Publikowanie artykułów jest możliwe po podpisaniu zgody na przeniesienie licencji na czasopismo.
Size effect at testing strength properties of concrete
Amanda Akram
a.akram@pollub.plWydział Budownictwa i Architektury; Politechnika Lubelska; (Polska)
https://orcid.org/0000-0001-5619-2927
Abstrakt
Various strength characteristics of concrete are considered as fracture parameters. The compressive strength of concrete is of paramount importance when designing concrete structures, whereas tensile strength of concrete is the basic property when estimating cracking resistance of a structure and analysing fracture processes in concrete. When testing the compressive strength of concrete, the results are dependent on the shape and dimensions of used specimens. Some findings reported in the literature suggest that size effect exists also when testing such fracture properties of concrete as tensile strength. Unfortunately this problem is much less recognized and described compared to size effect in compressive test results. In this paper, the experimental investigation is presented on how the length of cylindrical specimens influences the tensile splitting strength of concrete obtained by means of the Brazilian method. Additional variable parameters were: type of aggregate (natural gravel and crushed granite) and cement-water ratio (C/W = 1.8 and C/W = 2.6). In conducted laboratory experiments a higher splitting tensile strength of concrete was noted for all specimens with nominal dimensions of 150×150 mm, compared to specimens 150×300 mm in size, regardless of type of aggregate or cement-water ratio.
Słowa kluczowe:
betonBibliografia
EN 12390-1:2013-03 - Testing hardened concrete - Part 1: Shape, dimensions and other requirements for specimens and moulds, European Committee for Standardization, 2013.
Google Scholar
EN 12390-3:2019-07 - Testing hardened concrete - Part 3: Compressive strength of test specimen, European Committee for Standardization, 2019.
Google Scholar
EN 12390-6:2011 - Testing hardened concrete - Part 6: Tensile splitting strength of test specimen, European Committee for Standardization, 2011.
Google Scholar
Aitcin P. C., Miao B., Cook W., Mitchell D., “Effects of size and curing on cylinder compressive strength of normal and high-strength concretes”, ACI Materials Journal, vol. 91(4), 1994, pp. 349-354.
DOI: https://doi.org/10.14359/4044
Google Scholar
Malaikah A., “Effect of Specimen Size and Shape on the Compressive Strength of High Strength Concrete”, Pertanika J Sci Technol, 13(1), 2005, pp. 81-96.
Google Scholar
Che Y. et al., “Effect of Specimen Shape and Size on Com-pressive Strength of Concrete”, Advanced Materials Research, vol. 163-167, 2010, pp. 1375-1379. http://doi.org/10.4028/www.scientific.net/AMR.163-167.1375
DOI: https://doi.org/10.4028/www.scientific.net/AMR.163-167.1375
Google Scholar
Sudin M.A.S., Ramli M., “Effect of Specimen Shape and Size on the Compressive Strength of Foamed Concrete”, MATEC Web of Conferences, vol. 10(1), 2014. https://doi.org/10.1051/matecconf/20141002003
DOI: https://doi.org/10.1051/matecconf/20141002003
Google Scholar
Zhong W, Pan J, Wang J, Zhang C., “Size effect in dynamic splitting tensile strength of concrete: Experimental investigation”, Construction and Building Materials, vol. 270(3), 2020. https://doi.org/10.1016/j.conbuildmat.2020.121449
DOI: https://doi.org/10.1016/j.conbuildmat.2020.121449
Google Scholar
Liu J, Wenxuan Y, Xiuli D, Wangxian Y., “Mesoscopic numerical simulation of dynamic size effect on the splitting-tensile strength of concrete”, Engineering Fracture Mechanics, vol. 209, 2019, pp. 317-332. https://doi.org/10.1016/j.engfracmech.2019.01.035
DOI: https://doi.org/10.1016/j.engfracmech.2019.01.035
Google Scholar
Suchorzewski J, Tejchman J, Nitka M., “Experimental and numerical investigations of concrete behaviour at meso-level during quasi-static splitting tension”, Theoretical and Applied Fracture Mechanics, vol. 96, 2018, pp. 720-739. https://doi.org/10.1016/j.tafmec.2017.10.011
DOI: https://doi.org/10.1016/j.tafmec.2017.10.011
Google Scholar
Zhu R., “Scale and Aggregate Size Effects on Concrete Fracture: Experimental Investigation and Discrete Element Modelling”, Civil Engineering, Écolecentrale de Nantes, 2018.
