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林   峰 ，周殷弘 ，嵇朵平 ，秦靖闰 ，王森基

 

（中建八局发展建设公司 ， 山东 青岛 266000)

摘   要 ：为提高清水混凝土的耐久性，对氟碳类、有机硅类以及丙烯酸类三种不同保护剂在不同涂刷方式下清水混凝土的耐久性进行了对比试验。结果表明：相比基准试验组，涂刷保护剂后的清水混凝土耐久性均有不同 程度的提升，面漆对于耐久性的提升作用强于底漆，氟碳类保护剂的改善效果＞有机硅类保护剂的改善效果＞丙 烯酸类保护剂的改善效果 ，且最佳涂刷方式为两层底漆＋两层面漆；采用氟碳类保护剂进行两层底漆 ＋两层面漆 涂刷后，48 h 吸水率 、60 d 碳化深度 、60 d 氯离子渗透深度相比基准试验组分别降低 78 . 9% 、65. 3% 和 47. 3% ,  150 次冻融循环后质量损失率仅为 0. 53% ,  相对动弹性模量达到 83 . 3% ,  抗压强度耐腐蚀系数达到 0. 892 。

关键词：清水混凝土 ；保护剂 ；涂刷方式 ；耐久性能

中图分类号：TU593           

文献标志码：A            

文章编号： 1005- 8249  (2024)  06- 0043- 06 

DOI:10. 19860/j.cnki.issn1005 - 8249.2024.06.008

 

LIN Feng ,  ZHOU Yinhong ,  JI duoping ,  QIN Jingrun ,  WANG Senji

(The Development Construction Co. ，Ltd of China Construction Eighth

Engineerings Division ,   Qingdao 266000 ,  china)

Abstract: To improve the durability of plain concrete, comparative tests were conducted on the durability of plain concrete with three different protective agents, fluorocarbon, organosilicon, and acrylic, under different coating methods. The results show that compared with the benchmark test group, the durability of fair faced concrete after brushing protective agent is improved to varying degrees. The effect of finish paint on durability is stronger than that of primer. The improvement effect of fluorocarbon protective agent is better than that of silicone protective agent and acrylic protective agent, and the best brushing method is two layers of primer and two layers of finish paint; After applying two layers of primer and two layers of finish paint with fluorocarbon protective agent, the 48h water absorption, 60d carbonization depth and 60d chloride ion penetration depth were reduced by 78.9%, 65.3% and 47.3% respectively compared with the benchmark test group. After 150 freeze-thaw cycles, the mass loss rate was only 0.53%, the relative dynamic elastic modulus was 83.3%, and the compressive strength corrosion resistance coefficient was 0.892.

Keywords :  fair faced concrete;  protective agent;  brushing method;  durability

作者简介：林   峰  (1979—)   男 ，硕士 ，高级工程师 ，研究

方向：建筑设计。

收稿日期：2022- 11 - 16