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林   峰 ，周殷弘 ，嵇朵平 ，秦靖閏 ，王森基

 

（中建八局發(fā)展建設公司 ， 山東 青島 266000)

摘   要 ：為提高清水混凝土的耐久性，對氟碳類、有機硅類以及丙烯酸類三種不同保護劑在不同涂刷方式下清水混凝土的耐久性進行了對比試驗。結果表明：相比基準試驗組，涂刷保護劑后的清水混凝土耐久性均有不同 程度的提升，面漆對于耐久性的提升作用強于底漆，氟碳類保護劑的改善效果＞有機硅類保護劑的改善效果＞丙 烯酸類保護劑的改善效果 ，且最佳涂刷方式為兩層底漆＋兩層面漆；采用氟碳類保護劑進行兩層底漆 ＋兩層面漆 涂刷后，48 h 吸水率 、60 d 碳化深度 、60 d 氯離子滲透深度相比基準試驗組分別降低 78 . 9% 、65. 3% 和 47. 3% ,  150 次凍融循環(huán)后質量損失率僅為 0. 53% ,  相對動彈性模量達到 83 . 3% ,  抗壓強度耐腐蝕系數達到 0. 892 。

關鍵詞：清水混凝土 ；保護劑 ；涂刷方式 ；耐久性能

中圖分類號：TU593           

文獻標志碼：A            

文章編號： 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

作者簡介：林   峰  (1979—)   男 ，碩士 ，高級工程師 ，研究

方向：建筑設計。

收稿日期：2022- 11 - 16