干硬性再生混凝土的制备及力学性能试验研究
Research on Preparation and Mechanical Properties of Stiff Recycled Concrete
关键词:
干硬性再生混凝土;正交试验;制备工艺;抗压强度
Key words:
Stiff recycled concrete; Orthogonal experiment; Preparation process; Compressive strength
刊期:
2018 No.4
DOI:
文章编号:
1000-4637(2018)04-102-03
基金项目:
国家自然科学基金项目(51278073);住房和城乡建设部2017年科学技术项目计划(2017-K4-005、2017-K7-002);江苏省高校自然科学研究项目(16KJB560025);扬州市科技计划项目(YZ2015079)。
作者:
许 飞1,2,王 兵1,2,宋鲁光3
单位:
1.扬州市职业大学土木工程学院,225009;2.江苏省建筑新材料新技术研究开发中心,扬州225009;3.常州工学院土木建筑工程学院,213002
摘要
摘 要:为制备干硬性再生混凝土,设计了专用加压成型装置和成型工艺,利用正交试验方法设计配合比,对混凝土不同龄期的抗压强度进行测试。试验结果表明,制备的干硬性再生混凝土试件成型效果理想,且前期强度增长较快,当水胶比取0.3、再生粗骨料取代率取50%、砂率取45%、成型压力取10kPa时,试件的力学性能较优。
Abstract: For the preparation of stiff recycled concrete, a special pressure forming device and preparation process is designed. The method of orthogonal is used to design mixes. The compressive strength of specimen with different ages is tested. The results show that the forming effect of test blocks is good, and the early strength grows faster, when the water-cement ratio is 0.3, the replacement of recycled coarse aggregate is 50%, the sand rate is 45%, the molding pressure is 10kPa, the mechanical properties of stiff recycled concrete are better.
结论
参考文献
引用本文
许飞,王兵,宋鲁光.干硬性再生混凝土的制备及力学性能试验研究[J].混凝土与水泥制品,2018(4):102-104.
XU F,WANG B,SONG L G.Research on Preparation and Mechanical Properties of Stiff Recycled Concrete[J].China Concrete and Cement Products,2018(4):102-104.
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