Segmented fractal pore structure covering nano- and micro-ranges in cementing composites produced with GGBS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F19%3A10242660" target="_blank" >RIV/61989100:27690/19:10242660 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0950061819320458?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0950061819320458?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.conbuildmat.2019.08.016" target="_blank" >10.1016/j.conbuildmat.2019.08.016</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Segmented fractal pore structure covering nano- and micro-ranges in cementing composites produced with GGBS

Popis výsledku v původním jazyce

y Ground granulated blast-furnace slag (GGBS) is a massively produced waste in iron-making process. In present work, the pore size range of GGBS blended cementing composites is finely segmented to reveal the scale-dependent fractal nature of pore surface. Results indicate that structural complexity and irregularity of C-S-H gels can be improved by GGBS. It is proved that an increase in the pore surface area helps to improve the complexity (fractal dimension, D-s) of the pore wall. Linear growth of D-s with specific surface area exists in almost all pore ranges, especially in mesopore ranges. Fractal dimension in gel pore range shows the highest value, while the value in pore range of 1-10 mu m is almost the lowest. The macro region above 1 mu m, which is an aggregation of hydrated packing grains, shows a permanent-existing fractal behavior. The capillary pores between 10 nm and 1 mu m exhibits drifting non-fractal behavior, from micron-scale to nano-scale with curing time. (C) 2019 Elsevier Ltd. All rights reserved.

Název v anglickém jazyce

Segmented fractal pore structure covering nano- and micro-ranges in cementing composites produced with GGBS

Popis výsledku anglicky

y Ground granulated blast-furnace slag (GGBS) is a massively produced waste in iron-making process. In present work, the pore size range of GGBS blended cementing composites is finely segmented to reveal the scale-dependent fractal nature of pore surface. Results indicate that structural complexity and irregularity of C-S-H gels can be improved by GGBS. It is proved that an increase in the pore surface area helps to improve the complexity (fractal dimension, D-s) of the pore wall. Linear growth of D-s with specific surface area exists in almost all pore ranges, especially in mesopore ranges. Fractal dimension in gel pore range shows the highest value, while the value in pore range of 1-10 mu m is almost the lowest. The macro region above 1 mu m, which is an aggregation of hydrated packing grains, shows a permanent-existing fractal behavior. The capillary pores between 10 nm and 1 mu m exhibits drifting non-fractal behavior, from micron-scale to nano-scale with curing time. (C) 2019 Elsevier Ltd. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Construction and Building Materials

ISSN

0950-0618

e-ISSN

—

Svazek periodika

225

Číslo periodika v rámci svazku

225

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

1170-1182

Kód UT WoS článku

000488305700099

EID výsledku v databázi Scopus

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