Experimental assessment of the casting position factor of reinforcing bars in high performance concretes (HPC, HPSCC)

• Autorzy: Dybeł Piotr , Kucharska Milena

Identyfikatory

DOI

10.1016/j.acme.2018.09.005

• Języki publikacji: EN

Abstrakty

EN

This paper concerns the problem of the experimental assessment of the casting position factor in comparison to the current normative guidelines. Our experiment was performed on three types of concrete: high-performance concrete (HPC), high-performance self-compacting concrete (HPSCC) and normal strength concrete (NSC) used as a reference. The HPC and the HPSCC were made in respectively, two and four different variants that differed in the content of silica fume. To assess the casting position factor, three types of elements with heights of 480, 800 and 1600 mm were used. In each element, a ribbed reinforcing bar with a diameter of 16 mm was embedded perpendicularly to the direction of concreting. The bond was examined using pull-out test. The test results showed that regardless of the type and composition of concrete, the linear change of the casting position factor with element's height was observed. No significant differences in the changes of the casting position factor with height were noted between the HPC and the HPSCC. The experiment revealed that the new generation concretes were characterized by a much lower value of the casting position factor in comparison to the current normative guidelines.

Słowa kluczowe

EN

bond; casting position; top-bar effect; high performance self-compacting concrete; high-performance concrete

PL

beton wysokowydajny; beton samozagęszczalny; wiązanie betonu

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2019
• Tom: Vol. 19, no. 1
• Strony: 127--136
• Opis fizyczny: Bibliogr. 32 poz., rys., tab., wykr.

Twórcy

autor

Dybeł Piotr

• AGH University of Science and Technology, Department of Geomechanics, Civil Engineering and Geotechnics, Al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Kucharska Milena

• AGH University of Science and Technology, Department of Geomechanics, Civil Engineering and Geotechnics, Al. Mickiewicza 30, 30-059 Kraków, Poland

Bibliografia

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Uwagi

PL

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