1.河海大学土木与交通学院,江苏 南京 210098
2.郑州大学黄河试验室,河南 郑州 450001
3.重庆大学土木工程学院,重庆 400045
4.宁夏青龙管业集团股份有限公司,宁夏 银川750000
胡钰泉(1991—),男,博士研究生。主要从事混凝土结构耐久性能研究。E-mail: hhhyuquan@163.com
胡少伟(1969—),男,教授,博导。主要从事混凝土损伤断裂与结构安全评价研究。E-mail: hushaowei@cqu.edu.cn
收稿:2021-07-07,
修回:2021-10-19,
纸质出版:2023-06-28
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胡钰泉,胡少伟,李文昊等.养护条件对BCCP抗氯离子侵蚀性能的影响与比较分析[J].防灾减灾工程学报,2023,43(03):559-567.
HU Yuquan,HU Shaowei,LI Wenhao,et al.Influence and Comparative Analysis of Curing Conditions on Chloride Resistance of BCCP[J].Journal of Disaster Prevention and Mitigation Engineering,2023,43(03):559-567.
胡钰泉,胡少伟,李文昊等.养护条件对BCCP抗氯离子侵蚀性能的影响与比较分析[J].防灾减灾工程学报,2023,43(03):559-567. DOI: 10.13409/j.cnki.jdpme.20210707003.
HU Yuquan,HU Shaowei,LI Wenhao,et al.Influence and Comparative Analysis of Curing Conditions on Chloride Resistance of BCCP[J].Journal of Disaster Prevention and Mitigation Engineering,2023,43(03):559-567. DOI: 10.13409/j.cnki.jdpme.20210707003.
通过测试钢筋缠绕预应力钢筒混凝土管道(BCCP)细石混凝土保护层试块在标准养护(S),低压养护(0.7P),蒸汽养护(ZS)和蒸汽‑低压养护(Z0.7P)条件下的氯离子扩散系数、抗压强度和吸水率,研究养护方式对BCCP抗氯离子侵蚀能力的影响,并基于灰色关联分析法,比较各因素的影响程度。结果表明:混凝土的抗氯离子侵蚀能力随着养护龄期的增加而增加,单掺矿粉混凝土始终表现最优,使用高抗硫水泥会降低混凝土本身抗氯能力。低压和蒸汽养护的混凝土在早龄期抗氯能力高于标准养护,但随水化龄期的增长,逐渐低于标准养护。低压不会对蒸养混凝土内部产生损伤,反而会提高混凝土的密实度,因此,在养护龄期14 d以前,扩散系数关系为S>0.7P>ZS>Z0.7P,28 d以后,变为ZS>Z0.7P>0.7P>S;此外,养护气压和养护湿度对混凝土抗氯离子渗透性影响最大,其次是养护温度,养护龄期的影响最小。
The chloride diffusion coefficients, compressive strength, and water absorption rates of fine aggregate concrete cover blocks of Bar-wrapped Cylinder Concrete Pressure Pipes (BCCPs) were examined under standard curing (s), low pressure curing (0.7p), steam curing (ZS), and steam-low pressure curing (Z0.7p) to study the influence of curing methods on BCCP’s resistance to chloride. The influence degree of each factor was compared using grey correlation analysis. Results show that the resistance to chloride ingress of concrete increased with the increase of curing age and the chloride resistance of concrete with single mineral powder demonstrated the best performance. The utilization of high sulfate-resistant cement will reduce the chlorine resistance of concrete. At early stages, the resistance to chloride ingress of concrete cured under low pressure (0.7P) and steam (ZS) was higher than that cured under standard conditions (S), while over time, this trend reversed. Furthermore, 0.7P will not damage the interior of steam cured concrete (Z0.7P), but will improve the compactness of concrete. Therefore, the chloride diffusion coefficient of concrete is S >0.7P>ZS>Z0.7P prior to 14 days of curing age, while it will change to ZS>Z0.7P>0.7P>S after 28 days. In addition, curing air pressure and humidity have the greatest influence on the chloride ion permeability of concrete, followed by curing temperature, and curing age has the least influence.
