Engineering Properties of Basalt Coarse Aggregates in Hamdan Area, NW Sana’a, Yemen
Abstract
Sana’a city has been growing fast vertically and horizontally to provide housing, business and other facilities to the ever in. This work was undertaken to determine the quality of basalt coarse aggregate in Hamdan area, NW Sana’a. It included field work which consisted of collection of basalt aggregate samples and hand specimens. The study covered coarse aggregates from one of the main crushers in the vicinity of Sana’a city, about 12 km NW of Sana’a. The objective of this study is to determine the physical and mechanical properties of basalt coarse aggregates and comparison of the results with the standards. Chemical composition of basalt was determined by the X-ray fluorescence (XRF). The thin sections show that the studied basalt is mainly composed of calcic plagioclase and augite with few olivine. The types of testing required are gradation, specific gravity, water absorption, flakiness and elongation, Los Angeles abrasion value, aggregate impact value soundness and alkali-silica reactivity. The results showed that, the basalt coarse aggregates in Hamdan area comply with the international standards.
Keywords
References
- Aitcin, P.C., Mehta, P.K., 1990. Effects of coarse aggregate characteristics on Mechanical properties of high strength concrete, ACI materials Journal, 87 (2), 103-107.
- ASTM C 33-01. Standard specification for concrete aggregate. Annual book of ASTM standards.
- ASTM C 88-99. Standard test method for soundness of aggregates by use of sodium sulfate or magnesium sulfate. Annual book of ASTM standards.
- ASTM C 127-01. Standard test method for density, relative density (specific gravity), and absorption of coarse aggregate. Annual book of ASTM standards.
Details
Primary Language
English
Subjects
Geological Sciences and Engineering (Other)
Journal Section
Research Article
Authors
Publication Date
December 15, 2018
Submission Date
September 19, 2017
Acceptance Date
May 1, 2018
Published in Issue
Year 2018 Volume: 42 Number: 2