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http://hdl.handle.net/1942/30999
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DC Field | Value | Language |
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dc.contributor.author | GIJBELS, Katrijn | - |
dc.contributor.author | Pontikes, Yiannis | - |
dc.contributor.author | SAMYN, Pieter | - |
dc.contributor.author | SCHREURS, Sonja | - |
dc.contributor.author | SCHROEYERS, Wouter | - |
dc.date.accessioned | 2020-04-15T14:54:44Z | - |
dc.date.available | 2020-04-15T14:54:44Z | - |
dc.date.issued | 2020 | - |
dc.date.submitted | 2020-04-02T11:01:56Z | - |
dc.identifier.citation | CEMENT AND CONCRETE RESEARCH, 132 (Art N° 106054) | - |
dc.identifier.issn | 0008-8846 | - |
dc.identifier.uri | http://hdl.handle.net/1942/30999 | - |
dc.description.abstract | This study investigates the effect of NaOH content on alkali/sulfate-activated binders from 90 wt% ground granulated blast furnace slag (GGBFS) and 10 wt% phosphogypsum (PG). Alkali activators were prepared with a NaOH molarity ranging from 0 M to 4 M. The hydration was monitored using in-situ X-ray diffraction (XRD) and isothermal calorimetry. The hydration product assemblage was investigated using XRD, thermogravimetric analysis (TGA), Fourier-transformed infrared (FTIR) spectroscopy, nitrogen adsorption/desorption and compressive strength tests. A molarity of 0 M NaOH gave rise to the highest porosity and highest strength, although setting occurred only after 7 days. From a molarity of 2 M NaOH and higher, ettringite disappeared and got replaced by a monosulfate phase (i.e., NaCa4Al2O6(SO4)1.5.15H2O) and amorphous aluminum-hydroxide. This study shows the potential of using GGBFS and PG for the development of novel by-product based cementitious binders. | - |
dc.description.sponsorship | This work was supported by the Fund for Scientific Research Flanders (FWO). The authors would like to thank the networking support of the COST Action TU1301, www.norm4building.org. Marcin Selent (University of Oulu, Finland) and Kristof Van Hecke (University of Ghent, Belgium) are gratefully acknowledged for their valuable feedback with respect to XRD. | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.rights | © 2020 Elsevier Ltd. All rights reserved. | - |
dc.subject.other | Ground granulated blast furnace slag | - |
dc.subject.other | Phosphogypsum | - |
dc.subject.other | Supersulfated cement | - |
dc.subject.other | Alkali-activated binder | - |
dc.title | Effect of NaOH content on hydration, mineralogy, porosity and strength in alkali/sulfate-activated binders from ground granulated blast furnace slag and phosphogypsum | - |
dc.type | Journal Contribution | - |
dc.identifier.volume | 132 | - |
local.bibliographicCitation.jcat | A1 | - |
local.publisher.place | THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
local.bibliographicCitation.artnr | 106054 | - |
dc.identifier.doi | 10.1016/j.cemconres.2020.106054 | - |
dc.identifier.isi | WOS:000537846000018 | - |
dc.identifier.eissn | 1873-3948 | - |
local.provider.type | CrossRef | - |
local.uhasselt.uhpub | yes | - |
item.validation | ecoom 2021 | - |
item.accessRights | Open Access | - |
item.fullcitation | GIJBELS, Katrijn; Pontikes, Yiannis; SAMYN, Pieter; SCHREURS, Sonja & SCHROEYERS, Wouter (2020) Effect of NaOH content on hydration, mineralogy, porosity and strength in alkali/sulfate-activated binders from ground granulated blast furnace slag and phosphogypsum. In: CEMENT AND CONCRETE RESEARCH, 132 (Art N° 106054). | - |
item.fulltext | With Fulltext | - |
item.contributor | GIJBELS, Katrijn | - |
item.contributor | Pontikes, Yiannis | - |
item.contributor | SAMYN, Pieter | - |
item.contributor | SCHREURS, Sonja | - |
item.contributor | SCHROEYERS, Wouter | - |
crisitem.journal.issn | 0008-8846 | - |
crisitem.journal.eissn | 1873-3948 | - |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
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Manuscript.pdf | Peer-reviewed author version | 2.35 MB | Adobe PDF | View/Open |
2020 - Effect of NaOH content on hydration mineralogy porosity and strength in alkali sulfate activated binders from ground granulated blast furnace slag and phosphogypsum.pdf Restricted Access | Published version | 4.06 MB | Adobe PDF | View/Open Request a copy |
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