钢筋缠绕预应力钢筒混凝土管道技术规范 : DB/T 1161—2020 [S]. 宁夏 : 宁夏回族自治区市场监督管理厅 , 2020 .
彭波 . 蒸养制度对高强混凝土性能的影响 [D]. 武汉 : 武汉理工大学 , 2007 .
Peng B . Influence of steam-curing system on the performance of high strength concrete [D]. Wuhan : Wuhan University of Technology , 2007 . (in Chinese)
陈磊 , 陈国新 , 苏枋 . 蒸养混凝土力学性能国内外研究现状 [J]. 粉煤灰综合利用 , 2016 ( 5 ): 61 - 64 .
Chen L , Chen G X , Su F . Study on the mechanical properties of steam cured concrete at home and abroad [J]. Fly Ash Comprehensive Utilization , 2016 ( 5 ): 61 - 64 . (in Chinese)
刘伟 , 贺志敏 , 谢友均 , 等 . 蒸养混凝土抗氯离子渗透性能研究 [J]. 混凝土 , 2005 ( 6 ): 56 - 60 .
Liu W , He Z M , Xie Y J , et al . Chloride ion penetration resistance of steam curing concrete [J]. Concrete , 2005 ( 6 ): 56 - 60 . (in Chinese)
何智海 , 刘运华 . 蒸养粉煤灰混凝土抗氯离子渗透性能研究 [J]. 混凝土 , 2008 ( 4 ): 4 - 7 .
He Z H , Liu Y H . Performance of chlorid ion permeability resistance of steamed fly ash concrete [J]. Concrete , 2008 ( 4 ): 4 - 7 . (in Chinese)
朱长华 , 谢永江 , 张勇 , 等 . 环境气压对混凝土含气量的影响 [J]. 混凝土 , 2004 ( 4 ): 9 - 10 .
Zhu C H , Xie Y J , Zhang Y , et al . The effect of air pressure of environment on concrete’s air-containing [J]. Concrete , 2004 ( 4 ): 9 - 10 . (in Chinese)
李雪峰 , 付智 , 罗翥 , 等 . 高原低气压环境对新拌混凝土含气量的影响 [J]. 东南大学学报(自然科学版) , 2014 , 44 ( 5 ): 1046 - 1051 .
Li X F , Fu Z , Luo Z , et al . Effect of low-pressure in plateau environment on air content of fresh concrete [J]. Journal of Southeast University (Natural Science Edition) , 2014 , 44 ( 5 ): 1046 - 1051 . (in Chinese)
李雪峰 , 付智 , 罗翥 . 低气压环境对混凝土含气量及气孔结构影响研究 [J]. 公路交通科技 , 2015 , 32 ( 2 ): 49 - 54 .
Li X F , Fu Z , Luo Z . Effect of air pressure environment on air content and air void structures of concrete [J]. Journal of Highway and Transportation Research and Development , 2015 , 32 ( 2 ): 49 - 54 . (in Chinese)
李立辉 , 陈歆 , 田波 , 等 . 大气压强对混凝土引气剂引气效果的影响研究 [J]. 建筑材料学报 , 2021 , 24 ( 4 ): 886 - 873 .
Li L H , Chen X , Tian B , et al . Study on the effect of atmospheric pressure on air-entraining performance of air-entraining agents of concrete [J]. Journal of Building Materials , 2021 , 24 ( 4 ): 886 - 873 . (in Chinese) .
Ge X , Ge Y , Li Q F , et al . Effect of low air pressure on the durability of concrete [J]. Construction and Building Materials , 2018 , 187 : 830 - 838 .
何锐 , 王铜 , 陈华鑫 , 等 . 青藏高原气候环境对混凝土强度和抗渗性的影响 [J]. 中国公路学报 , 2020 , 33 ( 7 ): 29 - 41 .
