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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Effects of water/cement ratio on early age hydration phases composition and strength development of concrete in thermal environment
Author(s): Fengchen Zhang, Lingling Ai and Dejian Shen
Publication: China Concrete and Cement Products
Issue: No.5 2010(Total 175)
Appears on pages(s): 7-10
Keywords: Thermal environment, Water to cement ratio, Early age, Strength development, Hydration phases composition
Abstract:Cement hydration at early age is in a certain temperature field because of hydration heat of mass concrete as well as ce-ment productions curing with high temperature.Therefore phases composition and strength development in thermal environment are com-monly different from those in normal curing conditions.Phases composition and strength development at early age of concrete with differ-ent water to cement ratio(w/c) cured in different thermal environment are studied,and the brittleness is evaluated by means of tensile-splitting strength to compressive strength ratio.Experimental results show that compressive strength of concrete with different w/c are im-proved with the increase of curing temperature.Tensile-splitting strength increases most at 50℃ and decreases when the curing tempera-ture continued to increase.Moreover,tensile-splitting strength of concrete with lower w/c decreases obviously.In lower temperature envi-ronment,the w/c has little effects on phases composition,while in higher temperature environment,phases composition varies with the w/ c. To order a copy of this publication EMail CCPA at Qinghuan Zhang