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Evaluation of Bond Properties of a Fabric-Reinforced Cementitious Matrix for Strengthening of Concrete Structures
Applied Sciences ( IF 2.838 ) Pub Date : 2020-05-29 , DOI: 10.3390/app10113767
Min-Jun Kim , Hyeong-Gook Kim , Yong-Jun Lee , Dong-Hwan Kim , Min-Su Jo , Kil-Hee Kim

In the present study, pull-out and pull-off tests were conducted to examine the bond strength between an inorganic cement adhesive (hereinafter referred to as the “matrix”) and a textile, which composed a fabric-reinforced cementitious matrix (FRCM). The matrix was developed by mixing slag and short fibers in an attempt to improve the alkali resistance and compressive strength. The developed matrix was examined with regard to its alkali resistance, water resistance, and void distribution. Bond tests were conducted in two parts: a pull-out series and pull-off series. The type of textile (carbon or basalt) and the weaving methods were selected as test parameters. These tests were performed in accordance with the methods described in ISO10406-1 (pull-out) and ASTM C1583 (pull-off). The test results showed that the developed matrix was superior to existing mortar methods in terms of alkali resistance, water resistance, and compressive strength. Additionally, the FRCM in which carbon textiles were used exhibited excellent bond performance.

中文翻译:

织物增强水泥基增强混凝土结构粘结性能的评价

在本研究中,进行了拉拔试验,以检验无机水泥胶粘剂(以下称为“基质”)与织物之间的粘合强度,织物由织物增强水泥基(FRCM)组成。 。通过混合矿渣和短纤维来开发基质,以提高耐碱性和抗压强度。检查显影的基质的耐碱性,耐水性和空隙分布。粘合测试分为两个部分:拉出系列和拉出系列。选择纺织品的类型(碳或玄武岩)和编织方法作为测试参数。这些测试是按照ISO10406-1(抽出)和ASTM C1583(抽出)中所述的方法进行的。测试结果表明,所开发的基体在耐碱性,耐水性和抗压强度方面优于现有的砂浆方法。另外,其中使用碳纤维的FRCM表现出优异的粘合性能。
更新日期:2020-05-29
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