Feasibility of incorporating autoclaved aerated concrete waste for cement replacement in sustainable building materials

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F20%3A10244779" target="_blank" >RIV/61989100:27690/20:10244779 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0959652619343252?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0959652619343252?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jclepro.2019.119455" target="_blank" >10.1016/j.jclepro.2019.119455</a>

Result language

angličtina

Original language name

Feasibility of incorporating autoclaved aerated concrete waste for cement replacement in sustainable building materials

Original language description

Autoclaved aerated concrete waste (AACW) is a common low-strength cement-based construction and demolition waste, which is currently disposed by landfills and hard to be directly used as supplementary cementitious material. The present work proposed a potential approach incorporating AACW for cement substitution in sustainable building materials. Wet-milling technique was used to dispose and improve the fineness of AACW (median particle size, as low as 2.3 μm). It was proved that AACW is suitable for wet-milling treatment due to its porous texture and low-strength. The pH value and electrical conductivity of the AACW slurry was notably improved. Water requirement was increased by the ultrafine AACW. Both setting time and the main hydration heat location were obviously brought forward by ultrafine AACW, indicating its early hydration acceleration. Compressive strength of ultrafine AACW replaced cement pastes present higher or equivalent value compared with pure cement paste, within 30% replacement level. Pore structure was effectively refined by the ultrafine wet-milling AACW. It was proved that AACW could be efficiently used as an alternative cementitious material in cement and concrete after wet-milling treatment, thus bring environmental and economic benefits. (C) 2019 Elsevier Ltd

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/EF17_048%2F0007373" target="_blank" >EF17_048/0007373: Damage Prediction of Structural Materials</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Name of the periodical

Journal of Cleaner Production

ISSN

0959-6526

e-ISSN

—

Volume of the periodical

250

Issue of the periodical within the volume

250

Country of publishing house

GB - UNITED KINGDOM

Number of pages

5

Pages from-to

—

UT code for WoS article

000508829800047

EID of the result in the Scopus database

2-s2.0-85078301066