Issue |
MATEC Web Conf.
Volume 195, 2018
The 4th International Conference on Rehabilitation and Maintenance in Civil Engineering (ICRMCE 2018)
|
|
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Article Number | 01005 | |
Number of page(s) | 8 | |
Section | Construction Materials | |
DOI | https://doi.org/10.1051/matecconf/201819501005 | |
Published online | 22 August 2018 |
Modulus elasticity of the graded concrete, a preliminary research
1
Department of Civil Engineering, Faculty of Engineering, Universitas Negeri Malang, Indonesia
2
Department of Civil Engineering, Faculty of Engineering, Diponegoro University, Indonesia
3
Department of Architecture, College of Engineering, Nihon University, Koriyama, Japan
4
School of Engineering and Physical Science, University of Birmingham, The United Kingdom
* Corresponding author: mirza.abdillah.ft@um.ac.id
The elastic modulus of materials plays a role in determining the stiffness of a structural element and its level of serviceability. Previous research indicates that the concrete modulus of elasticity could be improved by combining 2 (two) concrete mixes using a gradual compacting method. In this study, the effect of different concrete strength combinations to the resulting modulus of elasticity is examined. Three types of concrete mixes with a strength of 30 MPa, 40 MPa and 50 MPa are prepared. The graded concrete is moulded in cylindrical concrete casts (150 mm x 300 mm) with the following casting configurations: 30-40 MPa, 30-50 MPa, and 40-50 MPa. The static modulus of elasticity test is performed at an age of 28 days using compressometers in accordance with ASTM C469. The test results show that the modulus of elasticity of the graded concrete is proportionally influenced by the stiffness of the higher and the lower concrete material. Additionally, the resulting compressive strength of the graded concrete is determined by the lower concrete strength.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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