New treatment technology: The use of wet-milling concrete slurry waste to substitute cement

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F20%3A10246865" target="_blank" >RIV/61989100:27690/20:10246865 - isvavai.cz</a>

Výsledek na webu

<a href="https://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=6&SID=E164qmOgIQP2cxWLJ5N&page=1&doc=1" target="_blank" >https://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=6&SID=E164qmOgIQP2cxWLJ5N&page=1&doc=1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jclepro.2019.118347" target="_blank" >10.1016/j.jclepro.2019.118347</a>

Jazyk výsledku

angličtina

Název v původním jazyce

New treatment technology: The use of wet-milling concrete slurry waste to substitute cement

Popis výsledku v původním jazyce

Concrete slurry waste is a dewatered solid residue generated from the production of concrete. The high discharging cost of concrete slurry waste strikes the concrete industry so that it is imperative to find an effective method to dispose concrete slurry waste. This study is conducted to utilise wet-milling to refine concrete slurry waste to partially replace the use of cement. In this method, concrete slurry waste was considered as filler and nucleus site to densify the microstructure of paste by filling the space and accelerating hydration. The results showed that both the initial and final setting time gradually decreased as the wet-milling concrete slurry waste dosage increased. The W15 mixture presented a cumulative heat evolution lower than that of the W10 mixture, however, all the mixtures with wet-milling concrete slurry waste showed cumulative heat evolution higher than the reference mixture. Similar to heat evolution results, compressive strength showed a positive effect when the wet-milling concrete slurry waste dosage was lower than 15%. Mercury intrusion porosimetry analysis results suggested that wet-milling concrete slurry waste can refine pore structure of hardening cement paste. The wet-milling concrete slurry waste energy intensity, carbon emission and cost showed a downward trend according to the quantitative calculation compared to Portland cement. (c) 2019 Elsevier Ltd. All rights reserved.

Název v anglickém jazyce

New treatment technology: The use of wet-milling concrete slurry waste to substitute cement

Popis výsledku anglicky

Concrete slurry waste is a dewatered solid residue generated from the production of concrete. The high discharging cost of concrete slurry waste strikes the concrete industry so that it is imperative to find an effective method to dispose concrete slurry waste. This study is conducted to utilise wet-milling to refine concrete slurry waste to partially replace the use of cement. In this method, concrete slurry waste was considered as filler and nucleus site to densify the microstructure of paste by filling the space and accelerating hydration. The results showed that both the initial and final setting time gradually decreased as the wet-milling concrete slurry waste dosage increased. The W15 mixture presented a cumulative heat evolution lower than that of the W10 mixture, however, all the mixtures with wet-milling concrete slurry waste showed cumulative heat evolution higher than the reference mixture. Similar to heat evolution results, compressive strength showed a positive effect when the wet-milling concrete slurry waste dosage was lower than 15%. Mercury intrusion porosimetry analysis results suggested that wet-milling concrete slurry waste can refine pore structure of hardening cement paste. The wet-milling concrete slurry waste energy intensity, carbon emission and cost showed a downward trend according to the quantitative calculation compared to Portland cement. (c) 2019 Elsevier Ltd. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20700 - Environmental engineering

Projekt

<a href="/cs/project/EF17_048%2F0007373" target="_blank" >EF17_048/0007373: Predikce poškození konstrukčních materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Cleaner Production

ISSN

0959-6526

e-ISSN

—

Svazek periodika

242

Číslo periodika v rámci svazku

January 2020

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

—

Kód UT WoS článku

000491240100090

EID výsledku v databázi Scopus

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