丁菁;朱亚光;徐洪坡;徐培蓁;戎丹萍;李磊;

• 1:青岛理工大学土木工程学院
• 2:青岛海尔产城创集团有限公司

摘要(Abstract)：

再生混凝土本构关系的研究是进行再生混凝土结构抗震设计的关键.采用水玻璃浸泡强化再生粗骨料(RCA),制备不同再生粗骨料取代率的再生混凝土,进行立方体抗压强度及单轴受压试验,与天然骨料混凝土(NAC)对比,探讨了水玻璃强化方法和再生粗骨料取代率对混凝土力学性能的影响.结果表明:水玻璃强化方法降低了再生粗骨料的吸水率和压碎指标;强化后的再生粗骨料混凝土应力应变曲线具有更高的弹性模量和峰值应力,但仍低于天然骨料混凝土;水玻璃强化再生粗骨料混凝土的峰值应变呈现先增加后减少趋势;再生混凝土的泊松比保持稳定,应力应变曲线与天然混凝土相似.通过回归分析,提出不同取代率下水玻璃强化再生粗骨料混凝土受压本构方程,方程与试验结果吻合较好.

关键词(KeyWords)： 再生粗骨料;再生骨料混凝土;水玻璃强化;抗压强度;本构关系

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51578342)

作者(Author): 丁菁;朱亚光;徐洪坡;徐培蓁;戎丹萍;李磊;

Email:

DOI:

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