Ultrasonic sound speed of hydrating calcium sulphate hemihydrate; part 2, the correlation of sound velocity to hydration degree

A.C.J. de Korte, Jos Brouwers

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

12 Downloads (Pure)

Abstract

In this article the sound velocity through a mix is correlated to the hydration degree of the mix. Models are presented predicting the sound velocity through fresh slurries and hardened products. These two states correspond to the starting and finishing point of the hydration process. The present research shows that a linear relation between the amount of hydration-product (gypsum) formed (Smith et al., 2002) and sound velocity can be used to describe this process. To this end, the amount of hydration-product formed is determined by the using the equations of Schiller (1974) for the hydration process and of Brouwers (2010) for the volume fractions of binder, water and hydration products during the hydration process. The presented model shows that the induction time and gypsum growth rate are linear related to the water/gypsum-ratio.
Original languageEnglish
Title of host publicationProceedings of the Weimar gypsum conference. 30 -31 March 2011, Weimar, Germany
EditorsH.B Fischer, C. Matthes, C. Beuthan
Place of PublicationWeimar, Germany
PublisherF.A. Finger Institut für Baustoffkunde
Pages65-71
ISBN (Print)978-3-00-034074-1
Publication statusPublished - 30 Mar 2011

Publication series

Name
PublisherF.A. Finger - Institut fur Baustoffkunde

Fingerprint

sound velocity
hydration
calcium
sulfate
gypsum
speed
sound
water
product

Keywords

  • IR-77512
  • METIS-275315

Cite this

de Korte, A. C. J., & Brouwers, J. (2011). Ultrasonic sound speed of hydrating calcium sulphate hemihydrate; part 2, the correlation of sound velocity to hydration degree. In H. B. Fischer, C. Matthes, & C. Beuthan (Eds.), Proceedings of the Weimar gypsum conference. 30 -31 March 2011, Weimar, Germany (pp. 65-71). Weimar, Germany: F.A. Finger Institut für Baustoffkunde.
de Korte, A.C.J. ; Brouwers, Jos. / Ultrasonic sound speed of hydrating calcium sulphate hemihydrate; part 2, the correlation of sound velocity to hydration degree. Proceedings of the Weimar gypsum conference. 30 -31 March 2011, Weimar, Germany. editor / H.B Fischer ; C. Matthes ; C. Beuthan. Weimar, Germany : F.A. Finger Institut für Baustoffkunde, 2011. pp. 65-71
@inproceedings{389e558916d54907bd4b1bdecc89c49f,
title = "Ultrasonic sound speed of hydrating calcium sulphate hemihydrate; part 2, the correlation of sound velocity to hydration degree",
abstract = "In this article the sound velocity through a mix is correlated to the hydration degree of the mix. Models are presented predicting the sound velocity through fresh slurries and hardened products. These two states correspond to the starting and finishing point of the hydration process. The present research shows that a linear relation between the amount of hydration-product (gypsum) formed (Smith et al., 2002) and sound velocity can be used to describe this process. To this end, the amount of hydration-product formed is determined by the using the equations of Schiller (1974) for the hydration process and of Brouwers (2010) for the volume fractions of binder, water and hydration products during the hydration process. The presented model shows that the induction time and gypsum growth rate are linear related to the water/gypsum-ratio.",
keywords = "IR-77512, METIS-275315",
author = "{de Korte}, A.C.J. and Jos Brouwers",
year = "2011",
month = "3",
day = "30",
language = "English",
isbn = "978-3-00-034074-1",
publisher = "F.A. Finger Institut f{\"u}r Baustoffkunde",
pages = "65--71",
editor = "H.B Fischer and C. Matthes and C. Beuthan",
booktitle = "Proceedings of the Weimar gypsum conference. 30 -31 March 2011, Weimar, Germany",

}

de Korte, ACJ & Brouwers, J 2011, Ultrasonic sound speed of hydrating calcium sulphate hemihydrate; part 2, the correlation of sound velocity to hydration degree. in HB Fischer, C Matthes & C Beuthan (eds), Proceedings of the Weimar gypsum conference. 30 -31 March 2011, Weimar, Germany. F.A. Finger Institut für Baustoffkunde, Weimar, Germany, pp. 65-71.

Ultrasonic sound speed of hydrating calcium sulphate hemihydrate; part 2, the correlation of sound velocity to hydration degree. / de Korte, A.C.J.; Brouwers, Jos.

Proceedings of the Weimar gypsum conference. 30 -31 March 2011, Weimar, Germany. ed. / H.B Fischer; C. Matthes; C. Beuthan. Weimar, Germany : F.A. Finger Institut für Baustoffkunde, 2011. p. 65-71.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

TY - GEN

T1 - Ultrasonic sound speed of hydrating calcium sulphate hemihydrate; part 2, the correlation of sound velocity to hydration degree

AU - de Korte, A.C.J.

AU - Brouwers, Jos

PY - 2011/3/30

Y1 - 2011/3/30

N2 - In this article the sound velocity through a mix is correlated to the hydration degree of the mix. Models are presented predicting the sound velocity through fresh slurries and hardened products. These two states correspond to the starting and finishing point of the hydration process. The present research shows that a linear relation between the amount of hydration-product (gypsum) formed (Smith et al., 2002) and sound velocity can be used to describe this process. To this end, the amount of hydration-product formed is determined by the using the equations of Schiller (1974) for the hydration process and of Brouwers (2010) for the volume fractions of binder, water and hydration products during the hydration process. The presented model shows that the induction time and gypsum growth rate are linear related to the water/gypsum-ratio.

AB - In this article the sound velocity through a mix is correlated to the hydration degree of the mix. Models are presented predicting the sound velocity through fresh slurries and hardened products. These two states correspond to the starting and finishing point of the hydration process. The present research shows that a linear relation between the amount of hydration-product (gypsum) formed (Smith et al., 2002) and sound velocity can be used to describe this process. To this end, the amount of hydration-product formed is determined by the using the equations of Schiller (1974) for the hydration process and of Brouwers (2010) for the volume fractions of binder, water and hydration products during the hydration process. The presented model shows that the induction time and gypsum growth rate are linear related to the water/gypsum-ratio.

KW - IR-77512

KW - METIS-275315

M3 - Conference contribution

SN - 978-3-00-034074-1

SP - 65

EP - 71

BT - Proceedings of the Weimar gypsum conference. 30 -31 March 2011, Weimar, Germany

A2 - Fischer, H.B

A2 - Matthes, C.

A2 - Beuthan, C.

PB - F.A. Finger Institut für Baustoffkunde

CY - Weimar, Germany

ER -

de Korte ACJ, Brouwers J. Ultrasonic sound speed of hydrating calcium sulphate hemihydrate; part 2, the correlation of sound velocity to hydration degree. In Fischer HB, Matthes C, Beuthan C, editors, Proceedings of the Weimar gypsum conference. 30 -31 March 2011, Weimar, Germany. Weimar, Germany: F.A. Finger Institut für Baustoffkunde. 2011. p. 65-71