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New predictive methodology for the apparent activation energy and strength of conventional and rapid hardening concretes

Saadoon, Tahseen; G�mez-Meijide, Breixo; Garcia, Alvaro

Authors

Tahseen Saadoon

Breixo G�mez-Meijide

Alvaro Garcia



Abstract

Cement concrete is one of the most used construction materials globally. Prediction of its mechanical performance during hydration contributes to reduced construction time and costs. In this sense, there are different predictive models based on the concept of apparent activation energy (Ea). However, although these methods are suitable for ordinary Portland cement (OPC), they are not appropriate for rapid hardening types, such as calcium aluminate (CAC) and calcium sulfoaluminate cement (CSA), as the hydration products of CAC are different depending on the curing temperature. Hence, this paper proposes a new model based on the composition of cement, curing temperature, finesses and water to cement ratio. The results showed that the proposed model fits the experimental data significantly better than current methods for the mentioned types of cement cured at a wide range of temperatures.

Citation

Saadoon, T., Gómez-Meijide, B., & Garcia, A. (2019). New predictive methodology for the apparent activation energy and strength of conventional and rapid hardening concretes. Cement and Concrete Research, 115, 264-273. https://doi.org/10.1016/j.cemconres.2018.10.020

Journal Article Type Article
Acceptance Date Oct 19, 2018
Online Publication Date Nov 2, 2018
Publication Date Jan 7, 2019
Deposit Date Jan 9, 2019
Journal Cement and Concrete Research
Print ISSN 0008-8846
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 115
Pages 264-273
DOI https://doi.org/10.1016/j.cemconres.2018.10.020
Public URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-85055751390&doi=10.1016%2fj.cemconres.2018.10.020&partnerID=40&md5=54552b614e528f8851c6bff3fb6d222e
Publisher URL https://www.sciencedirect.com/science/article/pii/S0008884618304903
Additional Information This article is maintained by: Elsevier; Article Title: New predictive methodology for the apparent activation energy and strength of conventional and rapid hardening concretes; Journal Title: Cement and Concrete Research; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.cemconres.2018.10.020; Content Type: article; Copyright: © 2018 Elsevier Ltd. All rights reserved.

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