Relationship between the protective effect for chloride ion permeation and microstructure of polymer cement waterproofing membrane

聚合物水泥防水卷材氯离子渗透防护效果与微观结构的关系

• 批准号: 24760455
• 负责人: TSUKAGOSHI Masayuki
• 金额: $ 2.91万
• 依托单位: The University of Tokushima
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24760455/
• 关键词: ポリマーセメント; 防水層; 微細構造; ひび割れ; 塩害; 耐久性; コンクリート; 耐疲労性; 塩化物イオン; 電気泳動法

Material separation in the cross sectional direction was observed in polymer cement waterproofing membranes fabricated with high W/B,. Such pieces showed a behavior similar to brittle failure, with enhanced tensile stress and a significantly reduced rate of elongation.The application of a waterproofing membrane for substrate concrete drastically reduced the Chloride ion penetration. However, a waterproofing membrane does not completely prevent the penetration of Chloride ion into the substrate. The waterproofing membranes are elongated across the substrate cracking and this elongation deteriorates the shielding performance, permitting permeation of Chloride ion into the crack space.The EPMA observations and simulation results show the material separation during the curing process. The mechanical properties and shielding performance are strongly affected by the distribution of cement hardened body sections and polymer sections that comprise the polymer cement waterproofing membranes.

在用高W/B，.制造的聚合物水泥防水膜中观察到在横截面方向上的材料分离。这些块表现出类似于脆性破坏的行为，具有增强的拉伸应力和显著降低的伸长率。用于基底混凝土的防水膜的应用显著降低了氯离子渗透。然而，防水膜不能完全防止氯离子渗透到基材中。防水卷材在基材开裂处被拉长，这种拉长使防水卷材的屏蔽性能变差，使氯离子渗透到裂缝空间中。EPMA观察和模拟结果表明，在固化过程中材料发生了分离。聚合物水泥防水卷材中水泥硬化体部分和聚合物部分的分布对力学性能和屏蔽性能有很大影响。

项目成果

A Cross-sectional Array of the Heterogeneous Distribution of the Constituent Elements in a Polymer-Cement Waterproofing Membrane

聚合物水泥防水卷材中成分不均匀分布的横截面阵列

• 发表时间: 2012
• 作者: Masayuki Tsukagoshi;Takao Ueda;Nakamori Masaki and Tanaka Kyoji
• 通讯作者: Nakamori Masaki and Tanaka Kyoji

Evaluation of the Durability of Cracked Concrete with a Waterproofing Membrane Under Exposure to a Corrosive Environment

带防水膜的开裂混凝土在腐蚀环境下的耐久性评价

• 发表时间: 2012
• 作者: Tomoya Ichikawa;Masayuki Tsukagoshi;Takao Ueda and Yasuji Shinohara
• 通讯作者: Takao Ueda and Yasuji Shinohara

塗膜系防水層の塩害抑制効果に与える下地ひび割れの影響

基层裂缝对防水涂层抑制盐害效果的影响

• 发表时间: 2014
• 作者: 中森正基,塚越雅幸,上田隆雄,田中享二;市川智也,塚越雅幸,上田隆雄
• 通讯作者: 市川智也,塚越雅幸,上田隆雄

ポリマーセメント系塗膜防水層の微細構造と耐疲労性能の関係

聚合物水泥基防水层微观结构与抗疲劳性能的关系

• 发表时间: 2013
• 作者: 中森正基,塚越雅幸,上田隆雄,田中享二;市川智也,塚越雅幸,上田隆雄;中森正基,塚越雅幸,上田隆雄,野並優二;中森正基,塚越雅幸,上田隆雄,田中享二
• 通讯作者: 中森正基,塚越雅幸,上田隆雄,田中享二

Simulation Model of Polymer Cement Waterproofing Membrane's Film Formation with Material Segregation

聚合物水泥防水卷材材料离析成膜模拟模型

• 发表时间: 2012
• 作者: Masaki Nakamori;Masayuki Tsukagoshi;Takao Ueda and Kyoji Tanaka
• 通讯作者: Takao Ueda and Kyoji Tanaka