Rheology and packing density of biomass fly ash/Portland cement mixtures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26232511%3A_____%2F17%3AN0000065" target="_blank" >RIV/26232511:_____/17:N0000065 - isvavai.cz</a>

Výsledek na webu

<a href="http://uest.ntua.gr/athens2017/proceedings/pdfs/Athens2017_Bohac_Kubatova_Stanek.pdf" target="_blank" >http://uest.ntua.gr/athens2017/proceedings/pdfs/Athens2017_Bohac_Kubatova_Stanek.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Rheology and packing density of biomass fly ash/Portland cement mixtures

Popis výsledku v původním jazyce

Paper deals with rheological properties and packing density of fresh mixtures of Portland cement and biomass fly ash. Water demand of paste of normal consistency increases with increase of replacement level of biomass fly ash for Portland cement. Up to 5 wt.% contents of biomass fly ash yield stress and plastic viscosity values decrease, while at contents higher than 5 wt.%, the opposite trend was revealed. Biomass fly ash compared to Portland cement has proportionally lower content of particles with size of tens and first single digit numbers of microns. Deficiency in this region at higher contents of biomass fly ash in cement mixtures results in deflection from ideal packing density curve. Based on modeling of the curve, it was found that ideal cumulative particle size distribution is lacking particles with size around 1 µm. Proceedings of the 5th International Conference on Sustainable Solid Waste Management, Athens. 21-24 June 2017, p 8

Název v anglickém jazyce

Rheology and packing density of biomass fly ash/Portland cement mixtures

Popis výsledku anglicky

Paper deals with rheological properties and packing density of fresh mixtures of Portland cement and biomass fly ash. Water demand of paste of normal consistency increases with increase of replacement level of biomass fly ash for Portland cement. Up to 5 wt.% contents of biomass fly ash yield stress and plastic viscosity values decrease, while at contents higher than 5 wt.%, the opposite trend was revealed. Biomass fly ash compared to Portland cement has proportionally lower content of particles with size of tens and first single digit numbers of microns. Deficiency in this region at higher contents of biomass fly ash in cement mixtures results in deflection from ideal packing density curve. Based on modeling of the curve, it was found that ideal cumulative particle size distribution is lacking particles with size around 1 µm. Proceedings of the 5th International Conference on Sustainable Solid Waste Management, Athens. 21-24 June 2017, p 8

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20500 - Materials engineering

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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