Using ultrasound to monitor stiffening process of concrete with admixtures

Julie R. Rapoport; John S. Popovics; Subramaniam V. Kolluru; Surendra P. Shah

Using ultrasound to monitor stiffening process of concrete with admixtures

Julie R. Rapoport, John S. Popovics, Subramaniam V. Kolluru, Surendra P. Shah

Research output: Contribution to journal › Article › peer-review

Abstract

A nondestructive one-sided wave reflection factor (WRF) test was applied to concrete with a variety of admixtures, including an accelerator, silica fume as replacement, a high-range water-reducing admixture, and a retarder. Tlie results are presented herein. The WRF test is sensitive to the presence of admixtures. In addition to WRF tests, dynamic modulus tests were performed on normal- and high-strength concretes. Tlie results from these tests are correlated with the results from the WRF tests. A neir, objective method for determining the time of occurrence of critical points on the WRF curve was developed. Tlie critical WRF points were found to correlate well with critical points in set time and cement hydration processes.

Original language	English (US)
Pages (from-to)	675-683
Number of pages	9
Journal	ACI Structural Journal
Volume	97
Issue number	6
State	Published - 2000
Externally published	Yes

Keywords

Admixture
Concrete
Ultrasonic

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction

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abstract = "A nondestructive one-sided wave reflection factor (WRF) test was applied to concrete with a variety of admixtures, including an accelerator, silica fume as replacement, a high-range water-reducing admixture, and a retarder. Tlie results are presented herein. The WRF test is sensitive to the presence of admixtures. In addition to WRF tests, dynamic modulus tests were performed on normal- and high-strength concretes. Tlie results from these tests are correlated with the results from the WRF tests. A neir, objective method for determining the time of occurrence of critical points on the WRF curve was developed. Tlie critical WRF points were found to correlate well with critical points in set time and cement hydration processes.",

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T1 - Using ultrasound to monitor stiffening process of concrete with admixtures

AU - Rapoport, Julie R.

AU - Popovics, John S.

AU - Kolluru, Subramaniam V.

AU - Shah, Surendra P.

PY - 2000

Y1 - 2000

N2 - A nondestructive one-sided wave reflection factor (WRF) test was applied to concrete with a variety of admixtures, including an accelerator, silica fume as replacement, a high-range water-reducing admixture, and a retarder. Tlie results are presented herein. The WRF test is sensitive to the presence of admixtures. In addition to WRF tests, dynamic modulus tests were performed on normal- and high-strength concretes. Tlie results from these tests are correlated with the results from the WRF tests. A neir, objective method for determining the time of occurrence of critical points on the WRF curve was developed. Tlie critical WRF points were found to correlate well with critical points in set time and cement hydration processes.

AB - A nondestructive one-sided wave reflection factor (WRF) test was applied to concrete with a variety of admixtures, including an accelerator, silica fume as replacement, a high-range water-reducing admixture, and a retarder. Tlie results are presented herein. The WRF test is sensitive to the presence of admixtures. In addition to WRF tests, dynamic modulus tests were performed on normal- and high-strength concretes. Tlie results from these tests are correlated with the results from the WRF tests. A neir, objective method for determining the time of occurrence of critical points on the WRF curve was developed. Tlie critical WRF points were found to correlate well with critical points in set time and cement hydration processes.

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KW - Ultrasonic

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Using ultrasound to monitor stiffening process of concrete with admixtures

Abstract

Keywords

ASJC Scopus subject areas

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