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Engineering properties of geopolymer prepared by mild chemical activation of ground granulated blast furnace slag

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Title Statement Engineering properties of geopolymer prepared by mild chemical activation of ground granulated blast furnace slag
 
Added Entry - Uncontrolled Name Singh, Ashita ; Department of Civil Engineering, University Institute of Technology, Rajiv Gandhi Proudyogiki Vishwavidyalaya, Bhopal 462033, India
Bhadauria, Sudhir Singh; Department of Civil Engineering, University Institute of Technology, Rajiv Gandhi Proudyogiki Vishwavidyalaya, Bhopal 462033, India
Mudgal, Manish ; Advanced Radiation Shielding and Cement Free Concrete Group, Council of Scientific and Industrial Research -Advanced Materials and Processes Research Institute, Bhopal 462026, India
Kushwah, Suresh Singh; Department of Civil Engineering, University Institute of Technology, Rajiv Gandhi Proudyogiki Vishwavidyalaya, Bhopal 462033, India
 
Uncontrolled Index Term civil engineering; building materials; concrete technology
Geopolymer, Fly ash, Ground granulated blast furnace slag
 
Summary, etc. <p>In this research article engineering properties of solely ground granulated blast furnace (GGBS) slag geopolymers have been investigated at varying proportions of alkali activators. Combination of sodium hydroxide (SH) and sodium meta silicate (SMS) powder has been used as alkali activators. Consistency, setting time and compressive strength have been determined at different concentration of SH and ratio of SMS/SH for GGBS geopolymer. Maximum compressive strength of 87.76 MPa has been achieved at 2 molar concentration of SH and SMS/SH = 2.0 after 28 days of curing at ambient temperature. The consistency of mix attaining maximum compressive strength is 27.5%. The initial and final setting time of 55 and 105 minutes has been observed. The soundness of geopolymer paste is within permissible limits. The micro-structural analysis of GGBS and geopolymer paste has been performed by XRD, FTIR, FESEM and EDAX. The co-existence of calcium silicate hydrate gel and geopolymeric gel may be responsible for achieving high compressive strength at low concentration of activators under ambient temperature curing.<em></em></p>
 
Publication, Distribution, Etc. Indian Journal of Engineering and Materials Sciences (IJEMS)
2021-02-23 14:12:30
 
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http://op.niscair.res.in/index.php/IJEMS/article/view/39390
 
Data Source Entry Indian Journal of Engineering and Materials Sciences (IJEMS); ##issue.vol## 27, ##issue.no## 5 (2020): IJEMS- OCTOBER 2020
 
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