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Title: Influence of the cementitious paste composition on the E-modulus and heat of hydration evolutions

Abstract

E-modulus and heat of hydration are features of cement-based materials that follow a rapid rate of change at early ages. This paper analyses the influence of the composition of cementitious pastes on these features by using two methods: (i) a novel technique for continuously monitoring the E-modulus of cement-based materials, based on evaluating the first resonant frequency of a composite beam containing the material under testing, and (ii) an isothermal calorimeter to determine the released heat of hydration. Seventeen mixes are tested, encompassing pastes with five w/c ratios, as well as different contents of limestone filler, fly ash, silica fume and metakaolin. The results permit the comparison of the E-modulus and heat of hydration sensitivities to mix composition changes, and to check possible relations between these features. This work also helps to establish the technique (i) as a non-destructive method for monitoring the E-modulus evolution in cement-based materials since casting.

Authors:
 [1];  [2];  [1];  [1]
  1. LABEST, Laboratory for the Concrete Technology and Structural Behaviour, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto (Portugal)
  2. ISISE, Institute for Sustainability and Innovation in Structural Engineering, Universidade do Minho, Escola de Engenharia, Campus de Azurem, 4800-058 Guimaraes (Portugal)
Publication Date:
OSTI Identifier:
21576914
Resource Type:
Journal Article
Journal Name:
Cement and Concrete Research
Additional Journal Information:
Journal Volume: 41; Journal Issue: 8; Other Information: DOI: 10.1016/j.cemconres.2011.03.008; PII: S0008-8846(11)00084-6; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0008-8846
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 36 MATERIALS SCIENCE; CALORIMETERS; CALORIMETRY; CASTING; CASTINGS; CEMENTS; FLY ASH; HEAT; HYDRATION; LIMESTONE; MONITORING; SENSITIVITY; SILICA; TESTING; AEROSOL WASTES; ASHES; BUILDING MATERIALS; CARBONATE ROCKS; COMBUSTION PRODUCTS; ENERGY; FABRICATION; MATERIALS; MEASURING INSTRUMENTS; MINERALS; OXIDE MINERALS; RESIDUES; ROCKS; SEDIMENTARY ROCKS; SOLVATION; WASTES

Citation Formats

Maia, Lino, Azenha, Miguel, Faria, Rui, and Figueiras, Joaquim. Influence of the cementitious paste composition on the E-modulus and heat of hydration evolutions. United States: N. p., 2011. Web. doi:10.1016/j.cemconres.2011.03.008.
Maia, Lino, Azenha, Miguel, Faria, Rui, & Figueiras, Joaquim. Influence of the cementitious paste composition on the E-modulus and heat of hydration evolutions. United States. https://doi.org/10.1016/j.cemconres.2011.03.008
Maia, Lino, Azenha, Miguel, Faria, Rui, and Figueiras, Joaquim. 2011. "Influence of the cementitious paste composition on the E-modulus and heat of hydration evolutions". United States. https://doi.org/10.1016/j.cemconres.2011.03.008.
@article{osti_21576914,
title = {Influence of the cementitious paste composition on the E-modulus and heat of hydration evolutions},
author = {Maia, Lino and Azenha, Miguel and Faria, Rui and Figueiras, Joaquim},
abstractNote = {E-modulus and heat of hydration are features of cement-based materials that follow a rapid rate of change at early ages. This paper analyses the influence of the composition of cementitious pastes on these features by using two methods: (i) a novel technique for continuously monitoring the E-modulus of cement-based materials, based on evaluating the first resonant frequency of a composite beam containing the material under testing, and (ii) an isothermal calorimeter to determine the released heat of hydration. Seventeen mixes are tested, encompassing pastes with five w/c ratios, as well as different contents of limestone filler, fly ash, silica fume and metakaolin. The results permit the comparison of the E-modulus and heat of hydration sensitivities to mix composition changes, and to check possible relations between these features. This work also helps to establish the technique (i) as a non-destructive method for monitoring the E-modulus evolution in cement-based materials since casting.},
doi = {10.1016/j.cemconres.2011.03.008},
url = {https://www.osti.gov/biblio/21576914}, journal = {Cement and Concrete Research},
issn = {0008-8846},
number = 8,
volume = 41,
place = {United States},
year = {Mon Aug 15 00:00:00 EDT 2011},
month = {Mon Aug 15 00:00:00 EDT 2011}
}