| 基于正交试验的纳米CaCO3再生混凝土抗压强度研究 |
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| 引用本文： | 胡海波,闫春岭,何智海,李增,詹培敏.基于正交试验的纳米CaCO3再生混凝土抗压强度研究[J].混凝土与水泥制品,2020(6):94-97,102. |
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| 作者姓名： | 胡海波 闫春岭 何智海 李增 詹培敏 |
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| 作者单位： | 绍兴文理学院 土木工程学院,312000;安阳工学院 土木与建筑工程学院,455000 |
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| 基金项目： | 浙江省自然科学基金;国家自然科学基金 |
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| 摘 要： | 通过正交试验研究了纳米CaCO3掺量、水胶比、砂率和再生粗骨料掺量对再生混凝土抗压强度的影响。结果表明,影响再生混凝土7 d抗压强度的主要因素是水胶比,而影响再生混凝土14 d和28 d抗压强度的主要因素是再生粗骨料掺量。此外,适量纳米CaCO3能够改善再生混凝土的抗压强度,其对早期抗压强度的提高更加明显。
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| 关 键 词： | 正交试验 纳米CACO3 再生混凝土 抗压强度 |
Study on Compressive Strengths of Recycled Concrete with Nano-CaCO3 Carbonate Based on Orthogonal Test |
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| HU Hai-bo,YAN Chun-ling,HE Zhi-hai,LI Zeng,ZHAN Pei-min.Study on Compressive Strengths of Recycled Concrete with Nano-CaCO3 Carbonate Based on Orthogonal Test[J].China Concrete and Cement Products,2020(6):94-97,102. |
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| Authors: | HU Hai-bo YAN Chun-ling HE Zhi-hai LI Zeng ZHAN Pei-min |
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| Affiliation: | (College of Civil Engineering,Shaoxing University,312000,China;School of Civil and Architectural Engineering,Anyang Institute of Technology,455000,China) |
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| Abstract: | The effects of nano-CaCO3 content,water-binder ratio,sand ratio and recycled coarse aggregate content on the compressive strength of recycled concrete were studied by the orthogonal test.The results show that the main factor affecting 7 d compressive strength of recycled concrete is the water-binder ratio,while the main factor affecting 14 d and 28 d compressive strength of recycled concrete is the content of recycled coarse aggregate.In addition,the compressive strength of recycled concrete can be improved by adding the appropriate amount of nano-CaCO3,and which is more obvious for the early compressive strength. |
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| Keywords: | Orthogonal test Nano-CaCO3 Recycled concrete Compressive strength |
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