Estimating the Concrete Compressive Strength Using Hard Clustering and Fuzzy Clustering Based Regression Techniques

Table 8

Equations for different clusters for estimating concrete compressive strength using SLR regression.

Number of clusters	Cluster	Equation
1	1	0.08 C + 13.44
2	1	1.31 S + 32.51
	2	0.09 C + 11.77
3	1	0.07 BFS + 45.52
	2	0.06 C + 14.68
	3	0.1 C + 11.07
4	1	0.07 BFS + 46.95
	2	0.13 C − 11.73
	3	0.14 C + 2.89
	4	0.09 C + 12.45
7	1	−0.05 FA + 101.14
	2	0.12 C − 9.98
	3	0.15 C + 1.02
	4	0.1 C + 15.09
	5	0.08 C + 12.65
	6	−0.29 W + 80.13
	7	−0.41 W + 100.14
10	1	0.07 C + 24.78
	2	0.07 C + 6.25
	3	0.14 C + 3.17
	4	0.11 C + 10.4
	5	0.04 C + 27.15
	6	1.97 S + 17.71
	7	1.09 S + 25.07
	8	0.07 C + 11.93
	9	−0.64 W + 156.24
	10	0.07 C + 17.9