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第54卷第 2 期                                     涂料工业                                     Vol. 54 No. 2
              2024年 2 月                郭嘉相等:水工混凝土浸渍型防护涂料抗冰拔性能试验研究                                     Feb.  2024
                                                   PAINT & COATINGS INDUSTRY


                     水工混凝土浸渍型防护涂料抗冰拔性能试验研究




                                            郭嘉相 ,何世钦 ,姚国友 ,王  辉                 1
                                                    1
                                                             *1
                                                                       2
                                      (1. 北方工业大学土木工程学院,北京100144;
                                  2. 苏州佳固士新材料科技有限公司,江苏苏州215000)
                     摘 要:高寒地区的水利大坝等水工混凝土建筑物在结冰期间易出现建筑外层与覆冰层发生抗
                 冰拔破坏的现象,降低了建筑物的耐久性和服役寿命。通过防护涂料中端羟基硅油(PDMS)掺杂不
                 同含量正硅酸乙酯(TEOS)后对水泥基抗冰拔防护性能影响的试验,以及不同浓度梯度的异丙醇
                (IPA)掺量对涂料渗透性和耐腐蚀性影响的试验,研发出一种以TEOS、PDMS、PA和乙醇(EtOH)为主
                                                                                      I
                 要成分,用于高寒地区水利大坝迎水面的浸渍型防护涂料,并与其他品种涂料进行抗冰拔能力对比
                 试验。结果表明:涂料的抗冰拔性能随 TEOS 用量的增加先增高后降低,TEOS 在涂料中质量分数为
                 21% 时效果最好;添加 18%(质量分数)的 IPA 可有效减少涂料在使用过程中被污染而导致使用寿命                                                 探
                 缩短的现象;所研发的防护涂料在与同类型涂料进行抗冰拔与水接触角对比试验中取得了较为良好                                                         索
                 的效果,接触角为 121. 5°;提出的检测水泥基与冰层之间冰拔力的试验方法,可以作为检验水泥基涂
                 料抗冰拔能力的一种途径。                                                                                        开
                     关键词:水工混凝土;浸渍型防护涂料;抗冰拔;正硅酸乙酯;异丙醇
                                                                                                                     发
                     中图分类号:TQ635. 55  文献标志码:A  文章编号:0253-4312(2024)02-0007-06
                     doi:10. 12020/j. issn. 0253-4312. 2023-185

                    Experimental Study on Ice Pulling Resistance of Impregnated
                                Protective Coatings for Hydraulic Concrete



                                                  1
                                                             1
                                                                           2
                                      Guo Jiaxiang ,He Shiqin ,Yao Guoyou ,Wang Hui   1
                       (1. School of Civil Engineering,North China University of Technology,Beijing   100144,China;
                                                                             J
                           2. Suzhou Guardex New Material Technology Co     Ltd     Suzhou,iangsu   215000,China)
                                I
                      Abstract:t was easy for hydraulic concrete buildings such as hydraulic DAMS in high-
                 altitude/latitude  and  cold  region  to  have  the  phenomenon  of  uplift  failure  between  the  outer
                 layer  of  the  building  and  the  ice  cover  during  freezing,which  reduced  the  durability  and
                 service  life  of  the  buildings. The  effects  of  different  contents  of  ethyl  orthosilicate
                (TEOS)mixed with hydroxysilicone oil(PDMS)in cement based protective coatings on the ice


                 pulling resistance were tested,and the effects of different concentration gradient of isopropyl
                 alcohol(IPA)in solvents on the permeability and corrosion resistance of coatings were tested.

                 One  kind  of  impregnated  protective  coatings  with  TEOS,PDMS,IPA  and  ethanol(EtOH)

                 as  the  main  ingredients  was  developed  to  act  on  the  water  facing  surface  of  water
                 conservancy  DAMS  in  high-altitude/latitude  and  cold  region,and  the  ice  pulling  resistance

             通信作者:何世钦(1970—),女,博士,副教授,研究方向为高性能混凝土材料及混凝土结构耐久性。
             本文规范引用格式:
             郭嘉相,何世钦,姚国友,等. 水工混凝土浸渍型防护涂料抗冰拔性能试验研究[J]. 涂料工业,2024,54(2):7-11,19.
             GUO  J  X,HE S Q,YAO  G  Y,et al. Experimental study on ice pulling resistance of impregnated protective coatings for hydraulic concrete [J]. Paint &
             Coatings Industry,2024,54(2):7-11,19.

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