Jak zwiększyć przyczepność stal zbrojeniowa-beton?

• Autorzy: Kucharska Milena , Dybeł Piotr

Warianty tytułu

EN

Influence of casting direction on bond to steel reinforcing bars in self-copmacting concrete

• Języki publikacji: PL

Abstrakty

EN

The paper analyses the impact of casting direction of self-compacting concrete (SCC) on its bond quality to steel reinforcing bars. Tests were performed on high performance self-compacting concretes with different amount of silica fume to cement mass. Experiment was carried out on 480 mm height specimens, which allowed determining changes of bond condition along its height. The ribbed reinforcing bars have been placed perpendicularly to the direction of casting. Casting was performed from two points – from the bottom and the top of the form. Research has shown that casting from the bottom of the form improves bond strength and quality.

Słowa kluczowe

PL

przyczepność; stal zbrojeniowa; efekt top-bar; beton samozagęszczalny; badanie przyczepności; kierunek betonowania

EN

bond; reinforcing steel; top-bar effect; self-compacting concrete; pull-out test; casting direction

• Wydawca: BUILDER CORP Sp. z o.o.
• Czasopismo: Builder
• Rocznik: 2019
• Tom: R.23, nr 1
• Strony: 65--67
• Opis fizyczny: Bibliogr. 15 poz., il., tab.

Twórcy

autor

Kucharska Milena

• Wydział Górnictwa i Geoinżynierii, AGH Akademia Górniczo-Hutnicza

autor

Dybeł Piotr

• Wydział Górnictwa i Geoinżynierii, AGH Akademia Górniczo-Hutnicza, opiekun naukowy

Bibliografia

• [1] Szwabowski J., Gołaszewski J., Technologia betonu samozagęszczalnego, Stowarzyszenie Producentów Cementu, Kraków 2010.
• [2] Castel A., Vidal T., Viriyametanont K., Francois R., Effect of reinforcing bar orientation and location on bond with self-consolidating concrete. ACI Structural Journal. 2006, Vol. 103, No. 4, s. 559-567.
• [3] Desnerck P., De Schutter G., Taerwe L., Bond behaviour of reinforcing bars in self-compacting concrete: experimental determination by using beam tests. Materials and Structures. 2010, Vol. 43, s. 53-62.
• [4] Hassan A.A.A., Hossain K.M.A., Lachemi M., Bond strength of deformed bars in large reinforced concrete members cast with industrial self-consolidating concrete mixture. Construction and Building Materials. 2009, Vol. 24, s. 520-530.
• [5] Dybeł P., Furtak K., The effect of ribbed reinforcing bars location on their bond with high-performance concrete. Archives of Civil and Mechanical Engineering. 2015, Vol. 15, No. 4, s. 1070-1077.
• [6] Dybeł P., Furtak K., Influence of silica fume content on the quality of bond conditions in high-performance concrete specimens. Archives of Civil and Mechanical Engineering. 2017, Vol. 17, No. 4, s. 795-805.
• [7] Trezos K. G., Sfikas I.P., Pasios C. G., Influence of water-to binder ratio on top-bar effect and on bond variation across length in Self-Compacting Concrete specimens. Cement&Concrete Composites. 2013, Vol. 48, s. 127-139.
• [8] Valcuende M., Parra C., Bond behaviour of reinforcement in self-compacting concretes. Construction and Building Materials. 2009, Vol.23, s.162-170.
• [9] ACI 318. Building Code Requirements for Structural Concrete. American Concrete Institute, 2011.
• [10] EN 1992. Design of concrete structures, Part 1-1: General Rules and Rules for Buildings. European Committee for Standardization, 2008.
• [11] FIB Bulletin No. 65. Model Code 2010. Final draft Volume 1, 2012.
• [12] RILEM TC, RILEM Recommendations for the Testing and Use of Construction Materials, RC 6 Bond Test for Reinforcement Steel. Pull-Out Test, 1983. E&FN SPON, 1994.
• [13] EN 12930-3, Testing hardened concrete. Compressive Strength of test specimens, 2009.
• [14] Pędziwiatr J., Podstawowe zagadnienia przyczepności stali i betonów w elementach żelbetowych, Oficyna Wydawnicza Politechniki Wrocławskiej, Wrocław 2007.
• [15] Huang Z., Engrtöm B., Magnusson J., Experimental investigation of the bond and anchorage behaviour of deformed bars in high strength concrete. In: Report 94:4. Chalmers, Chalmers University of Technology, 1996.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).