Relationship Between Compressive Strength and Various Mechanical Properties of High Strength Concrete

Noguchi, Takafumi; Tomosawa, Fuminori

doi:10.3130/aijs.60.11_3

Cited by 32 publications

(10 citation statements)

References 1 publication

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“…8, no test specimen was found to exhibit a significant decrease in splitting tensile strength compared with compressive strength. The splitting tensile strength is well matched by the existing regression equation (Noguchi et al 1995). This fact indicates that compressive and tensile strength are lowered at the same level.…”

Section: Experiments On Mechanical Propertiessupporting

confidence: 64%

Application of Conventionally Recycled Coarse Aggregate to Concrete Structure by Surface Modification Treatment

Tsujino

Noguchi

Takao

et al. 2007

ACT

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128

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This paper aims to establish a technique for easy concrete recycling as a solution essential for the creation of a closedloop recycling society. The technique introduced in this study enables improvement of the recovery rate of original aggregate by enhancing the peeling-off effect of aggregate without any degradation of mechanical properties. The enhanced peeling-off effect is realized by applying a surface improving agent to the aggregate. In this paper, material tests were conducted on recycled aggregates with low quality and middle quality. In the test, two types of surface improving agent, an oil-type improving agent and a silane-type improving agent, were used. The test results have shown that the recycled aggregate finished with silane-type improving agent was greatly improved in recovery rate but showed lowered strength. On the other hand, the recycled aggregate finished with oil-type improving agent was somewhat superior in recovery rate compared with non-finished aggregate. In addition the oil-type improving agent improved hardening properties. Flexural tests of reinforced concrete beams were conducted only for the oil-type improving agent. Consequently, the possible applicability of recycled aggregate finished with oil-type surface improving agent was verified.

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Section: Experiments On Mechanical Propertiessupporting

confidence: 64%

Application of Conventionally Recycled Coarse Aggregate to Concrete Structure by Surface Modification Treatment

Tsujino

Noguchi

Takao

et al. 2007

ACT

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128

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“…8, where numerical result with a prediction formula is also displayed (Noguchi and Tomosawa 1995). It is shown that relationship between compressive strength and splitting tensile strength of BFS concrete can also be approximately predicted with an existing prediction formula shown in equation (4).…”

Section: { }mentioning

confidence: 99%

Quantitative Evaluation of Crack Resistance Mechanism of Blast Furnace Slag Blended Cement Concrete via Restrained Shrinkage Stress Analysis

Kanda

Momose

Imamoto

et al. 2015

ACT

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Application of blast-furnace slag blended cement is an important option to reduce carbon dioxide emission peculiar to concrete materials in construction, and concrete structures using the blended cement concrete (hereafter denoted as BFS concrete) is in great demand. However, shrinkage cracking resistance of BFS concrete decreases at high temperatures. In this study, mechanisms of the reduction of cracking resistance at high temperatures were investigated aiming at the control of shrinkage cracking of BFS concrete as the final goal. Constitutive material properties necessary for restrained shrinkage stress analysis were derived through experiments including such as restrained cracking test under a temperature of 30, 20 and 10°C, free shrinkage test, and compressive creep test. On the basis of the constitutive material properties obtained with the above tests, applicability of existing restrained shrinkage stress analysis to BSF concrete was examined. Analytical results indicate that the stress analysis was found to reproduce the cracking behavior at an ambient temperature from 10 to 20°C. However, at an ambient temperature of 30°C, the analysis overestimates restrained shrinkage stress, which is considered due to underestimating creep effects. This underestimation may occur due to surface micro-cracks eminently generated on surface.

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“…The relationship between compressive strength and flexural strength (modulus of rupture) is given by Eq.2 (Noguchi and Tomosawa 1995a).…”

Section: Relationship Between Flexural Strength and Compressive Strengthmentioning

confidence: 99%

“…Relationship between splitting tensile strength and compressive strength is approximated by Eq.1 (Noguchi and Tomosawa 1995a).…”

Section: Relationship Between Splitting Tensile Strength and Compressmentioning

confidence: 99%

Mechanical Properties of Concrete and Reinforcement

Nishiyama

2009

ACT

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Sub-working group 1 of the Japan Concrete Institute (JCI) committee on Utilization of High-Strength Concrete (HSC) and High-Performance Concrete (HPC) (JCI-TC063A) has been working on collecting information from research on HSC and HPC as well as their practical use. The committee published a report in 2006 in Japanese. The objective of the report is to present state-of-the-art information on concrete with strengths in excess of about 60 MPa and high-strength steel reinforcement such as prestressing steel, excluding concrete made with atypical materials, such as fibers, or uncommon techniques. It primarily addresses the mechanical properties of high-strength concrete and high-strength steel reinforcement. A concise digest of the report has already been published as a keynote paper in the proceedings of 8th International Symposium on Utilization of HSC and HPC in October 2008 in Tokyo. This paper is based on the keynote paper with additional information on High Strength Steel, HSS, reinforcing bars in Japan.

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Relationship Between Compressive Strength and Various Mechanical Properties of High Strength Concrete

Cited by 32 publications

References 1 publication

Application of Conventionally Recycled Coarse Aggregate to Concrete Structure by Surface Modification Treatment

Application of Conventionally Recycled Coarse Aggregate to Concrete Structure by Surface Modification Treatment

Quantitative Evaluation of Crack Resistance Mechanism of Blast Furnace Slag Blended Cement Concrete via Restrained Shrinkage Stress Analysis

Mechanical Properties of Concrete and Reinforcement

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