Study on Interface Chemistry of Concrete with Other Different Materials such as Surface Coating by Migration Technique

本研究是针对以下目标的;* * 界面化学上的混凝土影响离子传输;通过迁移技术确定表面涂层和恢复材料的有效扩散协同效应;通过表面处理混凝土进行氯化钠侵入;通过迁移技术对混凝土进行混凝土处理材料的接口抵抗力;通过混凝土处理材料加速拉伸钙离子。通过与混凝土接触使用迁移技术进行接触的本顿石的替代品在本研究的主要发现是如下的;（1）聚合物水泥的有效扩散协同作用使用的表面涂层被减少为与混凝土的比较。（2）减少2层复合材料的有效扩散系数，即表面处理的聚合物水泥的混凝土，被增加了由于表面涂层或底层最低的扩散系数的厚度。（3）利用XRD和TG/DTA对Ca（OH）的分解进行了调查，结果表面处理最小化。在聚合物混凝土和混凝土之间增加了一点强度。（4）用混凝土和本托尼特展示了复合材料，其中Ca（OH）_2在混凝土中接口的密度减少了。这就是事实，即在混凝土中迁移到Bentonite的石灰岩。然后，本顿石在钠型中的繁殖力被削弱了。（5）碳酸盐型Bentonite到Calcium型Bentonite的替代品被注意到在0至15毫米的范围内，与混凝土接口。减少了与Bentonite接触时与普通波特兰水泥接触的大量繁殖力，达到了原来的60%。由于Bentonite，用混凝土制成的，使其飞溅，减少了原来的80%。

This research aimed at following objectives;・Ionic Transport in Concrete Influential on Interface Chemistry・Determination of Effective Diffusion Coefficient of Surface Coating and Restoration Materials by Migration Technique・Chloride Ingress in Surface Treated Concrete・Interface Resistivity of Concrete with Surface Treated Materials・Accelerated Leaching of Calcium Ions in Concrete by Migration Technique・Alternation of Bentonite by Contact with Concrete Using Migration TechniqueBased on this research primarily findings were as followed;(1)Effective diffusion coefficients of polymer cement mortar used as surface coating was reduced as compared with that of concrete.(2)Reduction of the effective diffusion coefficient of 2 layered composite material such as surface treated concrete with polymer cement mortar was enlarged by the increased thickness of the lowest diffusion coefficient of either the surface coating or the substrate.(3)Investigation using the XRD and TG/DTA showed that the dissolution of Ca(OH)_2 in concrete was minimized by the surface treatment. In addition the bond strength was little reduced between the polymer cement mortar and the concrete.(4)Composite material with concrete and bentonite exhibited that the amount of Ca(OH)_2 in the vicinity of the interface in concrete was reduced. This was due to the fact that the calcium ions in the concrete were migrated into the bentonite. Then the swelling force in the sodium type bentonite was reduced.(5)The alternation of the sodium type bentonite to calcium type bentonite was noticed in the range of 0 to 15 mm in the bentonite from the interface with concrete. The reduction of the swelling force in the bentonite in contact with concrete made of the ordinary portland cement reached at 60% of the original. For bentonite with concrete made of fly ash the reduction was 80% of the original.