Publication detail

The Volume Changes of Cement Composites in the Early Stage of Setting and Hardening

KUCHARCZYKOVÁ, B. TOPOLÁŘ, L. DANĚK, P. KOCÁB, D. KAREL, O. MISÁK, P.

Original Title

The Volume Changes of Cement Composites in the Early Stage of Setting and Hardening

Type

abstract

Language

English

Original Abstract

The article deals with the volume changes of the cement composites. It presents the results of an experimental assessment of the development of cement composite volume changes especially in the early stage of their setting and hardening. The measurement of shrinkage was performed using a modified test device made by Schleibinger Geräte Teubert u. Greim GmbH. Shrinkage drains of 1000 mm in length and with 60x100 mm in cross-section were used for recording the length changes measured along the central axis of the specimen. The drains were filled with concrete and placed onto a special weighing table which allowed continuous recording of mass losses caused by free drying of the specimen surfaces. In this way, the mass losses and changes in the length of the concrete in the shrinkage drains were measured simultaneously. Along with this measurement, the acoustic emission method was employed for the continuous non-destructive monitoring of changes in the internal structure, especially at an early age. The outputs of the measurement are presented as diagrams which display the relationship between the relative length changes, mass losses and the time of cement composites ageing. Events recorded by means of acoustic emission and temperature measured inside the specimens are also presented in the paper.

Keywords

volume changes, mass losses, shrinkage, swelling, acoustic emission,

Authors

KUCHARCZYKOVÁ, B.; TOPOLÁŘ, L.; DANĚK, P.; KOCÁB, D.; KAREL, O.; MISÁK, P.

Released

28. 9. 2016

Publisher

Institute of Metals and Technology, Ljubljana, Slovenia

Location

Ljubljana, Slovenia

ISBN

978-961-94088-0-3

Book

Program and book of abstracts 24th Int. Conf. on Materials and Technology

Edition number

1

Pages from

108

Pages to

108

Pages count

1

URL

http://icmt24.com/e_files/content/Book%20of%20Abstracts.pdf

BibTex

@misc{BUT130080,
  author="Barbara {Kucharczyková} and Libor {Topolář} and Petr {Daněk} and Dalibor {Kocáb} and Ondřej {Balkanský} and Petr {Misák}",
  title="The Volume Changes of Cement Composites in the Early Stage of Setting and Hardening",
  booktitle="Program and book of abstracts 24th Int. Conf. on Materials and Technology",
  year="2016",
  edition="1",
  pages="108--108",
  publisher="Institute of Metals and Technology, Ljubljana, Slovenia",
  address="Ljubljana, Slovenia",
  isbn="978-961-94088-0-3",
  url="http://icmt24.com/e_files/content/Book%20of%20Abstracts.pdf",
  note="abstract"
}