Experimental investigation of the effects of aggregate size distribution on the fracture behaviour of high strength concrete

Atur Siregar; Muhammad Rafiq; Mike Mulheron

doi:10.1016/j.conbuildmat.2017.05.142

Experimental investigation of the effects of aggregate size distribution on the fracture behaviour of high strength concrete

Atur Siregar, Muhammad Rafiq, Mike Mulheron

Research output: Contribution to journal › Article › peer-review

Abstract

This paper examines the influence of different aggregate size distributions on the fracture behaviour of high strength concrete. Three-point bend test was performed on 63 notched beams casted using three aggregate size distributions and two water to binder ratios. The total fracture energy, GF, and critical stress intensity factor, KIC, were used to determine the fracture characteristic of concrete. The results show that the values of GF decrease substantially with increasing coarseness of aggregate grain structure, λ. Values of KIC also decreased but demonstrated only limited dependence on λ. In contrast, reducing the total w/b ratio substantially increases the value of KIC but had no measurable effect on GF.

Original language	English
Pages (from-to)	252-259
Number of pages	8
Journal	Construction and Building Materials
Volume	150
DOIs	https://doi.org/10.1016/j.conbuildmat.2017.05.142
Publication status	Published - 9 Jun 2017

Bibliographical note

Keywords

Aggregate size distribution
Aggregate grading
Fracture energy
Stress intensity factors
Size effect

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00_Atur Rafiq and Mulheron Final after review (2).pdfAccepted author manuscript, 552 KBLicence: CC BY-NC-ND

Imran Rafiq
- M.Rafiqbrighton.acuk
- School of Arch, Tech and Eng - Associate Dean Education and Student Exp
- Centre for Earth Observation Science
- Construction Engineering and Management Research and Enterprise Group
- Sustainability and Resilience Engineering Research and Enterprise Group
- Advanced Engineering Centre
Person: Academic

Cite this

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title = "Experimental investigation of the effects of aggregate size distribution on the fracture behaviour of high strength concrete",

abstract = "This paper examines the influence of different aggregate size distributions on the fracture behaviour of high strength concrete. Three-point bend test was performed on 63 notched beams casted using three aggregate size distributions and two water to binder ratios. The total fracture energy, GF, and critical stress intensity factor, KIC, were used to determine the fracture characteristic of concrete. The results show that the values of GF decrease substantially with increasing coarseness of aggregate grain structure, λ. Values of KIC also decreased but demonstrated only limited dependence on λ. In contrast, reducing the total w/b ratio substantially increases the value of KIC but had no measurable effect on GF.",

keywords = "Aggregate size distribution, Aggregate grading, Fracture energy, Stress intensity factors, Size effect",

author = "Atur Siregar and Muhammad Rafiq and Mike Mulheron",

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T1 - Experimental investigation of the effects of aggregate size distribution on the fracture behaviour of high strength concrete

AU - Siregar, Atur

AU - Rafiq, Muhammad

AU - Mulheron, Mike

PY - 2017/6/9

Y1 - 2017/6/9

N2 - This paper examines the influence of different aggregate size distributions on the fracture behaviour of high strength concrete. Three-point bend test was performed on 63 notched beams casted using three aggregate size distributions and two water to binder ratios. The total fracture energy, GF, and critical stress intensity factor, KIC, were used to determine the fracture characteristic of concrete. The results show that the values of GF decrease substantially with increasing coarseness of aggregate grain structure, λ. Values of KIC also decreased but demonstrated only limited dependence on λ. In contrast, reducing the total w/b ratio substantially increases the value of KIC but had no measurable effect on GF.

AB - This paper examines the influence of different aggregate size distributions on the fracture behaviour of high strength concrete. Three-point bend test was performed on 63 notched beams casted using three aggregate size distributions and two water to binder ratios. The total fracture energy, GF, and critical stress intensity factor, KIC, were used to determine the fracture characteristic of concrete. The results show that the values of GF decrease substantially with increasing coarseness of aggregate grain structure, λ. Values of KIC also decreased but demonstrated only limited dependence on λ. In contrast, reducing the total w/b ratio substantially increases the value of KIC but had no measurable effect on GF.

KW - Aggregate size distribution

KW - Aggregate grading

KW - Fracture energy

KW - Stress intensity factors

KW - Size effect

U2 - 10.1016/j.conbuildmat.2017.05.142

DO - 10.1016/j.conbuildmat.2017.05.142

M3 - Article

VL - 150

SP - 252

EP - 259

JO - Construction and Building Materials

JF - Construction and Building Materials

SN - 0950-0618

ER -

Experimental investigation of the effects of aggregate size distribution on the fracture behaviour of high strength concrete

Abstract

Bibliographical note

Keywords

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Imran Rafiq

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