Cement type and properties of self-compacting concrete

• Autorzy: Grabiec A. , Chutek R.

Warianty tytułu

PL

Rodzaj cementu a właściwości betonu samozagęszczalnego

• Języki publikacji: EN

Abstrakty

EN

Self-compacting concrete (SCC) is undoubtedly a promising ecological cement matrix composite of new generation. However, it is not easy to achieve the required combination of properties in fresh SCC mixes. SCC is also particularly sensitive to any changes in the laboratory and at the job site. Choice of constituents for SCC, especially cement and superplasticiser which are able to collaborate in the correct way, has a significant effect on SCC performance. In this investigation considered in qualitative way, four cements, varying in physical and chemical properties and phase composition were used to check their compatibility with a new generation superplasticiser, taking into account the properties of fresh and hardened self-compacting concretes. Results revealed some differences although it is impossible to answer definitely which cement performs with the superplasticiser in the best way.

PL

Beton samozagęszczalny (BS) to kompozyt cementowy nowej generacji. Jego projektowanie i wykonawstwo wymagają szczególnej staranności, aby uzyskać wymagane właściwości mieszanki betonowej. Jest wrażliwy nawet na minimalne zmiany składu i warunków otoczenia przy wykonywaniu go zarówno w laboratorium, jak i na budowie. Dobór składników do betonu samozagęszczalnego - szczególnie cementu i superplastyfikatora, które współdziałają ze sobą we właściwy sposób, jest istotny w technologii tego betonu. W badaniach przedstawionych w artykule zastosowano cztery rodzaje cementu, różniące się właściwościami fizycznymi i chemicznymi oraz składem fazowym, i sprawdzono ich kompatybilność z superplastyfikatorem nowej generacji, oceniając właściwości wykonanych z nich mieszanek betonowych i betonów.

Słowa kluczowe

EN

cement type; compatibility; self-compacting concrete; superplasticizer; chemical property; physical property

• Wydawca: -
• Czasopismo: Acta Scientiarum Polonorum. Architectura
• Rocznik: 2008
• Tom: 07
• Numer: 4
• Opis fizyczny: p.3-14,fig.,ref.

Twórcy

autor

Grabiec A.

• University of Life Sciences in Poznan, Piatkowska 94E, Poznan, Poland

autor

Chutek R.

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