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首页> 外文会议>International Congress on Mineral Processing and Extractive Metallurgy 11 - 13 September 2000 Melbourne, Victoria >The Effect of Ionic Contaminants on the Setting Behaviour of Geopolymeric Gels
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The Effect of Ionic Contaminants on the Setting Behaviour of Geopolymeric Gels

机译：离子污染物对地质聚合物凝胶凝结行为的影响

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摘要

Geopolymerisation is a new technology that processes and tranforms aluminosilicate minerals into mechanically strong and chemically stable products. In this investigation, minerals such as fly ash and kaolinite were used a sthe solid raw materials for geopolymerisation. Inorganic salts were added to the geopolymeric pastes to simualte ionic contamination during processing for building and construction applications. The resultant products were examined and characterised physically. It was found that the early strength development of geopolymeric pastes could be changed according to the nature as well as the extent of the contamination. At a small dosage, the effect of the contamination on the early geopolymric system depended heavily on the nature of the artificail surfaces that were created in the geopolymeric solution through the addition of the chemical additives. For example, the samples containing MgCl_2 and Mg(NO_3)_2 had shown the same yield stress developments due to the similar surfaces that were formed.
机译：地质聚合是一种新技术，可将硅铝酸盐矿物加工并转化为机械强度高和化学稳定性好的产品。在这项调查中，使用了粉煤灰和高岭石等矿物作为固体原料进行地聚。在建筑和施工应用的加工过程中，将无机盐添加到地聚合物浆中，以同时污染离子。检查所得产物并进行物理表征。已经发现，地聚合物糊剂的早期强度发展可以根据性质和污染程度而改变。在少量情况下，污染对早期地聚合物系统的影响在很大程度上取决于通过添加化学添加剂在地聚合物溶液中形成的人工表面的性质。例如，由于形成的表面相似，因此含有MgCl_2和Mg（NO_3）_2的样品显示出相同的屈服应力发展。

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