自密实自应力混凝土力学性能及自应力值测定试验研究

发布时间：2018-03-08 02:04

本文选题：自密实混凝土　切入点：自应力混凝土　出处：《硅酸盐通报》2017年09期 　论文类型：期刊论文

【摘要】：试验通过P1、P2型与Z型自密实自应力混凝土进行力学性能比较,研究不同配合比及不同养护条件对自应力值的影响;对三联试模测定的混凝土自应力值和自密实自应力钢管混凝土测定的自应力值进行比较,研究新方法的可行性。结果表明:三种混凝土均能产生较高自应力值,都具有良好的膨胀效果和自密实特点;在同养护条件下,P型混凝土自应力值均比Z型高;其中养护环境对自应力值有较大影响;用三联试模来测定自密实自应力混凝土自应力值是切实可行的。
[Abstract]:By comparing the mechanical properties of P1P2-type and Z-type self-compacting self-stressed concrete, the effects of different mix ratio and different curing conditions on the self-stress value are studied. The self-stress values of concrete measured by triple-test model and those measured by self-compacting self-stress steel tube are compared and the feasibility of the new method is studied. The results show that all three kinds of concrete can produce higher self-stress values. The self-stress value of P type concrete is higher than that of Z type concrete under the same curing condition, and the curing environment has great influence on the self stress value. It is feasible to measure the self-stress value of self-compacting self-stress concrete by triplet test model.
【作者单位】：内蒙古科技大学土木工程学院;包头市建筑设计研究院;内蒙古第三电力建设工程有限责任公司;
【基金】：国家自然科学基金(51268042)
【分类号】：TU528

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