eprintid: 7209 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/72/09 datestamp: 2023-11-09 16:19:00 lastmod: 2023-11-09 16:19:00 status_changed: 2023-11-09 16:08:45 type: article metadata_visibility: show creators_name: Lai, G.T. creators_name: Rafek, A.G. creators_name: Serasa, A.S. creators_name: Hussin, A. creators_name: Ern, L.K. title: Use of ultrasonic velocity travel time to estimate uniaxial compressive strength of granite and schist in Malaysia ispublished: pub keywords: compressive strength; correlation; granite; rock mechanics; schist; travel time; ultrasonics; wave velocity, Malaysia note: cited By 14 abstract: The uniaxial compressive strength (UCS) is one of the most common mechanical parameters required in geotechnical engineering to characterize the compressive strength of rock material. Measurements of UCS are expensive, time consuming, destructive and thus, not favorable in the presence of limited samples. Therefore, a simple yet practical application is needed for the estimation of UCS. This research presents two correlations to predict UCS values for granite and schist by using ultrasonic velocity travel time (tp) from ultrasonic tests. The validity of the practical approach presented in this research is confirmed based on the strong correlations developed from the experimental tests conducted. For the entire data set, the correlation between UCS and ultrasonic velocity travel time was expressed as UCS = 217.2 e-0.016(tp) for granite and UCS = 1110.6 e-0.037(tp) for schist and the coefficient of determination (R2) value for both granite and schist is 0.93. These correlations may be useful for applications related to geotechnical engineering designs. date: 2016 publisher: Penerbit Universiti Kebangsaan Malaysia official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962225774&partnerID=40&md5=5e86b89461c2d3969ca91c866d07e8ad full_text_status: none publication: Sains Malaysiana volume: 45 number: 2 pagerange: 185-193 refereed: TRUE issn: 01266039 citation: Lai, G.T. and Rafek, A.G. and Serasa, A.S. and Hussin, A. and Ern, L.K. (2016) Use of ultrasonic velocity travel time to estimate uniaxial compressive strength of granite and schist in Malaysia. Sains Malaysiana, 45 (2). pp. 185-193. ISSN 01266039