Effect of aggregate maximum size upon compressive strength of concrete
Joint Authors
al-Barwari, Ismail H. Musa
al-Duski, Ziyad N. Shams al-Din
Askar, Lawind K.
Source
Issue
Vol. 20, Issue 1 العلوم الصرفة و الهندسية (30 Jun. 2017), pp.790-797, 8 p.
Publisher
Publication Date
2017-06-30
Country of Publication
Iraq
No. of Pages
8
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Economics & Business Administration
Abstract EN
Aggregates form 60% to 75% of concrete volume and thus influence its mechanical properties.
The strength of normal concrete is affected by the maximum size of a well-graded coarse aggregate by two opposing ways.
Concrete mixes containing larger aggregate particles needs less mixing water than those containing smaller aggregates.
On the other hand, the smaller size aggregates give larger surface area for bonding with the mortar matrix.
This study is a trial to cover these two points with testing three different useable concrete mixes in Kurdistan Region–Iraq which are 1:1.5:3, 1:2:4 and 1:3:6 (Cement: Sand: Gravel).
In each mix, five maximum aggregate sizes were used which are 9.5mm, 12.5mm, 19mm, 25mm and 37.5mm , the consistency of the all mixes is fixed for slumps of 25-50mm .
According to the test results it is concluded that in general the compressive strength of concrete increases when the maximum size of aggregate decreases and the maximum aggregate size strongly influences the concrete strength.
Test results also show that the optimum concrete strength is reached by using aggregates of 9.5mm maximum size.
We further concluded that for a specified strength, an economical mix can be produced by decreasing the amount of cement and using an appropriate maximum aggregate size.
American Psychological Association (APA)
al-Barwari, Ismail H. Musa& al-Duski, Ziyad N. Shams al-Din& Askar, Lawind K.. 2017. Effect of aggregate maximum size upon compressive strength of concrete. Journal of Dohuk University،Vol. 20, no. 1 العلوم الصرفة و الهندسية, pp.790-797.
https://search.emarefa.net/detail/BIM-793909
Modern Language Association (MLA)
al-Barwari, Ismail H. Musa…[et al.]. Effect of aggregate maximum size upon compressive strength of concrete. Journal of Dohuk University Vol. 20, no. 1 Pure and Engineering Sciences (Jun. 2017), pp.790-797.
https://search.emarefa.net/detail/BIM-793909
American Medical Association (AMA)
al-Barwari, Ismail H. Musa& al-Duski, Ziyad N. Shams al-Din& Askar, Lawind K.. Effect of aggregate maximum size upon compressive strength of concrete. Journal of Dohuk University. 2017. Vol. 20, no. 1 العلوم الصرفة و الهندسية, pp.790-797.
https://search.emarefa.net/detail/BIM-793909
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 796-797
Record ID
BIM-793909