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Title: Adaptation of the standard EN 196-1 for mortar with accelerator
Authors: Galobardes, Isaac
Salvador, Renan P.
Cavalaro, Sergio H.
de Figueiredo, Antonio
Goodier, Chris I.
Keywords: Mortar
Compressive strength
Issue Date: 2016
Publisher: © Elsevier
Citation: GALOBARDES, I. ... et al, 2016. Adaptation of the standard EN 196-1 for mortar with accelerator. Construction & Building Materials, 127, pp. 125-136.
Abstract: In certain applications, accelerators are added to favour a rapid evolution of mechanical properties in mortar and concrete. In order to assure adequate performance, it is necessary to test the compatibility between the accelerator and other components of the mixture. The EN 934-5 establishes that such evaluation of accelerators should be performed according with the procedure established in the EN 196-1. However, this standard does not take into account the inclusion of the accelerators or the particularities of the mortar produced with these admixtures. The objective of this paper is to adapt the EN 196-1 in order to characterize the strength of mortars with accelerator. First, an experimental parametric study to evaluate the influence of the production procedure on the results was conducted. Based on the results obtained, a modified production process was proposed. Then, a wide experimental program including a total of 40 mixes of mortars with different formulations and contents of accelerators was performed. Based on a statistical analysis, a new admissible variation used to calculate the compressive strength was proposed.
Description: This paper was accepted for publication in the journal Construction & Building Materials and the definitive published version is available at http://dx.doi.org/10.1016/j.conbuildmat.2016.09.147
Sponsor: This research was possible due to the project RTC-2015-3185-4 (MAPMIT), co-funded by the Ministerio de Economía y Competitividad of Spain in the Call Restos-Colaboración 2015 and by the European Union through FEDER funds under the objective of promoting the technological development, innovation and high quality research.
Version: Accepted for publication
DOI: 10.1016/j.conbuildmat.2016.09.147
URI: https://dspace.lboro.ac.uk/2134/22890
Publisher Link: http://dx.doi.org/10.1016/j.conbuildmat.2016.09.147
ISSN: 0950-0618
Appears in Collections:Published Articles (Architecture, Building and Civil Engineering)

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