Publication detail

Experimental Investigation of the Chemical Shrinkage of the Cement Paste Based on the Calorimetric and Ultrasonic Measurement

KUCHARCZYKOVÁ, B. KOCÁB, D. HALAMOVÁ, R. ŠIMONOVÁ, H. ROVNANÍKOVÁ, P.

Original Title

Experimental Investigation of the Chemical Shrinkage of the Cement Paste Based on the Calorimetric and Ultrasonic Measurement

Type

abstract

Language

English

Original Abstract

The paper deals with the experimental investigation of the chemical shrinkage of hydraulic cement paste. The measurements were aimed at the determination of heat flow and hydration heat using the isothermal calorimetry and determination of the ultrasonic (US) pulse velocity using the test device based on the longitudinal waves measurement and equipped with the thermal sensor. The measurements were performed on the test specimens prepared from Portland cement CEM I 42.5R and water with w/c ratio of 0.40, 0.33 and 0.50. The chemical shrinkage was determined in compliance with the ASTM C1608-17. The main objective of the experiments was to find the relationships between the results obtained using the above mentioned testing techniques. The pilot results show the close relationship between the heat flow, evolution of the internal temperature measured inside the test specimen and US transit time determined by the continual measurement on the test specimen during early maturation. The results also indicate that the prediction of chemical shrinkage based on the US pulse velocity corresponds very closely with the experimental data. The results of performed measurements will be used for the specification of the correction factors in the shrinkage prediction models.

Keywords

Cement, cement paste, chemical shrinkage, calorimetry, ultrasonic method.

Authors

KUCHARCZYKOVÁ, B.; KOCÁB, D.; HALAMOVÁ, R.; ŠIMONOVÁ, H.; ROVNANÍKOVÁ, P.

Released

8. 10. 2018

Publisher

Federation internationale du beton (fib)

Location

Melbourne, Australia

ISBN

978-1-877040-14-6

Book

Proceedings for the 2018 fib Congress held in Melbourne

Pages from

514

Pages to

515

Pages count

2

BibTex

@misc{BUT150456,
  author="Barbara {Kucharczyková} and Dalibor {Kocáb} and Romana {Halamová} and Hana {Šimonová} and Pavla {Rovnaníková}",
  title="Experimental Investigation of the Chemical Shrinkage of the Cement Paste Based on the Calorimetric and Ultrasonic Measurement",
  booktitle="Proceedings for the 2018 fib Congress held in Melbourne",
  year="2018",
  pages="514--515",
  publisher="Federation internationale du beton (fib)",
  address="Melbourne, Australia",
  isbn="978-1-877040-14-6",
  note="abstract"
}