Badania rozmieszczenia zbrojenia rozproszonego w betonach SCC

• Autorzy: Ponikiewski T. , Cygan G.
• Języki publikacji: PL

Abstrakty

PL

W artykule przedstawiono wpływ wybranej metody formowania betonu SCC na rozmieszczenie włókien stalowych. Zaprezentowano analizę przekrojów próbek elementów belkowych, wykonanych z betonu modyfikowanego włóknami stalowymi i formowanych podczas badania L-box. Analizę wykonano przy pomocy autorskiego programu komputerowego do badania obrazu zgładów fibrobetonowych.

EN

In the paper the influence of chosen forming method of Self-Compacting Concrete on distribution of fibres are presented and discussed. In this paper an analysis is presented which deals with cross-sections of SCC concrete beams in which steel fibres were applied and L-box test formed. This analysis was carried out using special software for the analysis of polished micro-sections of fibre-concretes. Analysis of the impact this randomness has on workability and strength parameters of concrete is one of the present trends in investigation of normal and self-compacting concretes. The lack of regularity and directional reorientation of fibres during technological processes causes some problems, linked with their random distribution in the concrete mass and it was confirm in presented research.

Słowa kluczowe

PL

beton samozagęszczalny; SCC; metoda formowania; włókno stalowe; badanie L-box; fibrobeton

EN

self-compacting concrete; SCC; forming method; steel fibre; L-box test; fibre reinforced concrete; FRC

• Wydawca: Media-Pro Polskie Media Profesjonalne Ewelina Nawara
• Czasopismo: Drogi : lądowe, powietrzne, wodne
• Rocznik: 2011
• Tom: [nr] 9 (39)
• Strony: 26--35
• Opis fizyczny: Bibliogr. 8 poz., fot., rys., tab.

Twórcy

autor

Ponikiewski T.

autor

Cygan G.

• Politechnika Śląska, Wydział Budownictwa

Bibliografia

• 1. Busterud I., Johansen K., Dossland A.I.: Production of fibre reinforced SCC, in: Proceedings of the second North American conference on the design and use of self-consolidating concrete and the fourth international RILEM Symposium on self-compacting concret, Chicago, IL, USA, October 2005, Hanley Wood, Minneapolis, MN, USA, pp 381 - 386.
• 2. Ding Y., Thomaseth D., Niederegger Ch., Thomas A., W. Lukas: The investigation on the workability and flexural toughness of fibre cocktail reinforced self-compacting high performance concrete. 6th RILEM Symposium on fibre reinforced concretes (frc) - BEFIB 2004, Varenna, taly 2004.
• 3. Grünewald S.: Performance-based design of self-compacting fibre reinforced concrete, Doctor’s thesis, 2004.
• 4. Grünewald S., Walraven J.C.: Optimisation of the mixture composition of self-compacting fibre reinforced concrete. In: Proceedings of the Second North American conference on the Design and Use of Self-consolidating Concrete and the Fourth International RILEM Symposium on Self-compacting Concrete, Chicago, IL, USA, October 2005, Minneapolis, MN, USA, pp 393 - 399.
• 5. K.H. Khayat, P. Ghoddousi, F. Kassimi: Effect of fiber type on workability and mechanical properties of SCC, In: Proceedings of the Third North American conference on the Design and Use of Self-consolidating Concrete SCC Chicago 2008.
• 6. T. Ponikiewski: The rheological properties of fresh steel fibre reinforced self-compacting concrete, in: Proc. Int. Symp. ‘Brittle Matrix Composites 8’, A.M.Brandt, V.C.Li, I.H.Marshall, Cambridge and Warsaw 2006.
• 7. T. Ponikiewski: Investigation on random distribution of fibres in cementcomposites, in: Proc. Int. Symp. ‘Brittle Matrix Composites 9’, A.M.Brandt, J.Olek, I.H.Marshall, Warsaw 2009.
• 8. Kmita T.: Analiza losowości rozmieszczenia zbrojenia rozproszonego w betonach samozagęszczalnych. Praca magisterska. Promotor: Tomasz Ponikiewski, Gliwice 2010.