Pore structure evaluation of cementing composites blended with coal by-products: Calcined coal gangue and coal fly ash

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F18%3A10241806" target="_blank" >RIV/61989100:27690/18:10241806 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0378382018313754?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0378382018313754?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fuproc.2018.09.013" target="_blank" >10.1016/j.fuproc.2018.09.013</a>

Result language

angličtina

Original language name

Pore structure evaluation of cementing composites blended with coal by-products: Calcined coal gangue and coal fly ash

Original language description

Coal gangue (CG) and coal fly ash (FA) are the main coal by-product wastes. This paper focuses on the pore structure evaluation of CG and FA blended cementing composites with various replacement levels from 3 days up to 180 days. Results indicate that negative effect of coal by-products on the compressive strength and average pore size can be reduced to a negligible level at late ages. Similar average pore size (similar to 10 nm) and critical width (10-20 nm) are found for CG and FA composites after 90 days. Moreover, the blended composites have significantly higher gel pore fraction, and the higher the dosage the larger the gel pore fraction. Multi-fractal feature is observed with the fact that scale of micro-fractal region is found always broader than the macro-fractal region and the micro-D-s is found always larger than the macro-D-s. Both the micro- and macro-D-s of blended composites are systematically larger than the plain pastes.

Czech name

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Czech description

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Type

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

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

Fuel Processing Technology

ISSN

0378-3820

e-ISSN

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Volume of the periodical

181

Issue of the periodical within the volume

181

Country of publishing house

US - UNITED STATES

Number of pages

16

Pages from-to

75-90

UT code for WoS article

000449900500009

EID of the result in the Scopus database

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