Alkali activation of mortars containing different replacement levels of ground granulated blast furnace slag
Alkali activation of mortars containing different replacement levels of ground granulated blast furnace slag
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DOI：
10.1016/j.conbuildmat.2011.10.018
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发表时间：
2012-03-01
影响因子：
7.4
通讯作者：
Atis, Cengiz Duran
中科院分区：
文献类型：
--
作者：
Bilim, Cahit;Atis, Cengiz Duran
本研究的目的是探讨一些碱激发砂浆中含有矿渣在不同的替代水平的性能。以0%、20%、40%、60%、80%和100%取代水泥重量的高炉矿渣粉作为碱激发剂，并选择具有三种不同Na剂量的液体硅酸钠作为碱激发剂。在这项研究中，抗碳化性能的测量和抗压和抗折强度测试进行的砂浆试样的尺寸为40 × 40 × 160 mm的。从测试得到的结果表明，碳化深度值的砂浆与激发剂剂量的增加而减少。此外，抗压强度和抗折强度值随着激发剂浓度和矿渣置换量的增加而增加。用液体硅酸钠活化的波特兰水泥/矿渣砂浆的强度低于用相同活化剂单独活化的矿渣。(C)2011爱思唯尔有限公司保留所有权利。
The aim of the present study is to investigate some properties of alkali-activated mortars containing slag at different replacement levels. Ground granulated blast furnace slag was used at 0%, 20%, 40%, 60%, 80% and 100% replacement by weight of cement, and liquid sodium silicate having three different Na dosages was chosen as the alkaline activator. In this research, carbonation resistance measurements and compressive and flexural strength tests were performed on the mortar specimens with size of 40 x 40 x 160 mm. The findings obtained from the tests showed that carbonation depth values of the mortars decreased with the increase of activator dosage. Additionally, compressive and flexural strength values increased with the increase in activator concentration and slag replacement level. Portland cement/slag mortars activated by liquid sodium silicate exhibited lower strength than the slag alone activated by the same activator. (C) 2011 Elsevier Ltd. All rights reserved.