| 再生粗骨料混凝土强度公式研究 |
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| 引用本文： | 曾力,赵伟.再生粗骨料混凝土强度公式研究[J].混凝土,2009(5). |
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| 作者姓名： | 曾力 赵伟 |
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| 作者单位： | 武汉大学,水资源与水电工程科学国家重点实验室,湖北,武汉,430072 |
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| 摘 要： | 重点研究了水灰比和再生粗骨料强度变化对再生粗骨料混凝土强度的影响规律.结果表明:再生粗骨料混凝土(RGC)和天然粗骨料混凝土(NGC)一样与灰水比(C/W)均呈良好的线性关系,仍遵循水灰比定则;同水灰比时,再生粗骨料混凝土(RGC)抗压强度与天然粗骨料混凝土(NGC)相当或略高(主要是在低水灰比时);再生粗骨料强度对混凝土强度有一定影响,即同水灰比时,再生粗骨料强度越高,混凝土的强度也越高,因此,再生混凝土的水厌比定则应加一修正系数;由试验结果得到的再生粗骨料混凝土水灰比定则公式对其配合比设计及强度推算具有实际意义.
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| 关 键 词： | 再生骨料混凝土 水灰比 强度 配合比 |
Strength formula of recycled coarse aggregate concrete |
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| ZENG Li,ZHAO Wei.Strength formula of recycled coarse aggregate concrete[J].Concrete,2009(5). |
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| Authors: | ZENG Li ZHAO Wei |
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| Affiliation: | State Key Laboratory of Water Resources and Hydropower Engineering Science;Wuhan University;Wuhan 430072;China |
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| Abstract: | The law was focused on how the changes of water-cement ratio and strength of recycled coarse aggregate affected the strength ofrecycled coarse aggregate concrete.The results indicated that recycled coarse aggregate concrete(RGC)as well as natural coarse aggregate concrete(NGC) showed a good line arrelation ship with cement-water ratio(C/W),and still followed the Bolomey's formula;with the same water-cement ratio,the compressive strength of RGC was equivalent to NGC,or slightly higher(mainly in the low water... |
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| Keywords: | recycled aggregate concrete water-cement ratio strength mix proportions |
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