Comparison of Strength–Maturity Models Accounting for Hydration Heat in Massive Walls

International Journal of Concrete Structures and Materials

Table 7 Statistical values of ratios between estimated and measured strengths.

Mixtures	Kim et al. (2002a)					Pinto and Schindler (2010)					Yang (2014)
	Age (days)				Total	Age (days)				Total	Age (days)				Total
	3	7	28	91	Total	3	7	28	91	Total	3	7	28	91	Total
S5
γ _m	1.084	0.866	0.757	0.825	0.883	0.942	0.888	0.843	0.890	0.890	1.130	1.101	1.044	1.022	1.074
γ _s	0.312	0.188	0.057	0.060	0.213	0.273	0.144	0.028	0.062	0.150	0.217	0.177	0.066	0.080	0.144
γ _v	0.288	0.218	0.076	0.073	0.241	0.290	0.162	0.033	0.070	0.168	0.192	0.161	0.061	0.078	0.134
G50
γ _m	1.475	1.098	0.992	1.072	1.159	0.980	0.969	0.974	1.040	0.991	1.063	1.021	0.965	0.986	1.009
γ _s	0.103	0.042	0.066	0.043	0.201	0.035	0.030	0.060	0.040	0.049	0.072	0.079	0.037	0.024	0.065
γ _v	0.069	0.038	0.067	0.040	0.173	0.036	0.031	0.062	0.0390	0.049	0.067	0.077	0.039	0.024	0.064
G65S5
γ _m	1.393	1.151	1.147	1.170	1.215	0.855	1.010	1.110	1.141	1.029	1.215	1.086	1.053	1.076	1.107
γ _s	0.122	0.062	0.037	0.040	0.125	0.080	0.046	0.034	0.039	0.124	0.109	0.046	0.029	0.040	0.087
γ _v	0.087	0.054	0.032	0.034	0.103	0.094	0.045	0.030	0.034	0.120	0.090	0.042	0.028	0.037	0.079

γ _m, γ _s, and γ _v indicate the mean, standard deviation, and coefficient of variation of the ratios (\( \gamma = S_{estimation} /S_{test} \)) between the estimates and measured strengths.