Models for predicting free water and specific heat of pastes containing ground granulated blast furnace slag

Arosha Dabarera, Warangkana Saengsoy, Kanako Mori, Somnuk Tangtermsirikul

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper aims to investigate early age behavior in terms of free water content and specific heat for hardening cement paste incorporating Ground Granulated Blast Furnace Slag. Experiments were conducted to obtain free water and specific heat of slag-cement pastes by varying water to binder ratios and slag replacement levels. Free water to total binder ratios for pastes with w/b of 0. 40 and slag replacements of 45% and 75% are 0. 23 and 0. 25 at 3 days and 0. 17 and 0. 19 at 28 days, respectively. Specific heat values for similar mixtures are 0. 26 and 0. 30 at 3 days and 0. 23 and 0. 25 at 28 days. Results showed that specific heat decreases as the amount of free water decreases. The slag substitution resulted in high specific heat and free water at early age but tends to decrease in long term due to enhanced reaction kinetics. Models were proposed to compute free water and specific heat by modifying existing models. The model simulations can be used to predict the measured values accurately.

Original languageEnglish
Title of host publicationComposite Materials and Material Engineering
EditorsJ.J. Delaunay, J.H. Zhou, L. Lu
PublisherTRANS TECH PUBLICATIONS LTD
Pages135-139
Number of pages5
ISBN (Print)9783038357308
DOIs
Publication statusPublished - 2016
EventInternational Conference on Composite Materials and Material Engineering, 2016 - Bangkok, Thailand
Duration: 9 Mar 201111 Mar 2011

Publication series

NameMaterials Science Forum
Volume860
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

ConferenceInternational Conference on Composite Materials and Material Engineering, 2016
Country/TerritoryThailand
CityBangkok
Period9/03/1111/03/11

Keywords

  • Free water
  • Slag
  • Specific heat

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