MATEC Web Conf.
Volume 163, 2018MATBUD’2018 – 8th Scientific-Technical Conference on Material Problems in Civil Engineering
|Number of page(s)||10|
|Section||New Generation Concretes|
|Published online||15 June 2018|
Influence of the w/c ratio and aggregate composition on the autogenous shrinkage in self-consolidating concrete
Faculty of Civil Engineering and Architecture, West Pomeranian University of Technology, Piastów 50, Szczecin, Poland
* Corresponding author: firstname.lastname@example.org
Paper presents the analysis of shrinkage development in selfconsolidating concretes (SCC). Concretes were cured for 28 day in an insulated environment. The shrinkage was tested on 35x150x1150 mm samples. The specimen had the same volume as ring specimen proposed in the ASTM method of testing the susceptibility of concretes to cracking caused by the restricted radial shrinkage. Linear deformation of concrete samples was measured in constant periods of 500 s using dial gauges with digital data loggers. Conducted tests showed the influence of w/c ratio of 0.28, 0.34, 0.42 and aggregate composition on the development of the autogenous shrinkage in self-consolidating concretes. Additionally, rheological properties of the concrete mixes were tested and compressive and splitting strength was determined. Conducted research allowed to evaluate the influence of w/c ratio and natural aggregate composition on the development of autogenous shrinkage in different stages of curing of SCC.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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