A Comparative Study the Effect of Aggregate Type on the Strength and Abrasion Resistance of Concrete, Kurdistan Region, Iraq
This research assessed the utilization of substantial limestone and marlstone outcrop aggregates surrounding the city of Koya in the Shiranish Formation for building and concrete work. This study examines the effects of using two types of locally accessible aggregates on compressive strength qualiti...
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| Format: | Article |
| Language: | English |
| Published: |
Erbil Polytechnic University
2023-11-01
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| Series: | Polytechnic Journal |
| Subjects: | |
| Online Access: | https://polytechnic-journal.epu.edu.iq/home/vol13/iss2/10 |
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| Summary: | This research assessed the utilization of substantial limestone and marlstone outcrop aggregates surrounding the city
of Koya in the Shiranish Formation for building and concrete work. This study examines the effects of using two types
of locally accessible aggregates on compressive strength qualities in the concrete mix as a partial replacement for using
typical coarse aggregates to determine the acceptability of using the aggregates for typical concrete production. Physicomechanical and chemical properties of the aggregates were investigated in a preliminary laboratory study shows that the
average values of dry density, water absorption, porosity, moisture content, point load index, compressive strength and
aggregate abrasion value (AAV) of the limestone and marlstone are (2.38g/cm3, 4.4 %, 10.46 %, 0.71 %, 4.14 MPa,
93.1 MPa, 18.2 %) and (2.45g/cm3, 3.25 %, 7.97 %, 0.65 %, 1.84 MPa, 41.7 MPa, 36.9 %) respectively. Simple regression
analysis has been used to illustrate how physical and mechanical properties are related. Concrete with a nominal mix
ratio of 1:2:4 was used for this research, and mix compositions were determined using the absolute volume method. In
order to monitor the compressive strength at 28 days, 15 cubes (10 £ 10 £ 10 cm) of each type of coarse aggregate were
cast. This provided as a guidance for people using concrete as to the best alternative fine aggregate for concrete productions. All parameter values were compared to each other and to the BS, ASTM, and NZGS standards for their
qualification as an aggregate source for domestic building and highway pavement. |
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| ISSN: | 2707-7799 |