Effect of size on the response of cylindrical concrete samples under cyclic loading

Sinaie, Sina; Heidarpour, Amin; Zhao, Xiao Ling; Sanjayan, Jay

doi:10.1016/j.conbuildmat.2015.03.076

Cited by 80 publications

(22 citation statements)

References 20 publications

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“…Literature indicates that, generally, smaller test specimens lead to greater strength, as indicated in studies of Cupertino et al [11] and Kaish et al [12]. There are studies indicating that stresses and deformations peak decrease when ratio height/thickness is reduced, leading to greater strengths [13]. According to Kaish et al [12], concrete specimens confinement also leads to greater strength, more accentuated in low ratio height/thickness specimens.…”

Section: Literature Reviewmentioning

confidence: 94%

Experimental and numerical evaluation of mortar specimens shape and size influence on compression tests

Capraro

Argenta

et al. 2019

Rev. IBRACON Estrut. Mater.

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The axial compressive strength of cementitious compounds is an important parameter for classification, quality assessment and material design. The values obtained in tests are influenced due intrinsic properties of the compounds and external factors such specimen size and shape. The present work aims to evaluate experimentally and numerically using finite element method, the specimen shape and dimension influence over results of the mortar axial compressive strength test. The specimen geometry aspects are cubic, (4x4x4) cm, column with height/thickness ratio equals two prismatic, (4x4x8) cm, beam with height/thickness ratio equals one prismatic also with dimensions (4x4x8) cm however tested with horizontal 8 cm dimension and 5 cm diameter cylindrical with 5 cm and 10 cm of height. Specimen material are strong and weak mortar. We tested five specimen of every mortar strength one for each geometry therefore ten specimen total at 28 days of age. The cylindrical specimen resulted in lower mechanical strength among all geometry. Between cylindrical ones the results exibited equivalent strength however, among prismatic and cubic ones the strength results diverged. Ones with height/thickness ratio equals one, i.e., cubic and beam, resulted in higher strength then one with height/thickness ratio equals two, named column. Numerical simulations verify these results indicating equally height/thickness ratio equals one geometry with higher strength. This could be happening because in height/thickness ratio equals one geometry the maximum principal stress values (tractions) are lower.

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Section: Literature Reviewmentioning

confidence: 94%

Experimental and numerical evaluation of mortar specimens shape and size influence on compression tests

Capraro

Argenta

et al. 2019

Rev. IBRACON Estrut. Mater.

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“…e plastic strain is the accumulated residual axial strain of concrete when the load is unloaded to zero [37]. At present, various formulae for the relationship between plastic strain and envelope unloading strain in the literature have been proposed [18][19][20]. In this work, from a regression analysis, the power function (y � px q ) proposed by Bahn and Hsu [18] is used, where the parameter p is a coefficient of plastic strain and the parameter q is an optimum order which controls the curvature of the relationship curve.…”

Section: Plastic Strainmentioning

confidence: 99%

“…Research results on the stress deterioration of uniaxial cyclic compression have shown that the stress of a reloading branch is less than the envelope unloading stress at the same unloading strain [14][15][16][17][18][19][20]. In this work, a parameter φ is introduced to quantify the stress deterioration ratio [43] shown in Figure 10 and de ned as the following:…”

Section: Stress Deteriorationmentioning

confidence: 99%

“…It has to be mentioned that the cyclic stress-strain relation of BFRC plays an important role in the elastoplastic analysis of concrete members and directly determines the ductile and hysteretic behaviors of concrete structures subjected to seismic, explosive, and fatigue loads [11,12]. Considerable efforts have been made to investigate the mechanical behaviors of plain and confined concrete under uniaxial cyclic loading [13][14][15][16][17][18][19][20][21][22][23][24][25]. e corresponding empirical constitutive models and formulae for generalizing the cyclic stress-strain responses of plain and confined concrete have been well established [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

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Stress‐Strain Relation of Steel‐Polypropylene‐Blended Fiber‐Reinforced Concrete under Uniaxial Cyclic Compression

Chi

et al. 2018

Advances in Materials Science and Engineering

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This paper investigates the cyclic stress-strain behavior of steel-polypropylene-blended fiber-reinforced concrete (BFRC) under uniaxial cyclic compression. A total of 48 prism specimens were tested for different fiber volume fractions and aspect ratios. The results show that the introduction of blended fibers has synergetic effects on improving the cyclic behavior of concrete in terms of peak strength, postpeak ductility, hysteretic energy dissipation, and stiffness degradation. Moreover, the increase in the volume fractions of both steel and polypropylene fibers can lead to a remarkable decrease in plastic strain accumulation. Furthermore, the stiffness degradation ratio as well as the stress deterioration ratio of BFRC can be significantly alleviated in comparison with those of plain concrete, notwithstanding that the degradation amount is insensitive to the variations of fiber parameters. Subsequently, based on the test results, a constitutive model is developed to generalize the cyclic stress-strain responses of BFRC, with the contributions of blended fibers taken into account. The developed model is then verified by independent experimental results and other test data reported in the literature. It is observed that the prediction yields a close estimation of the cyclic compressive behavior of BFRC with varying fiber parameters.

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“…In this regard, vast literature is available for compressive strength of concrete, see, e.g. references [5][6][7][8][9][10][11][12][13][14][15]. The research suggests that concrete is anisotropic in compressive strength.…”

Section: Introductionmentioning

confidence: 99%

Effect of Compaction during Casting on Anisotropic Compressive Strength of Baked Clay

Zardari

Lakho

2018

Teh. vjesn.

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Due to high cost of aggregates and cement in plains of Pakistan, there is an overwhelming need to investigate structural properties of Reinforced Baked Clay (RBC) as a possible substitute of Reinforced Cement Concrete (RCC) for construction of low cost houses. In this paper, direction dependent cube crushing strength of baked clay is investigated. For this purpose, baked clay beams were cast by applying compactive pressure of intensity from 0 to 7 MPa. The clay beams were fired at a temperature of 1000 °C. Cubes were cut from these baked clay beams. The cubes were tested for compressive strength in directions, i.e., parallel and perpendicular to casting layers. Anisotropy was observed in compressive strength of baked clay cubes. The baked clay showed anisotropic behaviour in compressive strength in general. However, the anisotropy in compressive strength was decreased by increasing compactive pressure at the time of casting of clay beams. Average crushing strength of baked clay cubes tested in a direction parallel to casting layers was found to be 35 MPa, and that of perpendicular to casting layers was 30 MPa. The magnitude of compressive strength of baked clay is 1.5 times higher than that of normal concrete.

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Effect of size on the response of cylindrical concrete samples under cyclic loading

Cited by 80 publications

References 20 publications

Experimental and numerical evaluation of mortar specimens shape and size influence on compression tests

Experimental and numerical evaluation of mortar specimens shape and size influence on compression tests

Stress‐Strain Relation of Steel‐Polypropylene‐Blended Fiber‐Reinforced Concrete under Uniaxial Cyclic Compression

Effect of Compaction during Casting on Anisotropic Compressive Strength of Baked Clay

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