JNS聚合物水泥基防水砂浆试验研究

发布时间：2018-03-25 09:06

本文选题：防水砂浆　切入点：聚合物　出处：《江苏大学》2017年硕士论文

【摘要】：随着国民经济的发展,工程质量越来越受到政府和老百姓的重视,特别是近些年由于工程防水做的不到位而引发的各种经济纠纷日益增多。如何使工程质量得到保证,如何给业主减少维修费用,减少居民的烦恼,防水项目是其中重要的环节。但是,使用何种防水材料也是非常关键的。目前聚合物水泥基防水砂浆在各工程中得到了成功应用。以其优异的耐久性能和制作成本,使得防水工程的维修概率得到降低,减小不必要的资源浪费,因此在以后的防水工程中,如何有效的、正确的选择使用聚合物水泥基防水砂浆来提高工程质量将是非常重要。本文着重对水泥基砂浆渗水原因及防水方法进行了分析,对聚合物水泥基防水砂浆各组份进行了分析和选择,提出了聚合物水泥基防水砂浆基本配方技术研发的思路,分析各种防水方法对砂浆各项性能的影响,例如对聚合物水泥基防水砂浆抗渗压力、强度性能、收缩性能、吸水率和耐久性等性能进行了试验研究。同时也对聚合物水泥基防水砂浆的施工技术及相关配套技术进行了说明。本次研究技术路线是以聚合物为主要填充材料来填充砂浆中的孔隙,然后再结合其余适当掺量的掺合料来改善砂浆的若干性能,达到提高砂浆防水性能的目的;另外,聚合物本身具有有机成分,这种有机成分能与无机材料结合,进而通过一系列的物理化学反应,能够在材料内部形成一种致密的连续薄膜。通过以上反应能够使砂浆的力学性能和抗渗性能在一定程度上得到提高,而砂浆脆性和吸水率反而得到降低。以普通硅酸盐水泥砂浆为参照,研究不同种类,不同掺量的聚合物对防水砂浆性能的影响,最终得到合适的聚合物种类及所需的掺量。此次研究过程中,我们另外还针对纤维素醚、憎水剂、消泡剂等主要影响到砂浆防水性能的材料展开了掺量研究。最终通过各个组份的掺量控制,优化配比后得出能满足JC/T984-2011聚合物水泥防水砂浆的各项指标的要求产品。然后通过将此次配制出的聚合物防水砂浆运用到实际工程中,来检查防水砂浆的防水等主要性能,通过工程的运用,发现通过控制聚合物等相关掺合料的掺量,很好的改善聚合物防水砂浆的主要性能:聚合物水泥基防水砂浆压折比得到降低,柔韧性高,抗变形能力增强;聚合物水泥基防水砂浆与基材的粘结强度有大幅提高;聚合物水泥基防水砂浆防水抗渗压力增大。从而使符合我公司JNS品牌要求的聚合物水泥基防水砂浆能够用于普通工程大多数部位,应用范围更广。
[Abstract]:With the development of national economy, the quality of the project is paid more and more attention by the government and the common people, especially in recent years, the economic disputes caused by the lack of waterproofing are increasing day by day. How to ensure the quality of the project? How to reduce the cost of maintenance and reduce the troubles of the residents, the waterproof project is one of the important links. However, At present, polymer cement based waterproof mortar has been successfully applied in various projects. With its excellent durability and production cost, the maintenance probability of waterproof engineering is reduced. Reduce unnecessary waste of resources, so how to be effective in future waterproofing projects, It is very important to use polymer cement based waterproof mortar to improve the engineering quality. This paper analyzes and selects the components of polymer cement based waterproof mortar, puts forward the idea of researching and developing the basic formula of polymer cement based waterproof mortar, and analyzes the influence of various waterproof methods on the properties of mortar. For example, for polymer cement based waterproof mortar impervious pressure, strength performance, shrinkage performance, The properties of water absorption and durability were studied. The construction technology and related matching technology of polymer cement based waterproof mortar were also explained. The technical route of this study was to use polymer as the main filling material. To fill in the pores in the mortar, In addition, the polymer itself has an organic component, which can be combined with inorganic materials, to improve some properties of the mortar and achieve the purpose of improving the waterproof property of the mortar. Through a series of physical chemical reactions, a compact continuous film can be formed inside the material, and the mechanical properties and impermeability of the mortar can be improved to a certain extent by the above reaction. On the contrary, the brittleness and water absorption of mortar are reduced. The influence of different kinds of polymer on the properties of waterproofing mortar is studied with ordinary Portland cement mortar as the reference. Finally, we get the appropriate polymer type and the required amount of polymer. In the course of this research, we also aim at cellulose ether, hydrophobic agent, The defoamer and other materials which mainly affect the waterproof property of mortar are studied. Finally, through the control of the content of each component, After optimizing the ratio, the product can meet the requirements of the JC/T984-2011 polymer cement waterproof mortar. Then, by applying the polymer waterproof mortar prepared this time to the actual project, the main properties of the waterproof mortar, such as waterproofing mortar, are checked. Through the application of engineering, it is found that the main properties of polymer waterproof mortar can be improved by controlling the content of polymer and other related admixtures: the compression ratio of polymer cement based waterproof mortar is reduced, the flexibility is high, and the deformation resistance is enhanced; The bond strength between polymer cement based waterproof mortar and base material is greatly improved. The waterproof and impermeable pressure of polymer cement based waterproof mortar is increased, so that the polymer cement based waterproof mortar which meets the requirements of JNS brand of our company can be used in most parts of general engineering and has a wider application range.
【学位授予单位】：江苏大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TQ177.62

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