强塑料(拉挤)钢筋增强的聚合物混凝土梁的蠕变性能的研究。进行了四点弯曲蠕变测试。应用分析模型来验证实验结果。

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