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Title: Sulfur speciation in untreated and alkali treated ground-granulated blast furnace slag

Authors:
; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1397419
Grant/Contract Number:
MIID16077
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Science of the Total Environment
Additional Journal Information:
Journal Volume: 589; Journal Issue: C; Related Information: CHORUS Timestamp: 2017-10-04 21:20:16; Journal ID: ISSN 0048-9697
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English

Citation Formats

Arai, Yuji, Powell, Brian A., and Kaplan, Daniel I.. Sulfur speciation in untreated and alkali treated ground-granulated blast furnace slag. Netherlands: N. p., 2017. Web. doi:10.1016/j.scitotenv.2017.02.163.
Arai, Yuji, Powell, Brian A., & Kaplan, Daniel I.. Sulfur speciation in untreated and alkali treated ground-granulated blast furnace slag. Netherlands. doi:10.1016/j.scitotenv.2017.02.163.
Arai, Yuji, Powell, Brian A., and Kaplan, Daniel I.. Sat . "Sulfur speciation in untreated and alkali treated ground-granulated blast furnace slag". Netherlands. doi:10.1016/j.scitotenv.2017.02.163.
@article{osti_1397419,
title = {Sulfur speciation in untreated and alkali treated ground-granulated blast furnace slag},
author = {Arai, Yuji and Powell, Brian A. and Kaplan, Daniel I.},
abstractNote = {},
doi = {10.1016/j.scitotenv.2017.02.163},
journal = {Science of the Total Environment},
number = C,
volume = 589,
place = {Netherlands},
year = {Sat Jul 01 00:00:00 EDT 2017},
month = {Sat Jul 01 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.scitotenv.2017.02.163

Citation Metrics:
Cited by: 3works
Citation information provided by
Web of Science

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  • The chemical composition and pH of the pore solution extracted from six different ground granulated blast-furnace slag (GGBFS) pastes were determined. The concentrations of Si, Ca, Al, and Mg are functions of the pH of the aqueous phase, with high pH associated with the higher concentrations of Si and Al and the lower concentrations of Ca and Mg. When GGBFS is mixed with an aqueous phase with pH higher than 11.5, the reaction is activated or accelerated. The main hydration product was identified as C-S-H, and hydrotalcite, at later stages of hydration, was observed in the pastes with an aqueousmore » phase of a high pH. The effect of pore solution on the alkali activation of GGBFS is discussed with reference to the hydration products.« less
  • The hydration properties of blended cements made from portland cement and a waste material obtained from a Birla White Cement Factory known as an Alkali Bypass Dust were studied. The results showed that 5 to 10 percent addition of this waste material in the portland cement decreased the water requirements, accelerated the hydration, decreased the porosity and increased the compressive strengths at all the ages of hydration. Hydration properties of granulated blast furnace slag blended portland cement in presence of 5% alkali bypass dust have also been studied. The extent of hydration decreased as the amount of slag is increasedmore » but the compressive strength values were higher at 28 days.« less
  • The effect of finely ground fly ash (FGFA), finely ground granulated blast furnace slag (FGGBS), and their combination on the compressive strength of concrete was studied. Test results showed that incorporating 20% FGFA or FGGBS can significantly increase the compressive strength of concrete after 3 days. The compressive strength of concrete incorporating the combination of FGFA and FGGBS is higher than both FGFA concrete and FGGBS concrete, and is quantitatively similar to that of silica fume concrete. Scanning electron microscopic analysis showed that, after the incorporation of the combination of FGFA and FGGBS, a great quantity of a stick-like substancemore » exist in the surface of hardened paste being investigated. The electron probe x-ray microanalyzer analysis showed that the stick-like substance was most probably the sheet C-S-H rolled up during specimen preparation for scanning electron microscopic analysis, which may be the mechanism of the strengthening effect of the combination of FGFA and FGGBS.« less