Estimation of fresh concrete temperature
DOI:
https://doi.org/10.31185/ejuow.Vol5.Iss2.59Keywords:
mixing water, Heat of Hydration, Fresh Concrete, Temperature, IceAbstract
ACI Committee 305 R proposed an equation for estimating temperature of fresh concrete with ice or without ice. Upon using the equation, it is shown that it is inaccurate. When using ice in percentage greater than 50 % of the mixing water , that equation gives irrational results. Also, ACI Equation under-estimates the actual temperature and it can be used with a little accuracy when using ice as a percentage of added mixing water at 20 % and lower. For more accuracy and rational results and at different percentages of ice to replace mixing water, an experimental test and theoretical analysis have led to a more accurate equation for estimating fresh concrete temperature.
References
[1] Mehta , P.K. , " Concrete : Properties and Materials," Prentice – Hall Inc. Englewood Cliffs, New Jersey, 1986, 450 pp.
[2] ACI Committee 305R, "Hot Weather Concreting," ACI Manual of Concrete Practice, Part 2, Construction Practices and Inspection Pavements, American Concrete Institute, Detroit, Michigan, 1987, 17 pp.
[3] ACI Committee 305, "Hot Weather Concreting," ACI Materials Journal, V.88, No.4, July-August 1991, pp. 417-436.
[4] ACI Committee 306, "Cold Weather Concreting," ACI Materials Journal , V.75, No.5, May 1978, pp. 161-183.
[5] Gaynor, R.D. ; Meininger, R.G. ; and Khan ,T.S. , " Effect of Temperature and Delivery Time on Concrete Properties, " Temperature Effects on Concrete, ASTM STP, T.R. Naik, Ed. , American Society for Testing and Materials, Philadelphia, 1985, pp. 68 – 87.
[6] Gaynor, N.J. ," Effect of Temperature on the Early-Ages Properties of Type I ,Type III and Type I/Fly Ash Concrete, " ACI Materials Journal, V.87, No.1, Jan. –Feb. 1990 , pp. 68-78.
[2] ACI Committee 305R, "Hot Weather Concreting," ACI Manual of Concrete Practice, Part 2, Construction Practices and Inspection Pavements, American Concrete Institute, Detroit, Michigan, 1987, 17 pp.
[3] ACI Committee 305, "Hot Weather Concreting," ACI Materials Journal, V.88, No.4, July-August 1991, pp. 417-436.
[4] ACI Committee 306, "Cold Weather Concreting," ACI Materials Journal , V.75, No.5, May 1978, pp. 161-183.
[5] Gaynor, R.D. ; Meininger, R.G. ; and Khan ,T.S. , " Effect of Temperature and Delivery Time on Concrete Properties, " Temperature Effects on Concrete, ASTM STP, T.R. Naik, Ed. , American Society for Testing and Materials, Philadelphia, 1985, pp. 68 – 87.
[6] Gaynor, N.J. ," Effect of Temperature on the Early-Ages Properties of Type I ,Type III and Type I/Fly Ash Concrete, " ACI Materials Journal, V.87, No.1, Jan. –Feb. 1990 , pp. 68-78.
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Published
2017-10-11
Issue
Section
Civil Engineering
How to Cite
Jabbar, A. M. (2017). Estimation of fresh concrete temperature. Wasit Journal of Engineering Sciences, 5(2), 55-63. https://doi.org/10.31185/ejuow.Vol5.Iss2.59
