基于工作性能的再生混凝土抗压强度试验研究*
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（漳州职业技术学院， 漳州 363000）［摘要］通过正交试验，采用方差和极差分析了砂率Sp、水胶比β、再生粗骨料替代率βf三个因素对再生混凝土抗压强度及工作性能的影响。研究表明：各因素对再生混凝土坍落度影响大小的顺序为βf＞β＞Sp；各因素对再生混凝土抗压强度影响大小的顺序为β＞βf＞Sp；当再生粗骨料替代率βf=100%、水胶比β为0.50～0.55时，可以配制满足工作性能要求、抗压强度达到C25的再生混凝土。［关键词］再生混凝土; 再生粗骨料; 抗压强度; 坍落度; 正交试验中图分类号：TU528.59 文献标识码：A 文章编号：1002-848X(2014)21-0075-03Experimental study on compressive strength of recycled concrete based on working performanceYe Teng, Xu Yihui, Zhang Jin(Zhangzhou Institute of Technology, Zhangzhou 363000, China)Abstract: The influences of three factors of sand ratio Sp, water cement ratioβand recycled coarse aggregate substitution rateβf on the working performance and strength of recycled concrete were analyzed using variance and range method by the orthogonal test. The test result shows that the impacts of different factors on recycled concrete slump rank in the order ofβf＞β＞Sp, and the impacts on compressive strength of recycled concrete compressive strength rank in the order of β＞βf＞Sp. When recycled coarse aggregate substitution rateβf equals to 100% and the water cement ratioβis between 0.50 and 0.55, recycled concrete can be produced to meet requirements for working performance and reach the compressive strength of C25.Keywords: recycled concrete; recycled coarse aggregate; compressive strength; slump; orthogonal test*福建漳州市自然科学基金（zz2012J08）,漳州职业技术学院科技计划项目(zzy0806)。作者简介：叶腾,副教授,Email：ye_teng@163.com。参考文献［1］PADMINI A K， RAMAMURTHY K， MATHEWS M S. Influence of parent concrete on the properties of recycled aggregate concrete［J］.Construction and Building Materials，2009,23：829-836.［2］VALERIA CORINALEDSI, VIVIANA LETELIER, GIACOMO LETELIER, et al. Behavior of beam-column joints made of recycled-aggregate concrete under cyclic loading［J］.Construction and Building Materials, 2011(25):1877-1882.［3］肖建庄,李佳彬,孙振平,等. 再生混凝土的抗压强度研究［J］. 同济大学学报：自然科学版,2004,32(12):1558-1561.［4］马乐为,罗峥,阎文,等. 再生混凝土配合比设计与抗压强度试验研究［J］. 混凝土,2010(8):142-144.［5］周明辉,李连君. 再生骨料混凝土强度的试验研究与分析［J］. 混凝土,2011(5):99-101.［6］JGJ 55—2011 普通混凝土配合比设计规程［S］.北京：中国建筑工业出版社，2011.［7］张会芝,郑建岚. 再生混凝土抗压强度及工作性能的影响因素分析［J］. 福州大学学报：自然科学版,2012,40(4):508-514.［8］GB/T 50080—2002 普通混凝土拌合物性能试验方法标准［S］.北京：中国建筑工业出版社，2003.［9］GB/T 50081—2002 普通混凝土力学性能试验方法标准［S］.北京：中国建筑工业出版社，2003.
