The Influence of Fair-Faced Concrete Protective Agent on the Resistance to Freezing and Thawing of Concrete. Issue 1 (24th March 2021)

• Record Type: Journal Article
• Authors: Zhang, Zhizeng; Zhang, Yunpeng; Ma, Junqi; Li, Songfan; Zhang, Wenhai
• Is Part Of: Integrated ferroelectrics. Volume 215:Issue 1(2021)
• Page Start: 166
• Page End: 178
• Publication Date: 2021-03-24
• Subjects: Fair-faced concrete -- acrylic acid -- silicone -- fluorocarbon -- freezing and thawing cycle; Ferroelectric devices -- Periodicals; Integrated circuits -- Periodicals; 537.244805
• DOI: 10.1080/10584587.2021.1911234
• Languages: English
• ISSNs: 1058-4587

Abstract

Abstract: Protective agents can effectively improve the weather resistance of fair-faced concrete. The surface of C40 concrete is treated with acrylic acid, silicone and fluorocarbon fair-faced concrete protectors respectively. Five groups of tests are carried out and forty-eight specimens are used. The effect of different coating layers on the resistance to freezing and thawing of concrete are systematically studied and compared with the standard test block that is not painted with the fair-faced concrete protector. The results indicate: the anti-freezing ability of topcoat is greater than that of the primer; in the aspect of different protectors, fluorocarbon has the best effect, silicon takes the second, and acrylic acid has the worst effect; with the increase of the number of protective agents, the anti-freezing ability of the concrete specimen is gradually improved; in consideration of economy and durability, two coats of primer and two coats of topcoat have the best effect. When the freeze-thaw cycle reaches 150 times, the relative dynamic elastic modulus of the test pieces coated with the fluorocarbon, silicone and acrylic acid fair-faced concrete protectant systems are 83.3%, 80.4%, and 72.9%, respectively.