A mix design procedure for low calcium alkali activated fly ash-based concretes
A mix design procedure for low calcium alkali activated fly ash-based concretes
复制标题
低钙碱活性粉煤灰混凝土的混合设计程序
DOI：
10.1016/j.conbuildmat.2015.01.048
复制
发表时间：
2015-03-15
影响因子：
7.4
通讯作者：
Black, Jarvis
中科院分区：
文献类型：
--
作者：
Junaid, M. Talha;Kayali, Obada;Black, Jarvis
本文提出了一个系统的方法来选择碱激发粉煤灰基地质聚合物混凝土（GPC）的配合比。建议的配合比设计过程中开发的低钙F级粉煤灰活化地质聚合物使用硅酸钠和氢氧化钠作为活化剂溶液。文献回顾表明，没有出版的综合方法在设计混合GPC。本文确定了决定GPC混合物特性的关键因素。作者认为水与地质聚合物固体（W/GPS）和碱液与粉煤灰（AL/FA）的比率是强度和可加工性的直接量度。碱性液体与水的比率（AL/W）被确定为与GPC混合物的强度最密切相关。本文介绍了各种强度的配合比设计的详细例子。(c)2015爱思唯尔有限公司版权所有。
This paper presents a systematic approach for selecting mix proportions for alkali activated fly ash-based geopolymer concrete (GPC). The proposed mix design process is developed for low calcium Class F fly ash activated geopolymers using sodium silicates and sodium hydroxide as activator solutions. A review of the literature reveals that there are no published comprehensive approaches in designing mixes for GPC. In this paper the key factors that determine the characteristics of GPC mix are identified. The authors consider the water to geopolymer solid (W/GPS) and alkaline liquid to fly ash (AL/FA) ratios as direct measures of strength and workability. The ratio of alkaline liquid to water (AL/W) is identified to be most closely linked to the strength of GPC mixes. The paper presents detailed examples of mix designs for various strengths. (c) 2015 Elsevier Ltd. All rights reserved.