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Simultaneous Measurement Of Deformation And Temperature Of High-Strength Concrete At Very Early Age To Determine The Initial And The Finial Setting Time, Shu-Ken Lin, Chung-Ho Huang, Chao-Shun Chang, Tsong Yen, Chung-Hao Wu, Yiching Lin
Simultaneous Measurement Of Deformation And Temperature Of High-Strength Concrete At Very Early Age To Determine The Initial And The Finial Setting Time, Shu-Ken Lin, Chung-Ho Huang, Chao-Shun Chang, Tsong Yen, Chung-Hao Wu, Yiching Lin
Journal of Marine Science and Technology
The interior shrinkage deformation and temperature change of high-strength concrete (HSC) at very early age, i.e., the first 24 h from casting, and up to an age of 72 h was investigated experimentally using optic fibre sensors (SOFO) and thermally sensitive resistors. The initial and the final setting times of HSC were also investigated. Results show that two turning points (I and II) on the development curve of deformation, both represent the onsets of the variation of rigidity in fresh HSC, can be recognized as the initial and the final setting times, which are evaluated around 4.5 h to 5.7 …