Size effect of test specimens on tensile splitting strength of concrete: general relation

Kadleček, Vl.; Modrý, S.

doi:10.1007/bf02482087

Cited by 56 publications

(28 citation statements)

References 4 publications

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“…There are three types of tests to measure strength in tension: direct tension, flexure, and splitting tension. 6 It has been well established that the simplest and the most reliable method, which generally provides a lower coefficient of variation, is the splitting tensile test [7][8][9] of a cylindrical specimen. In this test, a cylindrical specimen is loaded in compression diametrically between two plates.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Ratio between Splitting Tensile Strength and Compressive Strength for Concretes up to 120 MPa and its Application in Strength Criterion

2006

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A large-scale regression analysis was carried out using experimental data gathered from various sources to evaluate the ratio of splitting tensile strength to cylinder compressive strength as a function of compressive strength of concrete. The reliability of the proposed equation based on experimental data for compressive strength ranging between 4 and 120 MPa (580 to 17,400 psi) was assessed by means of the integral absolute error (IAE). It is also shown that, by only knowing compressive strength and the ratio of tensile to compressive strength, the failure envelope for very highstrength concrete can be established using Johnston's strength criterion without performing triaxial compression tests. A numerical example demonstrates the application of Johnston's strength criterion.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Ratio between Splitting Tensile Strength and Compressive Strength for Concretes up to 120 MPa and its Application in Strength Criterion

2006

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“…Advances in Materials Science and Engineering 5 [28], and Rocco et al [29,30] show that the tensile splitting strength of concrete is strongly determined by the size of test specimen. Wide range of experimental studies were carried out on cubes, cylinder, and prisms to investigate the size effect of tensile splitting strength by Kadleček et al [31]. It was demonstrated that the size effect highly depends on the areas of splitting fracture section rather than the shape of test specimens, which creates a unifying measurement for size effect.…”

Section: Strength Calculationmentioning

confidence: 99%

“…A generalized size effect formula was presented, which can be applied to cores or cubes obtained from existing structures. According to Kadleček et al [31], the tensile splitting strength of concrete cores was converted to the strength of standard test specimen (150 × 150 × 150 mm). The size effect formula is given as [31] = ts,cor…”

Section: Strength Calculationmentioning

confidence: 99%

Correlation between the Compressive, Tensile Strength of Old Concrete under Marine Environment and Prediction of Long-Term Strength

Yao

Jiang

Wei

et al. 2017

Advances in Materials Science and Engineering

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Compressive strength and tensile strength are important mechanical properties of concrete. The long-term strength of concrete under real service environment is an important parameter when evaluating existing buildings, which should also be properly considered in structural design. In this study, the relationship between compressive and splitting tensile strength of old concrete existing for long period under marine environment was investigated. At a deserted harbour, concrete cores samples were drilled by pairs in site. For each pair of samples, the two cores were drilled from the adjacent location and conducted to compressive, splitting tensile test, respectively. 48 compressive and splitting tensile strengths were finally obtained. From the test results, tensile strength presents general uptrend with compressive strength, and the two parameters are well positively correlated. Exponential model generally recommended by building codes or literatures is still capable of describing the relationship between compressive and tensile strength of old deteriorated concrete, when function parameters are properly determined. Based on statistical theory and the experimental result of this study, a method for predicting long-term tensile strength of concrete is developed and an example is given, which may provide a potential way to estimate long-term concrete strength under real marine environment.

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“…Similarly, Kadlecek et al . proposed some empirical formulas including size‐dependent responses for predicting the split‐tensile strength of the cube, cylinder and prism specimens. A recent approach also based on the redistribution of stress, by Karihaloo , predicts trends that are identical to those of Bazant's approach at the large‐scale end but differ from them when the structural size is small.…”

Section: Size Effect In Concrete Fracturesmentioning

confidence: 99%

The Effect of Size on the Splitting Strength of Cubic Concrete Members

İnce

Gör

Eren

et al. 2014

Strain

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In the study of concrete fractures, split-tension specimens, such as cylinders, cubes and diagonal cubes, are frequently preferred to beams. However, experimental investigations on concrete reveal that for the same specimen geometry, the nominal strength of specimen decreases with increasing specimen size. This phenomenon is named as the size effect in the fracture mechanics of concrete. Although nominal strength is also highly affected by the width of the distributed load in the split-tension cylinder and cube specimens, this effect can be negligible within the practical range of the load-distributed width in the diagonal cubes. However, the number of theoretical and experimental studies with diagonal split-tension specimens is limited. Besides, a size effect formula for estimating the split-tensile strength of the diagonal cube specimens has not been proposed. In this study, nine series of cube and diagonal cube specimens, with three different sizes but similar geometries, were tested under different load-distributed widths. The ultimate loads obtained from the test results are analysed by the modified size effect law. Subsequently, prediction formulas are proposed, and they are compared with historical test data from the split-cylinder specimens.

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Size effect of test specimens on tensile splitting strength of concrete: general relation

Cited by 56 publications

References 4 publications

Evaluation of Ratio between Splitting Tensile Strength and Compressive Strength for Concretes up to 120 MPa and its Application in Strength Criterion

Evaluation of Ratio between Splitting Tensile Strength and Compressive Strength for Concretes up to 120 MPa and its Application in Strength Criterion

Correlation between the Compressive, Tensile Strength of Old Concrete under Marine Environment and Prediction of Long-Term Strength

The Effect of Size on the Splitting Strength of Cubic Concrete Members

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