Pilot Study of the Effect of Admixtures in Fine-Grained Cement-Based Composites on Volume Changes and Fracture Parameters

Vlastimil Bílek Jr.; Libor Topolář; Hana Šimonová; Barbara Kucharczyková; Ivana Havlíková; Lubos Pazdera; Zbyněk Keršner

doi:10.4028/www.scientific.net/AMR.969.294

Paper Titles

Narrow Reinforced Concrete Slabs after their Flexural Destruction
p.271

Nonlinear Analysis of Underground Walls in Interaction with Subgrade
p.276

Numerical and Experimental Models of Load on Buldings from the Effects of the Atmospheric Wind
p.280

Parameter Study of Asymptotic Sampling for Truss Structures Reliability
p.288

Pilot Study of the Effect of Admixtures in Fine-Grained Cement-Based Composites on Volume Changes and Fracture Parameters
p.294

Probabilistic Simulation of the Mechanical Response of a Pre-Stressed Railway Sleeper: Initiation and Propagation of Cracks during Static Test
p.298

ProbCalc - An Efficient Tool for Probabilistic Calculations
p.302

Problems with Variability in Using Fly Ash in Mixed Cement
p.308

Remarks to the Complex Modelling of Concrete Structures: From Experiment to Reliability Assesment
p.312

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 969Pilot Study of the Effect of Admixtures in...

Pilot Study of the Effect of Admixtures in Fine-Grained Cement-Based Composites on Volume Changes and Fracture Parameters

Abstract:

The partial replacement of cement in concrete by an alternative admixture is a current topic in materials engineering. In order to examine the effect of replacing 20 % of the weight of Portland cement in fine-grained concrete using selected admixtures on volume changes and mechanical fracture parameter values, a set of specimens was fabricated from these quasi-brittle materials. Granulated blast-furnace slag, high-temperature fly ash, metakaolin and specially selected combinations of them were used as admixtures. Three-point bending fracture tests were conducted on these specimens and load versus crack mouth opening displacement (PCMOD) diagrams were recorded during the testing. In this paper, the outputs of the double-K fracture model were used for the prediction of beginning of stable crack propagation in fine-grained cement-based composites with admixtures.

You might also be interested in these eBooks

Structural and Physical Aspects of Civil Engineering

View Preview

Info:

Periodical:

Advanced Materials Research (Volume 969)

Pages:

294-297

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.969.294

Citation:

Cite this paper

Online since:

June 2014

Authors:

Vlastimil Bílek Jr., Libor Topolář, Hana Šimonová, Barbara Kucharczyková, Ivana Havlíková, Lubos Pazdera, Zbyněk Keršner*

Keywords:

Double-K Model, Fine-Grained Cement-Based Composite, Fly Ash (FA), Fracture Test, Impact-Echo, Metakaolin (MK), Slag

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] M. Thomas, The effect of supplementary cementing materials on alkali-silica reaction: A review, Cement and Concrete Research. 41 (2011) 1224–1231.

DOI: 10.1016/j.cemconres.2010.11.003

Google Scholar

[2] M. Sansalone, N. J. Carino, Impact-Echo: A Method for Flaw Detection in Concrete Using Transient Stress Waves, National Bureau of Standards, Gaithersburg, Maryland, (1986).

DOI: 10.6028/nbs.ir.86-3452

Google Scholar

[3] S. Kumar, S. Barai, Concrete Fracture Models and Applications, Springer, Berlin, (2011).

Google Scholar

[4] X. Zhang, S. Xu, A comparative study on five approaches to evaluate double-K fracture toughness parameters of concrete and size effect analysis, Engineering Fracture Mechanics. 78, (2011) 2115-2138.

DOI: 10.1016/j.engfracmech.2011.03.014

Google Scholar