STUDY ON ULTRA HIGH-STRENGTH CAST-IN-PLACE CONCRETE USING MINERAL ADMIXTURES : Effect of Using Different Mixing Methods on Flowability of Concrete

Kakizaki, Masayoshi; Edahiro, Hidetoshi

doi:10.3130/aijsx.401.0_11

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“…Graybeal [12] proposed a prediction equation for the elastic modulus of HSFRC with a compressive strength of less than 200 MPa. Kakizaki [17] also proposed a prediction equation of the elastic modulus using the compressive strength of high-strength concrete. In this study, an elastic modulus prediction equation is proposed as follows:…”

Section: Prediction Of the Elastic Modulusmentioning

confidence: 99%

Effects of Single and Hybrid Steel Fiber Lengths and Fiber Contents on the Mechanical Properties of High‐Strength Fiber‐Reinforced Concrete

Kim

Yang

Joh

2018

Advances in Civil Engineering

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is paper describes an experimental study on the mechanical properties of high-strength fiber-reinforced concrete (HSFRC). e experimental parameters included the content and length of the steel fiber as well as the use of either a single-type fiber or hybrid steel fibers. e steel fiber contents were 1.0, 1.5, and 2.0% based on the volume of HSFRC, and the steel fiber lengths were 13, 16.5, and 19.5 mm. In addition, hybrid steel fibers incorporating steel fibers of different lengths were used. Compression tests and crack mouth opening displacement tests were performed for each HSFRC mixture with different experimental parameters. e mechanical properties of the HSFRC, such as compressive strength, elastic modulus, and tensile strength, increased with the steel fiber content. e mechanical property results of the HSFRC mixture using a single fiber length of 13 mm were greater than the results of the other mixtures. e compressive strength, elastic modulus, and tensile strength of the HSFRC mixture with hybrid steel fibers were similar to those of the mixtures with a single length of steel fiber. Additionally, based on the test results of the material properties, equations for predicting the elastic modulus and tensile strength of the HSFRC were suggested; the predictions using the proposed formula closely agreed with the experimental results.

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Section: Prediction Of the Elastic Modulusmentioning

confidence: 99%

Effects of Single and Hybrid Steel Fiber Lengths and Fiber Contents on the Mechanical Properties of High‐Strength Fiber‐Reinforced Concrete

Kim

Yang

Joh

2018

Advances in Civil Engineering

View full text Add to dashboard Cite

show abstract

STUDY ON ULTRA HIGH-STRENGTH CAST-IN-PLACE CONCRETE USING MINERAL ADMIXTURES : Effect of Using Different Mixing Methods on Flowability of Concrete

Abstract: e)The amount ef air was set at 2-4 % foT both the base concrete and the supeiplasticized concrete.

Cited by 1 publication

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Effects of Single and Hybrid Steel Fiber Lengths and Fiber Contents on the Mechanical Properties of High‐Strength Fiber‐Reinforced Concrete

Effects of Single and Hybrid Steel Fiber Lengths and Fiber Contents on the Mechanical Properties of High‐Strength Fiber‐Reinforced Concrete

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