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机构地区:[1]西安理工大学,陕西西安710048 [2]西北工业大学,陕西西安710072 [3]电联工程技术有限公司,浙江杭州310020
出 处:《混凝土》2008年第12期77-78,81,共3页Concrete
摘 要:在相同工作条件下,通过试验研究了新一代水溶性高分子聚合物(WSP)混凝土与普通混凝土、掺加聚羧酸高效减水剂的混凝土以及掺加聚丙烯纤维的混凝土的立方体抗压强度、轴心抗压强度、轴心抗拉强度、劈拉强度、弯曲抗拉强度、弹性模量等。结果表明:WSP具有高效减水作用;WSP聚合物改性混凝土在保证抗压强度的同时,抗折强度有所提高,其综合力学性能良好,大大改善了混凝土的脆性特征;SEM照片分析显示,将WSP加入混凝土基体后,在早期生成纤维状物质,能够从根本上对混凝土进行改性。In the same working condition, the cube compressive strength, axial compressive strength, axial tensile strength, splitting strength, bend flexural strength and elastic modulus test on the new generation water soluble polymer (WSP) concrete, ordinary concrete, polycarboxylate concrete and polypropylene fiber reinforced concrete are researched.The results showed that WSP could reduce the quantitative of the cement ef- fectively;Compared with ordinary concrete, WSP concrete ensured the compressive strength, at the same time, it increased the bending strength. WSP concrete showed good mechanical properties, and greatly improved the concrete characteristics of the brittle.The analysis of scanning electron microscope showed that, with the WSP added to the base concrete, fibrous material was generated in the early stage of the growth of concrete strength, so WSP could made a fundamental modification to the normal concrete. microstructure
分 类 号:TU528.042[建筑科学—建筑技术科学]
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