Effect of coarse aggregate type on mechanical properties of concretes with different strengths

Journal Article · Sat Feb 01 04:00:00 EST 1997 · Cement and Concrete Research

DOI:https://doi.org/10.1016/S0008-8846(97)00006-9· OSTI ID:511875

Oezturan, T; Cecen, C ^[1]

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1. Bogazici Univ., Istanbul (Turkey). Civil Engineering Dept.

Tests were carried out to study the effect of the type of coarse aggregate on the compressive, flexural and splitting tensile strength on concrete produced at different strength levels. Concretes with 28 day target compressive strengths of 30, 60 and 90 MPa were produced using basalt, limestone and gravel coarse aggregates. The gravel aggregate concrete with 90 MPa target strength was also replicated by using a cement of higher strength, keeping the other parameters same. Twenty eight day test results have indicated that, in high strength concrete, basalt produced the highest, whereas gravel gave the lowest compressive strengths. Normal strength concretes made with basalt and gravel gave similar compressive strengths while the concrete containing limestone attained somewhat higher strength. Higher tensile strengths were obtained with crushed basalt and limestone compared to the gravel aggregate when used in high strength concrete. In the replicate mixture, approximately 30 percent increase in flexural and splitting tensile strengths were obtained as a result of using a stronger cement, while the compressive strength was not affected at all.

• OSTI ID: 511875
• Journal Information: Cement and Concrete Research, Journal Name: Cement and Concrete Research Journal Issue: 2 Vol. 27; ISSN 0008-8846; ISSN CCNRAI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BASALT
CEMENTS
COMPRESSION STRENGTH
CONCRETES
FLEXURAL STRENGTH
INTERFACES
LIMESTONE
MECHANICAL PROPERTIES
ROCKS
TENSILE PROPERTIES