Next Article in Journal
Conversion of a Direct to an Indirect Refrigeration System at Medium Temperature Using R-134a and R-507A: An Energy Impact Analysis
Previous Article in Journal
Stepwise Luneburg Lens for Bloch Surface Waves
Previous Article in Special Issue
Early Age Carbonation of Fiber-Cement Composites under Real Processing Conditions: A Parametric Investigation
Article Menu

Export Article

Open AccessArticle
Appl. Sci. 2018, 8(2), 246; doi:10.3390/app8020246

FE-Study on the Effect of Gradient Concrete on Early Constraint and Crack Risk

1
Institute of Structural Engineering; Department of Civil Engineering and Natural Hazards, University of Natural Resources and Life Sciences (BOKU), 1190 Wien, Austria
2
Ingwien.at Engineering Gmbh, 1010 Wien, Austria
*
Author to whom correspondence should be addressed.
Received: 29 November 2017 / Revised: 18 January 2018 / Accepted: 1 February 2018 / Published: 6 February 2018
View Full-Text   |   Download PDF [7530 KB, uploaded 6 February 2018]   |  

Abstract

In long-lasting mass concrete structures the desired material properties of the concrete mix to realize a durable concrete and a concrete surface without cracks conflict with each other. The requirement of concrete with high durability leads to high thermal energy release and therefore, as another consequence, to high crack risk. Crack reduction is achieved by use of concrete with low hydration energy, which on the other hand leads to a decrease in concrete durability. Besides from optimized base materials and concrete technology, a gradient material distribution in the cross-section could reduce the problem since durable concrete is needed near the surface and the requirement of low-hydration energy is located in the center of the member. A simplified model is used to investigate the possible effect of a gradient concrete material distribution in mass concrete structures on crack reduction. The results of the analysis show that gradient concrete might contribute to lowering the constraint stresses and therefore the crack risk during concrete hardening. View Full-Text
Keywords: gradient concrete; mass concrete; constraint; early age concrete; hydration; durability; crack risk; numerical simulation; performance-based design gradient concrete; mass concrete; constraint; early age concrete; hydration; durability; crack risk; numerical simulation; performance-based design
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Strieder, E.; Hilber, R.; Stierschneider, E.; Bergmeister, K. FE-Study on the Effect of Gradient Concrete on Early Constraint and Crack Risk. Appl. Sci. 2018, 8, 246.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top