A New Safety Factor Prediction Model for Mass Concrete Surface Cracking in Early Age

Table 9

Main materials’ parameters of different concrete materials.

Material number	Adiabatic temperature (°C); 𝜃(𝜏)=𝑇0×(1−𝑒^−𝑎𝜏𝑏)			Elastic module (GPa); 𝐸(𝜏)=𝐸0×(1−𝑒^−𝑎1𝜏𝑏1)			Tensile strength (MPa); 𝑓𝑡(𝜏)=𝑓0×(1−𝑒^−𝑎2𝜏𝑏2)
	𝜃0	𝑎	𝑏	𝐸0	𝑎1	𝑏1	𝑓0	𝑎2	𝑏2
1	23.0	0.202	0.900	33.72	0.652	0.219	2.96	0.078	0.749
2	28.0	0.209	0.936	47.64	0.545	0.270	4.20	0.100	0.700
3	27.5	0.385	0.613	44.64	0.287	0.408	2.73	0.252	0.500
4	17.5	0.198	0.804	38.88	0.431	0.307	2.39	0.040	0.880
5	21.4	0.302	0.689	43.80	0.428	0.315	2.57	0.060	0.825
6	22.9	0.221	0.665	47.04	0.269	0.436	2.76	0.087	0.737
7	20.4	0.282	0.621	45.96	0.245	0.450	2.62	0.064	0.805