Google Scholar
Chandran K. S. R., Galyon Dorman S., “The nature of specimen-size-effect on fatigue crack growth and net-section fracture mechanics approach to extract the size-independent behavior”, International Journal of Fatigue, vol. 145(2), 2021. https://doi.org/10.1016/j.ijfatigue.2020.106088
DOI: https://doi.org/10.1016/j.ijfatigue.2020.106088
Google Scholar
EN 12390-5:2019-08 - Testing hardened concrete: Flexural strength of test specimens, European Committee for Standardization, 2019.
Google Scholar
PN-B-06250 – Beton zwykły (Eng. Plain concrete), Polski Komitet Normalizacyjny Miar i Jakości, 1988.
Google Scholar
Benkemoun N., Khazraji H. A., Poullain P., Choinska M., Khelidj A., “3-D mesoscale simulation of crack-permeability coupling in the Brazilian splitting test”, International Journal for Numerical and Analytical Methods in Geomechanics, vol. 42(1), 2017, pp. 1-20. https://doi.org/10.1002/nag.2749
DOI: https://doi.org/10.1002/nag.2749
Google Scholar
Słowik M., Stroeven P., Akram A., “Crack mechanisms in concrete – from micro to macro scale”, Budownictwo i Architektura, 19(4), 2020, pp. 55-65. http://doi.org/10.35784/bud-arch.2147
DOI: https://doi.org/10.35784/bud-arch.2147
Google Scholar
Karamloo M., Mazloom M., Payganeh G., “Influences of water to cement ratio on brittleness and fracture parameters of self-compacting lightweight concrete”, Engineering Fracture Mechanics, 168(A), 2016, pp. 227-241. http://doi.org/10.1016%2Fj.engfracmech.2016.09.011
DOI: https://doi.org/10.1016/j.engfracmech.2016.09.011
Google Scholar
Nitka M., Tejchman J., “Meso-mechanical modelling of damage in concrete using discrete element method with porous ITZs of defined width around aggregates”, Engineering Fracture Mechanics, 231, 2020, https://doi.org/10.1016/j.engfracmech.2020.107029.
DOI: https://doi.org/10.1016/j.engfracmech.2020.107029
Google Scholar
Sadrmomtazi A., Lotfi-Omran O., Nikbin I.M., “Influence of cement content and maximum aggre-gate size on the fracture parameters of magnetite concrete using WFM, SEM and BEM”, Theoretical and Applied Fracture Mechanics, 107, 2020, https://doi.org/10.1016/j.tafmec.2020.102482.
DOI: https://doi.org/10.1016/j.tafmec.2020.102482
Google Scholar
EN 196-1:2016-07 – Methods of testing cement – Part 1: Determination of strength, European Committee for Standardization, 2016.
Google Scholar
Akram, A. (2021) „Size effect at testing strength properties of concrete”, Budownictwo i Architektura, 20(4), s. 037–046. doi: 10.35784/bud-arch.2821.
Autorzy
Amanda Akrama.akram@pollub.pl
Wydział Budownictwa i Architektury; Politechnika Lubelska; Polska
https://orcid.org/0000-0001-5619-2927
Statystyki
Abstract views: 267PDF downloads: 184 PDF downloads: 22 PDF downloads: 27
Licencja
Utwór dostępny jest na licencji Creative Commons Uznanie autorstwa – Na tych samych warunkach 4.0 Miedzynarodowe.
Budownictwo i Architektura wspiera program otwartej nauki. Czasopismo umożliwia otwarty dostęp (Open Access) do publikacji. Każdy może przeglądać, pobierać i przekazywać artykuły pod warunkiem przestrzegania zasad licencji.
