Publication result detail

Numerical Analysis of Shrinkage Process Based on Experimental Data

KUCHARCZYKOVÁ, B.; ŠIMONOVÁ, H.; FRANTÍK, P.; KOCÁB, D.

Original Title

Numerical Analysis of Shrinkage Process Based on Experimental Data

English Title

Numerical Analysis of Shrinkage Process Based on Experimental Data

Type

WoS Article

Original Abstract

This paper focuses on the comparison of experimentally obtained data with the shrinkage model B4 designed by a research group led by Professor Z. P. Bažant. Two cementitious materials, one having a high water-cement ratio (w/c) and one having a low w/c, were prepared for the experiment. Intentionally, the test specimens were not protected from drying during the entire period of measurement. Test results confirmed that the actual shrinkage process as measured does not correspond with the prediction model, especially during its early age. Shrinkage during the plastic and semi-plastic stages of the solidification process is not reflected in the predicted shrinkage curve. However, if the start time of the evaluation of the experimental data corresponds to the time of maximum derivatives of the temperature, length changes, and ultrasonic pulse velocity curves, better correspondence between the experiment and prediction model is observed for material with a low w/c. However, this approach does not improve the correspondence between the experiment and numerical prediction in the case of material with a high w/c.

English abstract

This paper focuses on the comparison of experimentally obtained data with the shrinkage model B4 designed by a research group led by Professor Z. P. Bažant. Two cementitious materials, one having a high water-cement ratio (w/c) and one having a low w/c, were prepared for the experiment. Intentionally, the test specimens were not protected from drying during the entire period of measurement. Test results confirmed that the actual shrinkage process as measured does not correspond with the prediction model, especially during its early age. Shrinkage during the plastic and semi-plastic stages of the solidification process is not reflected in the predicted shrinkage curve. However, if the start time of the evaluation of the experimental data corresponds to the time of maximum derivatives of the temperature, length changes, and ultrasonic pulse velocity curves, better correspondence between the experiment and prediction model is observed for material with a low w/c. However, this approach does not improve the correspondence between the experiment and numerical prediction in the case of material with a high w/c.

Keywords

cementitious; shrinkage; mass losses; ultrasonic pulse velocity; experiment; numerical model B4; prediction.

Key words in English

cementitious; shrinkage; mass losses; ultrasonic pulse velocity; experiment; numerical model B4; prediction.

Authors

KUCHARCZYKOVÁ, B.; ŠIMONOVÁ, H.; FRANTÍK, P.; KOCÁB, D.

RIV year

2021

Released

30.10.2020

Publisher

American Concrete Institute

Location

United States

ISBN

0889-325X

Periodical

ACI MATERIALS JOURNAL

Volume

117

Number

5

State

United States of America

Pages from

39

Pages to

49

Pages count

11

URL

https://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&ID=51724622

BibTex

@article{BUT161193,
  author="Barbara {Kucharczyková} and Hana {Šimonová} and Petr {Frantík} and Dalibor {Kocáb}",
  title="Numerical Analysis of Shrinkage Process Based on Experimental Data",
  journal="ACI MATERIALS JOURNAL",
  year="2020",
  volume="117",
  number="5",
  pages="39--49",
  doi="10.14359/51724622",
  issn="0889-325X",
  url="https://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&ID=51724622"
}