| 改性混凝土声学参数与应力相关性试验研究 |
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| 引用本文： | 林军志,赵明阶,杨洪武.改性混凝土声学参数与应力相关性试验研究[J].岩土力学,2009,30(Z1):69-74. |
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| 作者姓名： | 林军志 赵明阶 杨洪武 |
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| 作者单位： | 1. 重庆大学 土木工程学院，重庆 400045；2. 重庆交通大学 河海学院，重庆 400074；3. 山东港湾建设有限公司，日照 276826 |
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| 基金项目： | 重庆交通大学省部共建水利水运工程教育部重点实验室开放基金 |
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| 摘 要： | 对掺入不同聚合物乳液的7组21个混凝土试件进行不同荷载条件下的超声波测试，研究了聚合物乳液对混凝土声速和加权谱面积等声学参数与应力相关性的影响。研究表明：纯丙乳液和苯丙乳液能提高混凝土声-应力的敏感性，有机硅砂浆防水剂和聚醋酸乙烯乳液对混凝土声-应力敏感性有弱化作用，丙烯酸酯共聚物乳液对混凝土声-应力敏感性影响不大。
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| 关 键 词： | 聚合物乳液 混凝土 声速 加权谱面积 应力 |
| 收稿时间： | 2009-04-20 |
Experimental research on correlation of acoustic parameters and stress of modified concrete |
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| LIN Jun-zhi,ZHAO Ming-jie,YANG Hong-wu.Experimental research on correlation of acoustic parameters and stress of modified concrete[J].Rock and Soil Mechanics,2009,30(Z1):69-74. |
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| Authors: | LIN Jun-zhi ZHAO Ming-jie YANG Hong-wu |
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| Institution: | 1. College of Civil Engineering, Chongqing University, Chongqing 400045, China; 2. School of River & Ocean Engineering, Chongqing Jiaotong University ; Chongqing 400074, China; 3. Shandong Harbor Engineering Co., Ltd., Rizhao 276826, China |
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| Abstract: | Ultrasonic tests of 21 polymer modified concrete specimens under different loading conditions are completed; and the variations of ultrasonic velocity, weighted spectral area with stress in polymer modified concrete are researched. The research shows that pure acrylic emulsion and styrene-acrylate emulsion can increase the sensitivity of acoustic parameters with stress in concrete; organosilicon mortar naterproof agent and polyvinyl acetate can attenuate the sensitivity of acoustic parameters with stress; and acrylate copolymer emulsion has no effect on the sensitivity of acoustic parameters with stress. |
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| Keywords: | polymer emulsion concrete ultrasonic velocity weighted spectral area stress |
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