Mechanical, durability and hydrothermal properties of concrete produced using Portland cement-ceramic powder blends

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F16%3APU118418" target="_blank" >RIV/00216305:26110/16:PU118418 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/suco.201500029" target="_blank" >http://dx.doi.org/10.1002/suco.201500029</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/suco.201500029" target="_blank" >10.1002/suco.201500029</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mechanical, durability and hydrothermal properties of concrete produced using Portland cement-ceramic powder blends

Popis výsledku v původním jazyce

Blended Portland cement-ceramic powder binder containing up to 60% of fine-ground waste ceramics from a brick factory is used in concrete mix design, as an environmental-friendly alternative to the commonly used Portland cement. The experimental analysis of basic physical characteristics, mechanical and fracture-mechanical properties, durability properties and hygrothermal characteristics shows that the optimal amount of ceramic powder in the mix is 20% of the mass of blended cement. The decisive parameters in that respect are the compressive strength, liquid water transport parameters and resistance against deicing salts which are not satisfactory for higher ceramics dosage in the blends. In the case of other studied parameters, the limits for the effective use of ceramic powder are higher, 40% for the effective fracture toughness and specific fracture energy, 60% for the frost resistance and chemical resistance to MgCl2, NH4Cl, Na2SO4, HCl and CO2. The water vapor diffusion coefficient is found to increase with the increasing content of ceramics which for wet envelopes can be considered as a positive feature but for dry envelopes it may have a negative effect. The thermal conductivity of all mixes increases fast with growing moisture content; up to 50% differences between the dry- and water-saturated-state values are observed. This has to be taken into account in energy-related calculations.

Název v anglickém jazyce

Mechanical, durability and hydrothermal properties of concrete produced using Portland cement-ceramic powder blends

Popis výsledku anglicky

Blended Portland cement-ceramic powder binder containing up to 60% of fine-ground waste ceramics from a brick factory is used in concrete mix design, as an environmental-friendly alternative to the commonly used Portland cement. The experimental analysis of basic physical characteristics, mechanical and fracture-mechanical properties, durability properties and hygrothermal characteristics shows that the optimal amount of ceramic powder in the mix is 20% of the mass of blended cement. The decisive parameters in that respect are the compressive strength, liquid water transport parameters and resistance against deicing salts which are not satisfactory for higher ceramics dosage in the blends. In the case of other studied parameters, the limits for the effective use of ceramic powder are higher, 40% for the effective fracture toughness and specific fracture energy, 60% for the frost resistance and chemical resistance to MgCl2, NH4Cl, Na2SO4, HCl and CO2. The water vapor diffusion coefficient is found to increase with the increasing content of ceramics which for wet envelopes can be considered as a positive feature but for dry envelopes it may have a negative effect. The thermal conductivity of all mixes increases fast with growing moisture content; up to 50% differences between the dry- and water-saturated-state values are observed. This has to be taken into account in energy-related calculations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA14-04522S" target="_blank" >GA14-04522S: Výzkum procesů při vytváření pevné struktury v soustavě oxid křemičitý-portlandský cement ve vztahu k vlastnostem pojiva</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Structural Concrete

ISSN

1464-4177

e-ISSN

1751-7648

Svazek periodika

17

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

105-115

Kód UT WoS článku

000372294800012

EID výsledku v databázi Scopus

2-s2.0-84959863624