Use of P-Wave Velocity to Estimate the Strength of Hardened Self-Consolidating Concrete

Abstract:

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This paper investigates the feasibility of using the P-wave velocity measured by the impact-echo technique to estimate the strength of hardened self-consolidating concrete. The relationship between the through-transmission ultrasonic pulse velocity (UPV) and the strength of high performance concrete was established previously by performing experimental studies on water-cured cylinders made of concrete having variations in water-cementitious amterial ratio and aggregate content. However, the through-transmission UPV measurement is not applicable to concrete elements with only one accessible surface. In this paper, two plate-like specimens were made of self-consolidating concrete and they had different curing conditions. One specimen was immersed in water and the other was covered with wet gunny sack for 7 days. The impact-echo technique, one-sided wave velocity measurement technique, is adopted to determine the P-wave velocity of the plate-like concrete specimens at an age of 28 days. The difference between the impact-echo P-wave velocity (IE-PV) and the through-transmission ultrasonic pulse velocity (UPV) is studied. In addition, the measured IE-PV is used to estimate the strength of the plate-like concrete specimen and the estimated strength is verified by taking cores from the specimen.

Info:

Periodical:

Advanced Materials Research (Volumes 250-253)

Edited by:

Guangfan Li, Yong Huang and Chaohe Chen

Pages:

1025-1030

DOI:

10.4028/www.scientific.net/AMR.250-253.1025

Citation:

Y. C. Lin et al., "Use of P-Wave Velocity to Estimate the Strength of Hardened Self-Consolidating Concrete", Advanced Materials Research, Vols. 250-253, pp. 1025-1030, 2011

Online since:

May 2011

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Price:

$35.00

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