Experimental Study on the Effect of Freeze-Thaw Cycles on Axial Tension and Compression Performance of Concrete after Complete Carbonization

Table 6

Parameters of uniaxial compression curve for prismatic specimens of different grades of concrete.

Specimen number	a	R^2	b	R^2
30C0F0	1.4914	0.993	2.4407	0.983
30CF0	1.7456	0.995	2.2948	0.990
30CF25	1.0213	0.997	2.3781	0.990
30CF50	0.5041	0.996	2.7846	0.991
30CF75	0.3268	0.998	3.0145	0.978
40C0F0	1.4023	0.994	2.7942	0.990
40CF0	1.4578	0.987	2.3390	0.996
40CF25	1.3912	0.985	2.8913	0.979
40CF50	0.9338	0.995	3.1775	0.971
40CF75	0.7477	0.009	3.3714	0.991
40CF100	0.5912	0.999	3.8151	0.994
45C0F0	1.2335	0.995	3.1981	0.994
45CF0	1.4057	0.995	2.9525	0.995
45CF25	0.9786	0.953	3.0733	0.997
45CF50	0.7432	0.995	3.3228	0.989
45CF75	0.6015	0.995	3.4561	0.990
45CF100	0.4579	0.995	3.6177	0.998