Temperature Field of Concrete Cured in Winter Conditions Using Thermal Control Measures

Table 3

Key concrete temperature data at core measurement location T3.

Specimen no.	Peak hydration heat (°C)	Average heating rate (°C/h)	Temperature at 5 d (°C)	Average cooling rate (°C/h)	Maximum internal/external temperature difference (°C)	Temperature at 7 d (°C)
1	30.3	0.82	3.8	0.27	2.7	−1.3
2	66.3	1.89	60.2	0.78	4.7	14.9
3	54.6	1.82	39.4	0.66	15.3	2.3
4	68.0	1.92	60.3	0.80	7.3	15.4