沿海水工混凝土结构表面防水技术
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摘要
随着经济的高速发展,对外贸易的日益繁盛,中国沿海港口、码头在国民经济增长过程中扮演着重要的角色,但港口水工建筑物的桩基与码头长期处于浪溅区与大气区,占水体总含量3%的盐分会对基础建设部位的钢筋混凝土造成严重的腐蚀破坏。因此,针对上述所提出的问题,利用超疏水防护层机理,采用接触角、抗氯离子渗透以及吸水率试验的方法验证硅烷疏水剂性能的优劣。结果表明:硅烷疏水剂在混凝土表面形成的膜状物既能够有效疏水,又能够有效地和混凝土材料相结合,起到隔绝水的作用,从而有效地降低混凝土材料受Cl~-、SO_4~2-的腐蚀。
With the rapid development of the economy and the growing prosperity of foreign trade,China's coastal ports and wharfs play an important role in the growth of the national economy,but the pile foundations and dock of the port's hydraulic structures have been a long time in the splash zone and the atmospheric zone. Salts,which account for 3% of the total seawater content,cause severe corrosion damage to the reinforced concrete at the foundation. Therefore,in view of the above-mentioned problems,the superhydrophobic protective layer mechanism is used to verify the performance of silane hydrophobic agent by contact angle,chloride ion penetration resistance and water absorption test. The results show that the membrane formed by the silane hydrophobic agent on the concrete surface can be effectively hydrophobic,and can be effectively combined with the concrete material to isolate the water,thus effectively reducing the corrosion of the concrete material by Cl-and SO2-4.
With the rapid development of the economy and the growing prosperity of foreign trade,China's coastal ports and wharfs play an important role in the growth of the national economy,but the pile foundations and dock of the port's hydraulic structures have been a long time in the splash zone and the atmospheric zone. Salts,which account for 3% of the total seawater content,cause severe corrosion damage to the reinforced concrete at the foundation. Therefore,in view of the above-mentioned problems,the superhydrophobic protective layer mechanism is used to verify the performance of silane hydrophobic agent by contact angle,chloride ion penetration resistance and water absorption test. The results show that the membrane formed by the silane hydrophobic agent on the concrete surface can be effectively hydrophobic,and can be effectively combined with the concrete material to isolate the water,thus effectively reducing the corrosion of the concrete material by Cl-and SO2-4.
引文
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6 陈涛.民建室内给排水设计的几点探讨[J].山东工业技术,2016,16(9):101Chen Tao. Discussion on the design of indoor water supply and drainage in minjian[J]. Shandong Industrial Technology,2016,16(9):101
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9 Wittmann Folker H,战洪艳,赵铁军.混凝土表面防水处理与氯离子隔离层的建立[J].建筑材料学报,2005,8(1):1-6Wittmann,Folker H,Zhan Hongyan,Zhao Tiejun. Waterproofing treatment of concrete surface and establishment of chloride ion barrier layer[J]. Journal of Building Materials,2005,8(1):1-6
10 许红,储可华,黄正,等.硅烷防水剂在混凝土保护中的应用研究[J].现代涂料与涂装,2016,19(9):4-5Xu Hong,Chu Kehua,Huang Zheng,et al. Application of silane water repellent in concrete protection[J]. Modern Coatings&Coatings,2016,19(9):4-5
11 何雷建.混凝土氯离子渗透性能的实验分析[J].城市建设理论研究,2013,13(15):1-2He Leijian. Experimental analysis of chloride ion permeability of concrete[J]. City Construction Theory Research,2013,13(15):1-2
12 张海廷.氯离子侵蚀环境下在役钢筋混凝土结构的可靠性检测诊断[D].郑州:郑州大学,2005Zhang Haiting. Reliability detection and diagnosis of in-service reinforced concrete structures under chloride ion erosion environment[D]. Zhengzhou:Zhengzhou University,2005
13 王幻.氯离子环境中混凝土的电化学阻抗谱研究[D].大连:大连理工大学,2014Wang Huan. Electrochemical impedance spectroscopy study of concrete in chloride ion environment[D]. Dalian:Dalian University of Technology,2014
