impact of sodium silicate solution chemistry on product formation and jelly hardening of alkali-activated GGBS mortars

Liu Lili; Ji Yongsheng; Zhang LiXu ZhishanGao FurongZhou Yangmei

首页> 外文期刊>Magazine of concrete research >impact of sodium silicate solution chemistry on product formation and jelly hardening of alkali-activated GGBS mortars

【24h】

impact of sodium silicate solution chemistry on product formation and jelly hardening of alkali-activated GGBS mortars

机译：impact of sodium silicate solution chemistry on product formation and jelly hardening of alkali-activated GGBS mortars

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

This study investigated the effect of silicate modulus (M = silicon dioxide (SiO2)/sodium oxide (Na2O) by mass) and activator content S (mass proportion of sodium oxide and silicon dioxide to ground granulated blast-furnace slag (GGBS)) of sodium silicate (SS) solution on the compressive strength of alkali-activated GGBS (AAS) mortars. At a given solid content, the specimens activated by SS with modulus of 1.0 and 1.5 had the highest compressive strength. In the case of the same modulus of SS, the compressive strength of the AAS mortars rose linearly and then remained unchanged or declined slightly with the increase in S. The mechanism of the action of SS on AAS was studied using backscattered electron (BSE) and energy-dispersive spectroscopy (EDS). The BSE image of AAS shows that GGBS particles are tightly bonded to the surrounding hardened, jelly-like slurry, and that the structure of the GGBS particles in the AAS slurry is intact without an apparent hydrating layer around it. EDS analysis revealed that only active materials in the GGBS, mainly calcium, are dissolved to participate in reaction, and that dissolving these materials does not damage the GGBS structure. S is solidified by these active materials, which embed the GGBS particles therein to form a whole.

著录项

来源
《Magazine of concrete research》 |2022年第2期|42-53|共12页
作者
Liu Lili; Ji Yongsheng; Zhang LiXu ZhishanGao FurongZhou Yangmei;
展开▼
作者单位

China Univ Min & Technol, Jiangsu Key Lab Environm Impact & Struct Safety E, Xuzhou, Jiangsu, Peoples R China|Xuzhou Inst Technol, Xuzhou, Jiangsu, Peoples R China;

China Univ Min & Technol, Jiangsu Key Lab Environm Impact & Struct Safety E, Xuzhou, Jiangsu, Peoples R China|China Univ Min & Technol, Sch Mech & Civil Engn, State Key Lab Geomech & Deep Underground Engn, Xuzhou, Jiangsu, Peoples R China;

China Univ Min & Technol, Jiangsu Key Lab Environm Impact & Struct Safety E, Xuzhou, Jiangsu, Peoples R China;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类
关键词
cement; cementitious materials; compressive strength; mortar;

impact of sodium silicate solution chemistry on product formation and jelly hardening of alkali-activated GGBS mortars

摘要

著录项

相关主题

期刊订阅