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原文传递 SUITABILITY OF ALKALI ACTIVATED FLY ASH BINDER AS A STABILIZING AGENT FOR HIGHLY EXPANSIVE SOIL

题名：	SUITABILITY OF ALKALI ACTIVATED FLY ASH BINDER AS A STABILIZING AGENT FOR HIGHLY EXPANSIVE SOIL
其他题名：	1.Chen,F.H.(1975).Foundations on Expansive Soils,Elsevier Science,Amsterdam,The Netherlands.
正文语种：	英文
作者：	Sarat Kumar Das
关键词：	activator；binder；effectiveness；centration；research；engineering；mixture；proper；solution；soil
摘要：	This research work presents part of the research on efficacy of sodium based alkaline activators and class F fly ash as an additive in improving the engineering properties of expansive soils (Black cotton soils). Cement industry is the second largest industry for the global warming. Sodium hydroxide concentrations of 10, 12.5 and 15 molal along with 1 Molar solution of sodium silicate were used as activators. The activator to ash ratios (liquid to solid mass ratio) was kept between 1 and 2.5 and ash percentages of 20, 30 and 40 ％, relatively to the total solids. The effectiveness of this binder is tested by conducting the Unconfined Compressive Strength (UCS) at curing periods of 3, 7 and 28 days and is compared with that of a common fly ash based binder, also the most effective mixtures were analyzed for mineralogy with XRD. Suitability of alkaline activated fly ash mix as a grouting material is also ascertained by studying the rheological properties of the grout such as, setting time, density and viscosity.
出版年：	2015
论文唯一标识：	I-75Y2015V43N12005
英文栏目名称：	Technical Papers
期刊名称：	Indian Highways
拼音刊名(出版物代码)：	I-75
卷：	43
期：	12
页码：	21-26