IMPROVING THE PERFORMANCE OF SURFACE LAYER OF MORTAR AND CONCRETE

提高砂浆和混凝土表层的性能

• 批准号: 63550404
• 负责人: KAMIMURA Katsurou
• 金额: $ 1.28万
• 依托单位: UTSUNOMIYA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63550404/
• 关键词: MORTAR; CONCRETE; CURING COMPOUNDS; PULL-OUT TEST; SURFACE LAYER; STRENGTH; WATER RETENTION; コンクリート表面; 水分保持性能; 膜養生剤; 造膜速度; モルタル供試体; MORTAR; CONCRETE; CURING COMPOUNDS; PULL-OUT TEST; SURFACE LAYER; STRENGTH; WATER RETENTION; コンクリート表面; 水分保持性能; 膜養生剤; 造膜速度; モルタル供試体

Mortar and concrete have a tendency to transpire the water from those surfaces in the process of hardening. This phenomenon reduces the strength and the durability of mortar and concrete. This paper describes the effect of membrane-forming curing compounds for retaining the water from concrete surface and for improving the performance of mortar and concrete.From the result of water retention test, it becomes clear that the ability of water retention of curing compounds depends on the type of polymer, the thickness of film, the forming speed of film and the curing conditions. We conducted the pull-out test of anchor bolt embedded in concrete to evaluate the strength of concrete surface layer. And it becomes clear that the application of the curing compounds on the concrete surface improves the micro structure and the strength of concrete surface layer.

在硬化过程中，砂浆和混凝土倾向于从这些表面中散发出水。这种现象降低了砂浆和混凝土的强度和耐用性。本文介绍了膜形成固化化合物对从混凝土表面保留水的影响以及改善砂浆和混凝土的性能。从保留水位测试的结果，很明显，固化化合物的水保留能力取决于聚合物的类型，膜的厚度，膜的厚度，膜和治疗条件的速度。我们进行了嵌入混凝土中的锚螺栓的拉出测试，以评估混凝土表面层的强度。而且很明显，固化化合物在混凝土表面上的施用可改善微型结构和混凝土表面层的强度。