Publication result detail

Fitting Function for Flexural Strength of Cement Paste

FICKER, T.

Original Title

Fitting Function for Flexural Strength of Cement Paste

English Title

Fitting Function for Flexural Strength of Cement Paste

Type

Paper in proceedings (conference paper)

Original Abstract

There are many analytical expressions for compressive strength as functions of porosity of cement-based materials but only a few such expressions exist for flexural strength of these materials. In the present paper a new functional candidate for fitting the data of flexural strength of hydrated Portland cement paste has been tested. The functional candidate has been initially derived for porous polymeric materials on the basis of the percolation theory. The parameters of this function have been optimized for the cement paste by using the Levenberg-Marquardt iterative fitting procedure. The optimized function has been capable of accurate reproducing all the measured flexural data. This fact has been confirmed by a high value of the correlation coefficient and rather low values of statistical uncertainties. It has been shown that this modified fitting function is well applicable to the pastes of ordinary Portland cements and probably to other cementitious materials, too.

English abstract

There are many analytical expressions for compressive strength as functions of porosity of cement-based materials but only a few such expressions exist for flexural strength of these materials. In the present paper a new functional candidate for fitting the data of flexural strength of hydrated Portland cement paste has been tested. The functional candidate has been initially derived for porous polymeric materials on the basis of the percolation theory. The parameters of this function have been optimized for the cement paste by using the Levenberg-Marquardt iterative fitting procedure. The optimized function has been capable of accurate reproducing all the measured flexural data. This fact has been confirmed by a high value of the correlation coefficient and rather low values of statistical uncertainties. It has been shown that this modified fitting function is well applicable to the pastes of ordinary Portland cements and probably to other cementitious materials, too.

Keywords

Flexural strength; fitting function; cement paste.

Key words in English

Flexural strength; fitting function; cement paste.

Authors

FICKER, T.

RIV year

2018

Released

28.11.2017

Publisher

IOPPublishing

Location

UK

Book

WMCAUS 2017 - Abstract Collection Book

ISBN

1757-8981

Periodical

IOP Conference Series: Materials Science and Engineering

Volume

245

Number

3

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

5

Pages count

5

URL

http://iopscience.iop.org/article/10.1088/1757-899X/245/3/032008

Full text in the Digital Library

http://hdl.handle.net/11012/137150

BibTex

@inproceedings{BUT141979,
  author="Tomáš {Ficker}",
  title="Fitting Function for Flexural Strength of Cement Paste",
  booktitle="WMCAUS  2017 - Abstract Collection Book",
  year="2017",
  journal="IOP Conference Series: Materials Science and Engineering",
  volume="245",
  number="3",
  pages="1--5",
  publisher="IOPPublishing",
  address="UK",
  doi="10.1088/1757-899X/245/3/032008",
  issn="1757-8981",
  url="http://iopscience.iop.org/article/10.1088/1757-899X/245/3/032008"
}

Documents

Ficker_2017_IOP_Conf._Ser.__Mater._Sci._Eng._245_032008