| LIU Fang,YOU Zhan-ping,GUAN Bo-wen,ZHANG Gao-qin.Experimental Study on the Impact of Exterior Wall Coating to Concrete Durability[J].Surface Technology,,(): |
| Experimental Study on the Impact of Exterior Wall Coating to Concrete Durability |
| 投稿时间：2014-01-14 修订日期：2014-02-25 |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| DOI： |
| KeyWord:concrete exterior wall coating carbonation chloride ion erosion test hydrochloric acid erosion water absorption |
| Author | Institution |
| LIU Fang |
School of Highway, Chang′an University, Xi′an , China |
| YOU Zhan-ping |
School of Highway, Chang′an University, Xi′an , China |
| GUAN Bo-wen |
School of Materials Science and Engineering, Chang′an University, Xi′an , China |
| ZHANG Gao-qin |
School of Civil Engineering, Nanjing Forestry University, Nanjing , China |
|
| 摘要点击次数: |
| 全文下载次数: |
| Abstract: |
| Objective To explore the ability of exterior wall coating to improve the durability of concrete, Methods The influence of concrete durability was systematically studied after concrete surface was painted through carbonation test, chloride ion erosion test, hydrochloric acid erosion test and water absorption test. Results When carbonization time is 60d, carbonation depth of specimen painted by the exterior wall coating R decreases by 53.4% ,compared with the blank specimen. 90 days of age, The electric flux of the blank specimen is 2423 coulomb, penetration level is "medium". however, the electric flux of specimen painted by the exterior wall coating R is 1599 coulomb, penetration level is "low". Flexural strength of blank specimen is only 42.7% comparing with specimen brushed by exterior wall coating R ,when immersed in 4% hydrochloric acid for 28 days. After immersed 4 h, 8 h, 12 h, 24 h, the water absorption of specimen painted by exterior wall coating R reduced by 67.4%, 51.7%, 41.7%,18.0%, compared with the blank specimen respectively. Conclusion Concrete surface painted by exterior wall coating can improve the ability of concrete carbonation, chloride ion erosion, hydrochloric acid erosion and reduce the water absorption of concrete. Exterior wall coating can improve the durability of concrete. |
| 关闭 |
|
|
|