Response Surface Method for Strength Analysis and Proportion Optimization of New Type Sealing Materials

Table 5

Optimum Scheme and Results.

No.	3 d compressive strength (actual) (MPa)	3 d compressive strength (prediction) (MPa)	Error (%)	7 d compressive strength (actual) (MPa)	7 d compressive strength (prediction) (MPa)	Error (%)
1	32.918	32.099	2.55	33.197	33.378	-0.54
2	33.554	33.031	1.58	36.031	35.463	1.61
3	31.487	31.243	0.78	33.717	33.615	0.30
4	26.601	26.490	0.42	27.449	27.381	0.25
5	28.587	28.032	1.98	30.936	30.398	1.77