contributor author | Gediminas Kastiukas | |
contributor author | Xiangming Zhou | |
contributor author | João Castro-Gomes | |
date accessioned | 2017-12-16T09:01:53Z | |
date available | 2017-12-16T09:01:53Z | |
date issued | 2017 | |
identifier other | %28ASCE%29MT.1943-5533.0002029.pdf | |
identifier uri | http://138.201.223.254:8080/yetl1/handle/yetl/4237628 | |
description abstract | This study evaluated the results of preparation conditions for the production of an alkali-activated binder (AAB) based on a binary mixture of tailings from tungsten mine waste (TMW), and waste glass (WG) activated with a mixture of sodium silicate (SS) and sodium hydroxide (SH). A 40% by weight WG increased the amorphous nature of the binary blend by 21% without initiating the alkali-silica reaction. The SS-SH activator solution was subjected to a variation of mixing times, and its sensitivity was measured using temperature monitoring and Fourier transform infrared spectroscopy (FTIR). After 20 min of mixing, the SS-SH activator solution showed a 3.13°C reduction in temperature and a 21.4% increase in unbound water content, and as a result imparted a 26% drop in the mechanical strength of TMW-WG AAB at 28 days. The TMW-WG AAB was also determined to develop the highest compressive strength when cured at 80°C for 24 h in sealed conditions. The following conditions, supported by X-ray diffraction (XRD) and FTIR, are responsible for the most significant dissolution of the aluminosilicate oxides. | |
publisher | American Society of Civil Engineers | |
title | Preparation Conditions for the Synthesis of Alkali-Activated Binders Using Tungsten Mining Waste | |
type | Journal Paper | |
journal volume | 29 | |
journal issue | 10 | |
journal title | Journal of Materials in Civil Engineering | |
identifier doi | 10.1061/(ASCE)MT.1943-5533.0002029 | |
tree | Journal of Materials in Civil Engineering:;2017:;Volume ( 029 ):;issue: 010 | |
contenttype | Fulltext | |