首页> 美国卫生研究院文献>Materials >Influence of Dispersing Method on the Quality of Nano-Admixtures Homogenization in Cement Matrix
【2h】

Influence of Dispersing Method on the Quality of Nano-Admixtures Homogenization in Cement Matrix

机译:分散法对水泥基质纳米癌均质化质量的影响

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。
获取外文期刊封面目录资料

摘要

In recent years, a nano-modification of the cement composites allowed to develop a number of new materials. The use of even small amount of nano-admixture makes possible not only to improve the physico-mechanical properties of the cement materials, but also to obtain the composite with high usability, optimised for the given application. The basic problem of nano-modification of the cement composites remains the effectiveness of dispersing the nanomaterials inside the cement matrix. This paper deals with the effect of the type and size of the nanoparticles on the tendency to their agglomeration in the cement matrix. The main techniques and methods of dispersing the nanomaterials are presented. It has been demonstrated, on the basis of the results of testing of three nanomodifiers of 0D type (nano-SiO2, nano-Fe3O4 and nano-Pb3O4), how the structure and properties of the nanomaterial affect the behaviour of the particles when dissolving in the mixing water and applying a superplasticiser. The nanoparticles had similar size of about 100 nm but different physico-chemical properties. The methods of dispersing covered the use of high-speed mechanical stirring and ultrasonication. The influence of the method of nano-modifier dispersing on the mechanical performance of the cement composite has been presented on the basis of the results of testing the cement mortars modified with 3% admixture of nano-SiO2.
机译:近年来,纳米改性水泥复合材料允许开发许多新材料。使用甚至少量的纳米混合物不仅可以改善水泥材料的物理机械性能,而且可以获得具有高可用性的复合材料,优化给定的应用。水泥复合材料的纳米修饰的基本问题仍然是将纳米材料分散在水泥基质内的有效性。本文涉及纳米颗粒的类型和尺寸对水泥基质中倾向倾向的影响。提出了分散纳米材料的主要技术和方法。已经证明了0D型(纳米-SiO2,纳米-FE3O4和纳米PB3O4)的三种纳米透模剂的测试结果,纳米材料的结构和性质如何在溶解时影响粒子的行为混合水并施加超塑性体。纳米颗粒具有约100nm但不同的物理化学性质的相似尺寸。分散方法涵盖了使用高速机械搅拌和超声波。纳米改性剂分散对水泥复合材料机械性能的影响,基于测试用3%纳米SiO2混合物改性的水泥砂浆的结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号