He R , Wang T , Cheng H X , et al . Impact of Qinghai-Tibet Plateau’s Climate on strength and permeability of concrete [J]. China Journal of Highway and Transport , 2020 , 33 ( 7 ): 29 - 41 . (in Chinese)
Kobayashi K , Ahn D L , Rokugo K . Effects of crack properties and water-cement ratio on the chloride proofing performance of cracked SHCC suffering from chloride attack [J]. Cement and Concrete Composites , 2016 , 69 : 18 - 27 .
Hu X , Shi C , Shi Z , et al . Compressive strength, pore structure and chloride transport properties of alkali-activated slag/fly ash mortars [J]. Cement and Concrete Composites , 2019 , ( 104 ): 103392 .
Kwon S J , Na U J , Park S P , et al . Service life prediction of concrete wharves with early-aged crack: Probabilistic approach for chloride diffusion [J]. Structural Safety , 2009 , 31 ( 1 ): 75 - 83 .
孙伟 . 现代结构混凝土耐久性评价与寿命预测 [M]. 北京 : 中国建筑工业出版社 , 2015 : 224 .
Sun W . Durability evaluation and service life prediction of modern concrete [M]. Beijing : China Architecture & Building Press , 2015 : 224 . (in Chinese)
Bastidas-Arteaga E , Chateauneuf A , Sánchez-Silva M , et al . A comprehensive probabilistic model of chloride ingress in unsaturated concrete [J]. Engineering Structures , 2011 , 33 ( 3 ): 720 - 730 .
Haiyan M , Wei G , Hongfa Y , et al . Durability of concrete subjected to dry-wet cycles in various types of salt lake brines [J]. Construction and Building Materials , 2018 , 193 : 286 - 294 .
朱方之 , 赵铁军 , 王振波 , 等 . 基于冻融损伤和表面剥落的氯离子扩散模型修正与应用 [J]. 建筑材料学报 , 2015 , 18 ( 6 ): 1065 - 1069 .
Zhu F Z , Zhao T J , Wang Z B , et al . Modification and application of chloride diffusion model based on frost damage and surface scaling [J]. Journal of Building Materials , 2015 , 18 ( 6 ): 1065 - 1069 . (in Chinese)
刘加平 , 刘玉静 , 石亮 , 等 . 氯盐-硫酸盐对水泥基材料的复合侵蚀破坏 [J]. 建筑材料学报 , 2016 , 19 ( 6 ): 993 - 997 .
Liu J P , Liu Y J , Shi L , et al . Combine attack of chloride-sulfate on cement-based materials [J]. Journal of Building Materials , 2016 , 19 ( 6 ): 993 - 997 . (in Chinese)
水运工程混凝土试验检测技术规程 : JTS/T 23—2019 [S]. 北京 : 人民交通出版社股份有限公司 , 2019 .
陈波 , 白银 , 刘雪娟 , 等 . 水泥品种对钻孔灌注桩混凝土耐久性的影响 [J]. 混凝土与水泥制品 , 2015 ( 8 ): 1 - 6 .
Chen B , Bai Y , Liu X J , et al . Influence of cement type on concrete durability of bored pile [J]. China Concrete and Cement Products , 2015 ( 8 ): 1 - 6 . (in Chinese)
丁建彤 , 宁逢伟 , 王奇 . 盐碱地下水环境中桩基混凝土耐腐蚀研究 [J]. 混凝土 , 2015 ( 6 ): 153 - 156,160 .
Ding J T , Ning F W , Wang Q . Corrosion research on pile concrete in saline groundwater environments [J]. Concrete , 2015 ( 6 ): 153 - 156,160 . (in Chinese)
葛昕 . 高原气候条件对混凝土性能及开裂机制影响的研究 [D]. 哈尔滨 : 哈尔滨工业大学 , 2019 .
Ge X . The research on effect of plateau climatic conditions on concrete performance and cracking mechanism [D]. Harbin : Harbin Institute of Technology , 2019 . (in Chinese)
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