Utilization of submicron autoclaved aerated concrete waste to prepare eco-friendly ultra-high performance concrete by replacing silica fume

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F22%3A10250518" target="_blank" >RIV/61989100:27690/22:10250518 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0959652622038240" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0959652622038240</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jclepro.2022.134252" target="_blank" >10.1016/j.jclepro.2022.134252</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Utilization of submicron autoclaved aerated concrete waste to prepare eco-friendly ultra-high performance concrete by replacing silica fume

Popis výsledku v původním jazyce

Silica fume (SF), as the main submicron filler material in ultra-high performance concrete (UHPC), determines the bulk density and final mechanical properties of UHPC. With the rapid increase in the demand for UHPC in the construction industry, SF is gradually becoming a luxury material. In the present work, wet grinding technology was used to prepare an alternative submicron material to replace SF. Wet-grinded submicron autoclaved aerated concrete waste (WSA) was prepared, and UHPC was prepared with the replacement of SF by WSA under different replacement levels (up to 100%). The results showed that at the level of 100% WSA replacement, UHPC&apos;s hydration process was promoted, the 28-day compressive strength was the same, and the pore structure was refined. But the cost of WSA is only 41% of SF, indicating that it is possible to completely replace SF in UHPC using WSA. The results propose a new technical approach for the replacement of high-cost SF in UHPC, which is expected to achieve high value-added benefits for construction waste. (C) 2022 Elsevier Ltd

Název v anglickém jazyce

Utilization of submicron autoclaved aerated concrete waste to prepare eco-friendly ultra-high performance concrete by replacing silica fume

Popis výsledku anglicky

Silica fume (SF), as the main submicron filler material in ultra-high performance concrete (UHPC), determines the bulk density and final mechanical properties of UHPC. With the rapid increase in the demand for UHPC in the construction industry, SF is gradually becoming a luxury material. In the present work, wet grinding technology was used to prepare an alternative submicron material to replace SF. Wet-grinded submicron autoclaved aerated concrete waste (WSA) was prepared, and UHPC was prepared with the replacement of SF by WSA under different replacement levels (up to 100%). The results showed that at the level of 100% WSA replacement, UHPC&apos;s hydration process was promoted, the 28-day compressive strength was the same, and the pore structure was refined. But the cost of WSA is only 41% of SF, indicating that it is possible to completely replace SF in UHPC using WSA. The results propose a new technical approach for the replacement of high-cost SF in UHPC, which is expected to achieve high value-added benefits for construction waste. (C) 2022 Elsevier Ltd

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20100 - Civil 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

2022

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

1879-1786

Svazek periodika

376

Číslo periodika v rámci svazku

November 2022

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

36

Strana od-do

nestrankovano

Kód UT WoS článku

000000000000000

EID výsledku v databázi Scopus

2-s2.0-85139005856