. 2021 Jul 5;14(13):3765. doi: 10.3390/ma14133765

Table 6.

ANOVA for the developed response models.

Response	Factors	Squares Sum	D.F.	Mean Square	F-Value	p-Value
Compressive strength	Model	5108.15	14	364.87	16.36	<0.0001
	A	4169.69	1	4169.69	186.94	<0.0001
	B	187.27	1	187.27	8.40	0.0110
	C	131.61	1	131.61	5.90	0.0282
	D	6.04	1	6.04	0.27	0.6105
	AB	230.35	1	230.35	10.33	0.0058
	AC	8.81	1	8.81	0.40	0.5391
	AD	9.81	1	9.81	0.44	0.5173
	BC	59.18	1	59.18	2.65	0.1241
	BD	294.85	1	294.85	13.22	0.0024
	CD	5.48	1	5.48	0.25	0.6274
	A ²	0.0055	1	0.0055	0.00025	0.9877
	B ²	156.03	1	156.03	7.00	0.0184
	C ²	59.79	1	59.79	2.68	0.1224
	D ²	655.05	1	655.05	29.37	<0.0001
	Lack of Fit	277.67	10	27.77	2.44	0.0984
Elastic modulus	Model	272.60	14	19.47	3.15	<0.0001
	A	78.20	1	78.20	12.65	0.0029
	B	6.47	1	6.47	1.05	0.3224
	C	3.43	1	3.43	0.56	0.4676
	D	0.18	1	0.18	0.028	0.8686
	AB	5.24	1	5.24	0.85	0.3718
	AC	0.017	1	0.017	0.0027	0.9592
	AD	3.65	1	3.65	0.59	0.4544
	BC	1.54	1	1.54	0.25	0.6250
	BD	2.94	1	2.94	0.47	0.5013
	CD	2.64	1	2.64	0.43	0.5234
	A ²	0.00096	1	0.00096	0.00016	0.9902
	B ²	57.78	1	57.78	9.35	0.0080
	C ²	49.70	1	49.70	8.04	0.0125
	D ²	30.42	1	30.42	4.92	0.0424
	Lack of Fit	72.46	10	7.25	1.79	0.2707
Poisson’s ratio	Model	0.037	14	0.002659	16.31	<0.0001
	A	0.015	1	0.015000	91.89	<0.0001
	B	0.000043	1	0.000043	0.26	0.6155
	C	0.002041	1	0.002041	12.52	0.0030
	D	0.002748	1	0.002748	16.86	0.0009
	AB	0.000039	1	0.000039	0.24	0.6332
	AC	0.000294	1	0.000294	1.80	0.1995
	AD	0.010	1	0.010000	63.48	<0.0001
	BC	0.000311	1	0.000311	1.91	0.1876
	BD	0.000867	1	0.000867	5.32	0.0358
	CD	0.001820	1	0.001820	11.17	0.0045
	A ²	0.000248	1	0.000248	1.52	0.2360
	B ²	0.000294	1	0.000294	1.81	0.1989
	C ²	0.001141	1	0.001141	7.00	0.0183
	D ²	0.000117	1	0.000117	0.72	0.4104
	Lack of Fit	0.002191	10	0.000219	4.31	0.1603
Direct tensile strength	Model	3.53	14	0.25	5.28	<0.0001
	A	0.0068	1	0.0068	0.14	0.7116
	B	0.0081	1	0.0081	0.17	0.6857
	C	0.3	1	0.3	6.32	0.0238
	D	0.36	1	0.36	7.44	0.0156
	AB	0.089	1	0.089	1.88	0.1910
	AC	0.0033	1	0.0033	0.070	0.7949
	AD	0.99	1	0.99	20.86	0.0004
	BC	0.0015	1	0.0015	0.031	0.8615
	BD	0.31	1	0.31	6.60	0.0214
	CD	0.0016	1	0.0016	0.034	0.8556
	A ²	0.011	1	0.011	0.23	0.6399
	B ²	0.015	1	0.015	0.32	0.5790
	C ²	0.013	1	0.013	0.28	0.6039
	D ²	0.34	1	0.34	7.18	0.0171
	Lack of Fit	0.60	10	0.060	2.56	0.1551
Drying shrinkage	Model	279.40	14	19,957.70	61.52	<0.0001
	A	208.50	1	208.50	642.82	<0.0001
	B	768.45	1	768.45	2.37	0.1446
	C	1195.33	1	1195.33	3.68	0.0741
	D	1271.57	1	1271.57	3.92	0.0664
	AB	107.75	1	107.75	0.33	0.5730
	AC	2626.96	1	2626.96	8.1	0.0123
	AD	0.15	1	0.15	0.000454	0.9833
	BC	138.08	1	138.08	0.43	0.5240
	BD	56.32	1	56.32	0.17	0.6828
	CD	2513.31	1	2513.31	7.75	0.0139
	A ²	11,086.53	1	11,086.53	34.17	<0.0001
	B ²	50.78	1	50.78	0.16	0.6979
	C ²	3.23	1	3.23	0.009950	0.9219
	D ²	24,209.25	1	24,209.25	74.62	<0.0001
	Lack of Fit	4084.39	10	408.44	2.61	0.1505
Flexural strength	Model	272.60	14	19.47	3.15	<0.0001
	A	78.20	1	78.20	12.65	0.0029
	B	6.47	1	6.47	1.05	0.3224
	C	3.43	1	3.43	0.56	0.4676
	D	0.18	1	0.18	0.028	0.8686
	AB	5.24	1	5.24	0.85	0.3718
	AC	0.017	1	0.017	0.002700	0.9592
	AD	3.65	1	3.65	0.59	0.4544
	BC	1.54	1	1.54	0.25	0.6250
	BD	2.94	1	2.94	0.47	0.5013
	CD	2.64	1	2.64	0.43	0.5234
	A ²	0.000964	1	0.000964	0.000156	0.9902
	B ²	57.78	1	57.78	9.35	0.0080
	C ²	49.70	1	49.70	8.04	0.0125
	D ²	30.42	1	30.42	4.92	0.0424
	Lack of Fit	72.46	10	7.25	1.79	0.2707

A: crumb rubber, B: nano-silica, C: fly ash, D: PVA fiber, A², B², C², and D²: second order effect, AB, AC, AD, BC, BD, and CD: interaction effects, D.F: degree of freedom, F-value: Fisher-statistical test values, p-value: probability values.