Tensile Strength of Concrete: Double-Punch Test

Chen, Wai F.; Yuan, Rui

doi:10.1061/jsdeag.0005493

Cited by 51 publications

(15 citation statements)

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“…Moreover, Equation ( 2) yielded predicted values of the tensile strength which are very close to the experimental values of the double punch test procedure as can be seen in Table 4. As mentioned above in many previous studies [15][16][17][18][19][20][21], the double punch test showed very reliable results in terms of determining the tensile strength of steel fibre reinforced concrete. For this reason, an equation was suggested to show the relationship between the compressive strength and the double punch tensile strength of SFRGC.…”

Section: Compressive-tensile Strength Relationshipmentioning

confidence: 64%

“…Another indirect tensile strength test was suggested by Chen [17], commonly called Double Punch Test (DPT). Several studies were then assessed the Double Punch Test procedure reported in literature [18][19][20][21]. The DPT has the advantage of a smaller size of concrete sample and a more straightforward test procedure than the splitting test.…”

Section: Introduction Amentioning

confidence: 99%

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Evaluation of Steel Fiber Reinforced Geopolymer Concrete Made of Recycled Materials

Goaiz¹,

Shamsaldeen²,

Abdulrehman³

et al. 2022

IJE

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In the last few decades, the geopolymer concrete presented an evolution in civil engineering field. The current study aims to produce a low cost steel fiber reinforced geopolymer concrete with an ecceptable tensile properties. The experimental program aims to investigate the tensile behaviour of geopolymer concrete reinforced with steel fiber and made of recycled materials. The primary ingredients of the steel fiber reinforced geopolymer concrete in this study were waste materials. The recycled steel fiber was extracted from tires and chopped into tiny fibers with an average length of 20 mm and an average diameter of 0.7 mm. The geopolymer concrete in this study consisted of coarse aggregate, which was crushed recycled concrete. Also, the fine aggregate was crushed waste glass. In addition to the compressive strength, tensile test procedures such as splitting tensile strength, double punch tensile strength, and flexural tensile strength were all investigated in this study. Recycled steel fiber was compared to a new hooked-end steel fiber and hybrid steel fiber (50% new + 50% recycled) with three different volumetric percentages of steel fiber (0.5%, 1.0%, and 1.5%). The new steel fiber geopolymer concrete mix with 1.5% of steel fiber showed the highest test results among other mixes, as the tensile strength was increased by nearly 50% in the case of the double punch test. This conduct could be explained as the new steel fiber having a uniform, straight shape with hooked ends, increasing the anchorage between the fly ash binder and the steel fiber. In addition, the recycled steel fiber was contained some rubber crumbs that could be another reason that negatively affected the tensile properties of the geopolymer concrete.

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Section: Compressive-tensile Strength Relationshipmentioning

confidence: 64%

Section: Introduction Amentioning

confidence: 99%

Evaluation of Steel Fiber Reinforced Geopolymer Concrete Made of Recycled Materials

Goaiz¹,

Shamsaldeen²,

Abdulrehman³

et al. 2022

IJE

View full text Add to dashboard Cite

show abstract

“…This may be partially attributed to the difficulty of considering the change of the resistant mechanism that occurs during the fracture process observed during the test [2]. In fact, the expressions reported in the literature concern formulations to determine single values of the tensile strengths [3][4][5][6], which are also assumed for the post-cracking stage.…”

Section: Introductionmentioning

confidence: 99%

16 Assessment of constitutive model for ultra-high performance fiber reinforced cement composites using the Barcelona test

Blanco¹,

Cavalaro²,

Galeote³

et al. 2015

HPFRCC-7.

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The characterization of the post-cracking behavior of fiber reinforced cement composites (FRCC) represents a great challenge given the intrinsic scatter of the material and the need to use testing methods that are reliable and representative of the real-scale structure. The Barcelona test emerged as an alternative to other traditional testing methods that exhibit significant scatter and that are complex in terms of execution. Recently, a constitutive model analytically derived from the Barcelona test was developed and validated for conventional FRCC. The Barcelona test and the constitutive model combined provide a powerful tool for the design of this type of structures. Nevertheless, the applicability of this model to reproduce high and ultra-high performance FRCCs was not verified yet. The present study aims to validate the model by simulating the Barcelona test through finite element analysis and comparing the results with the experimental data obtained from steel and glass fibers mixes. In addition, the constitutive model derived of the Barcelona test is compared to the one included in the Model Code 2010, which is obtained through flexural tests of beams.

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“…However, bending tests tend to require relatively large specimens and specific testing apparatus that may not be readily available, limitating its applicability. In this sense, indirect tensile strength tests are developed and used for the same purpose -such as the the double-punch test (DPT) [109], the Montevideo test (MVD) [110], and the doubleedge wedgle splitting test (DEWS) [111].…”

Section: Tensile Parametersmentioning

confidence: 99%

The effect of fire on pre-cast steel fiber reinforced concrete for tunnel linings: from microstructure to structural simulation.

Serafini¹

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This study aims to evaluate the effect of elevated temperatures on the physical, mechanical, and microstructural properties of a hooked-end steel fiber for temperatures of 100, 350, 750, and 1000 °C. Results show that an oxidation layer is formed on the surface of the fibers exposed to temperatures of 750 °C and above, which leads to an increase in external diameter and mass. Reductions in tensile strength are directly proportional to the temperature increase, while rupture strain values significantly increase for temperatures above the recrystallization temperature of steel. The present study contributes to the understanding of the contribution of steel fibers to the overall behavior of the composite after temperature exposure and serve as input for recently developed numerical models.

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Tensile Strength of Concrete: Double-Punch Test

Cited by 51 publications

References 0 publications

Evaluation of Steel Fiber Reinforced Geopolymer Concrete Made of Recycled Materials

Evaluation of Steel Fiber Reinforced Geopolymer Concrete Made of Recycled Materials

16 Assessment of constitutive model for ultra-high performance fiber reinforced cement composites using the Barcelona test

The effect of fire on pre-cast steel fiber reinforced concrete for tunnel linings: from microstructure to structural simulation.

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