The use of concrete filler as mineral admixture in concrete

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46346741%3A_____%2F12%3ATEPOJ04" target="_blank" >RIV/46346741:_____/12:TEPOJ04 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The use of concrete filler as mineral admixture in concrete
Original language description
One of the most important challenges of present time concrete science is how to reduce Portland cement production and limit its use. One reason for this is a need for CO2 emission reduction and another a need for a saving of natural resources (limestone,energy). The present paper deals with some results achieved by a replacement of natural ground limestone with ground recycled concrete. Two different concretes were used as the source of concrete filler. Both of them were ground to three specific surfaces. A limestone of similar specific surfaces was used too. Mortars were mixed with a blend of Portland cement, fly ash and concrete filler or limestone filler. The compressive strengths at the age of 24 hours and 28 days are presented in the paper. The results prove that mortars with fly ash and concrete filler show a similar workability; worse early-age strengths and better 28-day strengths than those with fly ash and limestone.
Czech name
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Czech description
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Project
<a href="/en/project/FR-TI1%2F004" target="_blank" >FR-TI1/004: The research on and development of concretes based on a new binder aimed at utilization of secondary raw materials together with improvement of quality and durability parameters of concrete.</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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