Article_vF-2.pdf (1.65 MB)
Download fileMaturity method to predict the evolution of the properties of sprayed concrete
journal contribution
posted on 2015-05-14, 10:47 authored by Isaac Galobardes, Sergio Pialarissi-CavalaroSergio Pialarissi-Cavalaro, Chris GoodierChris Goodier, Simon Austin, Angel RuedaThe maturity method provides a simple approach for assessing the strength evolution of concrete. Although it is already used in the precast industry, no reported applications with sprayed concrete may be found in the literature. Such concrete presents singular characteristics due to the spraying process and, in some cases, due to the introduction of accelerators that modify the kinetics of cement hydration. Consequently, the traditional equations that relate the evolution of mechanical properties and the maturity index might not apply in this case. The objective of this study is to adapt the maturity method to sprayed concrete. An experimental program was conducted with 24 concrete mixes sprayed in laboratory and tested for the evolution of temperature and compressive strength. An alternative equation was proposed to relate the maturity index and the mechanical properties. Subsequently, finite element models were developed to generalize the maturity curves considering the local design parameters.
Funding
The authors of this study would like to thank the Universitat Politècnica de Catalunya and the Col·legi d’Enginyers de Camins, Canals i Ports de Catalunya for their financial support.
History
School
- Architecture, Building and Civil Engineering
Published in
Construction and Building MaterialsVolume
79Pages
357 - 369Citation
GALOBARDES, I. ... et al, 2015. Maturity method to predict the evolution of the properties of sprayed concrete. Construction and Building Materials, 79, pp. 357 - 369Publisher
© Elsevier LtdVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2015ISSN
0950-0618Publisher version
Language
- en