Mechanical Properties of Polypropylene-Fiber-Reinforced High-Performance Concrete Based on the Response Surface Method

Table 4

The mixing ratio of the 17 experimental groups.

Mix number	The code value of the variable			The actual value of a variable
Std	A	B	C	A (%)	B (%)	C
1	−1	−1	0	1	45	0.3
2	1	−1	0	2	45	0.3
3	−1	1	0	1	75	0.3
4	1	1	0	2	75	0.3
5	−1	0	−1	1	60	0.27
6	1	0	−1	2	60	0.27
7	−1	0	1	1	60	0.33
8	1	0	1	2	60	0.33
9	0	−1	−1	1.5	45	0.27
10	0	1	−1	1.5	75	0.27
11	0	−1	1	1.5	45	0.33
12	0	1	1	1.5	75	0.33
13	0	0	0	1.5	60	0.3
14	0	0	0	1.5	60	0.3
15	0	0	0	1.5	60	0.3
16	0	0	0	1.5	60	0.3
17	0	0	0	1.5	60	0.3