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Development of continuous surface wave system for stiffness testing

Zahari, Hidayat and Madun, Aziman and Ahmad Tajudin, Saiful Azhar and Baharuddin, Faizal Tajul and Dahlan, Samsul Haimi and Zainal Abidin, Mohd Hazreek and Jefferson, Ian (2014) Development of continuous surface wave system for stiffness testing. In: International Integrated Engineering Summit (IIES 2014), 1-4 December 2014, Universiti Tun Hussein Onn Malaysia, Johor.

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Abstract

The measurement of a small strain stiffness can be conducted via measuring the velocity of the material. The stiffness is an indicator for the strength of the material. It is important parameter to understand the response of the material when it received the loads. The seismic surface wave has an advantage technique to measure the stiffness of the materials due to factors of time consuming and non destructive method. In addition, the test can be conducted on the surface of the material, thus ease to conduct the test. The continuous surface wave is using a steady state seismic source which can be controlled it frequency. Thus, sufficient energy at specified frequency can be obtained. This can be influenced the quality and reliability of the data. In addition the stiffness at specified depth can be identified. In this paper, in-house development of the equipment and system was described. A few testing were conducted on different materials in order to assess the reliability of the developed system as well as the stiffness of the materials. As a result, the the stiffness assesment on the concrete mortar, asphalt pavement and concrete wall showed the values were in the range of 0.51 GPa to 0.72 GPa, 1.39 GPa to 1.76 GPa and 3.48 GPa to 3.78GPa respectively

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: continuous surface wave; stiffness; nondestructive test
Subjects: Q Science > QE Geology
Divisions: Faculty of Civil and Environmental Engineering > Department of Infrastructure and Geomatic Engineering
Depositing User: Mrs. Nurhayati Ali
Date Deposited: 08 Jun 2015 07:46
Last Modified: 08 Jun 2015 07:46
URI: http://eprints.uthm.edu.my/id/eprint/6588
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