Thermal Stress of Early-Age Concrete Made with Different Cement Compositions

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Abstract:

A temperature stress testing machine (TSTM) was used to investigate effect of cement composition and temperature history on thermal stress of concrete. Results show that the benefit of higher amount of C3S on concrete strength enhancement was compromised by the relatively higher temperature rise at early age, leading to a lower temperature difference. However, by means of a delicate design of cooling history, the deficiency of concrete with higher amount of C3S can be compensated and the cracking sensitivity was closer to that of concrete with lower amount of C3S.

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157-161

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June 2022

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© 2022 Trans Tech Publications Ltd. All Rights Reserved

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[1] Larson M (2003) Thermal crack estimation in early age concrete: models and methods for practical application,PhD dissertation, Lulea University of technology, Lulea, Sweden.

Google Scholar

[2] Li H, Tian Q, Zhao H, Lu A, and Liu J (2018) Temperature sensitivity of MgO expansive agent and its application in temperature crack mitigation in shiplock mass concrete. Construction and Building Materials, 170: 613-618.

DOI: 10.1016/j.conbuildmat.2018.02.184

Google Scholar

[3] See HT, Attiogbe EK and Miltenberger MA (2003) Shrinkage cracking characteristics of concrete using ring specimens. Materials Journal, 100(3): 239-245.

Google Scholar

[4] ASTM Standard (2009) Standard Specification for Portland Cement. ASTM International, West Conshohocken, PA, USA.

Google Scholar

[5] Zhu B (2013). Thermal stresses and temperature control of mass concrete. Butterworth-Heinemann, Oxford, UK.

Google Scholar

[6] Kovler K (1994) Testing system for determining the mechanical behaviour of early age concrete under restrained and free uniaxial shrinkage. Materials and structures, 27(6): 324-330.

DOI: 10.1007/bf02473424

Google Scholar

[7] Mehta PK and Monteiro P (2006) Concrete—microstructure, properties, and materials (3rd ed.). McGraw-Hill, NY, USA.

Google Scholar