| 轻骨料施工预处理方法对高强轻骨料混凝土各龄期强度影响的试验研究 |
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| 引用本文： | 尚培东,董祥. 轻骨料施工预处理方法对高强轻骨料混凝土各龄期强度影响的试验研究[J]. 四川建筑科学研究, 2011, 37(3): 201-204 |
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| 作者姓名： | 尚培东 董祥 |
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| 作者单位： | 1. 福建省金泉建设集团有限公司,福建厦门,361008
2. 福建省金泉建设集团有限公司,福建厦门,361008;南京工程学院建筑工程学院,江苏南京,211167 |
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| 基金项目： | 福建省住房和城乡建设厅科学技术项目(2010K-21); 南京工程学院科研基金项目(KXJ08044) |
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| 摘 要： | 通过试验研究了轻骨料不预湿、浸水预湿、加压预湿、真空预湿等施工预处理方法对高强轻骨料混凝土工作性与各龄期强度的影响。结果表明:较之目前国内常用的浸水预湿法,采用真空预湿法、加压预湿法可更为有效地提高所拌制高强轻骨料混凝土的流动性,对混凝土施工有利;采用加压预湿法会显著降低高强轻骨料混凝土各龄期强度;采用不预湿轻骨料拌制的混凝土28d强度最高;采用真空预湿法、浸水预湿法对轻骨料混凝土后期强度的发展最为有利。
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| 关 键 词： | 轻骨料施工预处理 高强轻骨料混凝土 工作性 强度 龄期 |
Experiment research on lightweight aggregate construction pre-treatment methods' influence on different age strengths of high-strength lightweight aggregate concrete |
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| SHANG Peidong,DONG Xiang. Experiment research on lightweight aggregate construction pre-treatment methods' influence on different age strengths of high-strength lightweight aggregate concrete[J]. Building Science Research of Sichuan, 2011, 37(3): 201-204 |
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| Authors: | SHANG Peidong DONG Xiang |
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| Affiliation: | SHANG Peidong1,DONG Xiang1,2(1.Fujian Jinquan Construction Group Co.,Ltd.,Xiamen 361008,China,2.School of Civil Engineering and Architecture,Nanjing Institute of Technology,Nanjing 211167,China) |
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| Abstract: | The influences of lightweight aggregate construction pre-treatment methods which include no pre-wetting,soaking pre-wetting,pressure pre-wetting,vacuum pre-wetting and so on to workability and different age strengths of high-strength lightweight aggregate concrete were researched.The result indicates that compared with soaking pre-wetting method which is widely used in our country,the methods of vacuum pre-wetting and pressure pre-wetting can better improve the fluidity of fresh concrete,which benefits the ... |
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| Keywords: | lightweight aggregate construction pre-treatment high-strength lightweight aggregate concrete workability strength age |
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