【摘 要】
：
This paper refers to cement usage as cross linking agent of waterborne acrylic resins formulated as waterproofing, resulting on highly waterproof membranes
【机 构】
：
Hemisfério Produtos Técnicos, Sao Paulo-Brazil
【出 处】
：
The 14th International Congress on the Chemistry of Cement (
论文部分内容阅读
This paper refers to cement usage as cross linking agent of waterborne acrylic resins formulated as waterproofing, resulting on highly waterproof membranes with many degrees of elasticity and flexibility, from rigid for negative pressure up to very elastic, with 100% or more stretching.Each waterproofing is formulated to achieve specific characteristics and remains as emulsion until its application.Waterborne acrylic resins are polymers with particles separated by water and result on a membrane,from the moment the water is expelled.The cement is essential on this process, because speeds up exponentially this expulsion, besides completing empty spaces and allowing the result of a continuous membrane, without porosity and with low absorption,fundamental characteristic for waterproofing.By using cement only, without any other aggregate, its possible to ensure total control of the membrane elasticity and its use on correct proportions, according to the waterproofing producer specifications, results on an application without solid leavings.
其他文献
In this paper, electrochemical impedance spectroscopy (EIS) was adopted as a nondestructive testing method for measuring the electrical resistance and evalu
By igniting the sample in air at (950 ± 25) ℃, the influence of this oxidation on the loss on ignition is great.The error resulting from the oxidation of
Sustainability is becoming a keynote subject in engineering and architecture.One topic related to the increment of the sustainability is the incorporation o
21世纪是知识经济时代,人才对于社会发展进步的重要性越来越突出,与此同时,经济全球化的深入加剧了市场和人才之间的竞争,这就更需要高校为社会培养出更多专业的高素质人才。
The excellent binding properties of Portland cement rely on the reaction of its main mineral phase, tricalcium silicate (C3S), with water to produce calcium
It has long been empirically and phenomenologically understood that there exist close relations between cement hydration and its impedance spectroscopy.Much
请下载后查看，本文暂不支持在线获取查看简介。忠勇无畏动物兵@庆先@语墨
Please download to view, this article does not support online access to view profile. Valoro
【摘要】在社会经济不断发展的刺激下，多媒体技术逐渐迎来了新的发展机遇，开始在多个行业展露头角，尤其是教育领域。在大学日语教学中引用多媒体技术很好地解决了一些教学问题，推动了日语教学的进步。本文首先分析了多媒体手段在大学日语教学中的优势，在此基础上提出了多媒体手段在大学日语教学中的应用策略，以期能够促进大学英语的发展。 【关键词】多媒体 大学日语 运用 【中图分类号】G642 【文献标识码】A
The typical total porosity and porosity size distribution of crushed natural and recycled aggregates are at the origin of both higher and slower water absor
为探索超高速切削条件下涂层硬质合金刀具的切削性能,进行了超高速面铣淬硬钢实验,研究了切屑成形、切削力、刀具磨损以及表面粗糙度的特点。研究结果表明:在切削速度为2 800