Characterization of Short-Term Strength Properties of Fiber/Cement-Modified Slurry

Table 2

Calculated results of parameters in BP neural network.

Cement (c) and fiber (f) contents	a1	a2	a3	a4	a5	a6	a7	Average error (kPa)
5%c	27.3	−1.28	9.72	−2228896	−0.94	−10.98	12.38	0.16
10%c	173	−1.05	3.07	2516991	1.11	9.6	−2516987	1.37
15%c	−135.6	2.12	−6.68	−332.9	−3.53	0.32	194.6	0.61
20%c	−188.8	0.77	−2.19	421	2.38	−0.45	−138.9	2.71
25%c	366.7	−1.58	7.55	−14359490	−1.11	−10.32	95.3	0.32
30%c	344.4	−1.17	5.9	578	2	−1.61	−443.6	0.19
20%c + 0.25%f	258.3	−1.09	5	−5265	−0.79	−2.77	38.87	0.17
20%c + 0.5%f	269.4	−1.18	4.66	727.6	1.53	0.11	−659	0.37
20%c + 0.75%f	195.4	−1.08	5.66	581.3	1.26	0.035	−511	2.04
20%c + 1%f	7227669	1.55	9.85	310	−1.17	3.36	−7227592	0.64