14 王幻,贡金鑫,姜凤娇.氯离子条件下矿物掺合料混凝土的电化学阻抗谱研究[J].混凝土,2014,14(7):42-47Wang Huan,Gong Jinxin,Jiang Fengjiao. Electrochemical impedance spectroscopy study of mineral admixture concrete under chloride ion conditions[J]. Concrete,2014,14(7):42-47
15 Hall C. Barrier performance of concrete:A review of fluid transport theory[J]. Materials&Structures,1994,27(5):291-306
16 封云旭.内掺硅树脂对水泥基材料性能影响的研究[D].青岛:青岛理工大学,2016Feng Yunxu. Study on the effect of silicone-doped resin on the performance of cement-based materials[D]. Qingdao:Qingdao Technological University,2016
2 广州四航工程技术研究院.海港工程混凝土结构防腐蚀技术规范[M].北京:人民交通出版社,2001:21-23Guangzhou Sihang Engineering Technology Research Institute. Anticorrosion technical specification for concrete structures of seaport engineering[M]. Beijing:People's Communications Publishing House,2001:21-23
3 崔坤,姚学颖.硅烷浸渍防腐在水工码头中的应用及其对耐久性的影响[J].城市建筑,2014,14(17):372Cui Kun,Yao Xueying. Application of silane impregnation and anticorrosion in hydraulic wharf and its impact on durability[J]. City Architecture,2014,14(17):372
4 王航.有机硅烷浸渍技术在寒冷地区机场混凝土道面中的应用研究[J].路基工程,2015,15(3):158-161Wang Hang. Application of organosilane impregnation technology in concrete pavement of cold area airport[J]. Journal of Subgrade Engineering,2015,15(3):158-161
5 孔明星.恶劣环境下混凝土用有机功能材料及其防护机理[J].工业,2016,16(7):146Kong Mingxing. Organic functional materials for concrete in harsh environment and their protective mechanism[J]. Industry,2016,16(7):146
6 陈涛.民建室内给排水设计的几点探讨[J].山东工业技术,2016,16(9):101Chen Tao. Discussion on the design of indoor water supply and drainage in minjian[J]. Shandong Industrial Technology,2016,16(9):101
7 孙高霞,孙红尧,陆采荣.渗透性有机硅表面防护涂料的研究及应用现状[J].腐蚀与防护,2009,30(7):442-446Sun Gaoxia,Sun Hongyao,Lu Cairong. Research and application status of permeable silicone surface protective coatings[J]. Corrosion and Protection,2009,30(7):442-446
8 孙中新,李继航,刘继宪,等.有机硅烷涂料的“呼吸”性能研究[J].防水材料与施工,2003,3(1):50-51Sun Zhongxin,Li Jihang,Liu Jixian,et al. Study on the “breathing”performance of organosilane coatings[J]. Waterproof Materials and Construction,2003,3(1):50-51
9 Wittmann Folker H,战洪艳,赵铁军.混凝土表面防水处理与氯离子隔离层的建立[J].建筑材料学报,2005,8(1):1-6Wittmann,Folker H,Zhan Hongyan,Zhao Tiejun. Waterproofing treatment of concrete surface and establishment of chloride ion barrier layer[J]. Journal of Building Materials,2005,8(1):1-6
10 许红,储可华,黄正,等.硅烷防水剂在混凝土保护中的应用研究[J].现代涂料与涂装,2016,19(9):4-5Xu Hong,Chu Kehua,Huang Zheng,et al. Application of silane water repellent in concrete protection[J]. Modern Coatings&Coatings,2016,19(9):4-5
11 何雷建.混凝土氯离子渗透性能的实验分析[J].城市建设理论研究,2013,13(15):1-2He Leijian. Experimental analysis of chloride ion permeability of concrete[J]. City Construction Theory Research,2013,13(15):1-2
12 张海廷.氯离子侵蚀环境下在役钢筋混凝土结构的可靠性检测诊断[D].郑州:郑州大学,2005Zhang Haiting. Reliability detection and diagnosis of in-service reinforced concrete structures under chloride ion erosion environment[D]. Zhengzhou:Zhengzhou University,2005
13 王幻.氯离子环境中混凝土的电化学阻抗谱研究[D].大连:大连理工大学,2014Wang Huan. Electrochemical impedance spectroscopy study of concrete in chloride ion environment[D]. Dalian:Dalian University of Technology,2014
14 王幻,贡金鑫,姜凤娇.氯离子条件下矿物掺合料混凝土的电化学阻抗谱研究[J].混凝土,2014,14(7):42-47Wang Huan,Gong Jinxin,Jiang Fengjiao. Electrochemical impedance spectroscopy study of mineral admixture concrete under chloride ion conditions[J]. Concrete,2014,14(7):42-47
15 Hall C. Barrier performance of concrete:A review of fluid transport theory[J]. Materials&Structures,1994,27(5):291-306
16 封云旭.内掺硅树脂对水泥基材料性能影响的研究[D].青岛:青岛理工大学,2016Feng Yunxu. Study on the effect of silicone-doped resin on the performance of cement-based materials[D]. Qingdao:Qingdao Technological University,2016