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General Information
Editor-in-chief
Prof. T. Hikmet Karakoc
Anadolu University, Faculty of Aeronautics and Astronautics, Turkey

IJET 2017 Vol.9(6): 468-473 ISSN: 1793-8236
DOI: 10.7763/IJET.2017.V9.1018

Effect of Steam Curing on Initial Strength Development of Mortar

Nozomi Nakajima, Takayoshi Maruyama, Hiromitsu Koyama, and Shigeyuki Date
Abstract—The steam curing process is being applied to produce precast concrete to accelerate production cycle. A prediction of initial strength is required to determine optimized production cycle and provide economical mix proportions. As for this, the strength estimate by the Maturity method is being used widely so far. However, this method is pointed that the accuracy of the estimated strength of the concrete which has been steam cured is low. This is one of the problems on the precast concrete production. In this study, the relationship between initial strength at early age and effective material age calculated by Maturity method and Arrhenius’s law was evaluated. As a result, it showed a higher estimation accuracy of the Arrhenius’s law than the Maturity method. However, the accuracy of the prediction was different in each condition such as cement type, water-cement ratio, and steam curing temperature and material age.

Index Terms—Arrhenius`s law, compressive strength, effective material age, maturity method, mortar, steam curing.

Takayoshi Maruyama was with Tokai University of Civil Engineering. He is now with the Tsurumi concrete corporation, Department of Civil Engineering, Japan (e-mail: maruyama@tsuru-con.co.jp).
Hiromitsu Koyama was with Gunma University. He is now with the BASF Japan, Chigasaki Technical Development Center, Japan (e-mail: hiromitsu.koyama@basf.com).
Shigeyuki Date was with Nagasaki University. He is now with Tokai university as professor of Department of Civil Engineering, Japan (e-mail: sdat@tokai-u.jp)

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Cite: Nozomi Nakajima, Takayoshi Maruyama, Hiromitsu Koyama, and Shigeyuki Date, "Effect of Steam Curing on Initial Strength Development of Mortar," International Journal of Engineering and Technology vol. 9, no. 6, pp. 468-473, 2017.

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