Experimental Study on Unconfined Compressive Strength of Organic Polymer Reinforced Sand

Table 3

Results of density 1.4 g/cm³ samples with different PSS concentration and curing time.

Serial number	PSS concentration (%)	Dry density (g/cm^3)	Relative density (%)	Curing time (hour)	Peak strength (KPa)	Residual strength (KPa)	Strength of axial strain 15%   (KPa)	Axial strain of failure (%)	Elasticity modulus (MPa)	Failure modulus (MPa)
S1	water	1.4	21.05	/	/	/	/	/	/	/
S4	10	1.4	21.05	6	17.79	9.61	15.38	7.92	0.479	0.225
S5	20	1.4	21.05	6	31.16	14.11	19.96	7.86	1.121	0.396
S6	30	1.4	21.05	6	42.52	16.45	20.79	4.80	1.264	0.885
S7	40	1.4	21.05	6	61.55	20.62	21.65	4.26	1.853	1.444
S8	50	1.4	21.05	6	88.89	21.98	27.74	4.18	2.326	2.125
S9	10	1.4	21.05	12	29.89	12.25	19.70	8.76	0.483	0.341
S10	20	1.4	21.05	12	36.81	17.48	28.00	7.91	1.256	0.465
S11	30	1.4	21.05	12	65.86	22.17	46.90	7.33	2.012	0.899
S12	40	1.4	21.05	12	104.70	32.25	64.95	6.73	2.917	1.555
S13	50	1.4	21.05	12	127.08	33.93	80.60	5.84	3.756	2.176
S14	10	1.4	21.05	24	36.22	18.76	23.19	10.27	0.722	0.353
S15	20	1.4	21.05	24	57.08	21.89	47.71	10.18	1.310	0.561
S16	30	1.4	21.05	24	87.24	35.89	70.61	7.65	2.144	1.140
S17	40	1.4	21.05	24	129.03	56.77	87.96	6.85	2.943	1.884
S18	50	1.4	21.05	24	196.62	86.11	130.47	5.89	3.757	3.340
S19	10	1.4	21.05	48	62.34	19.46	56.75	10.88	1.244	0.573
S20	20	1.4	21.05	48	120.83	22.52	107.44	10.75	2.594	1.124
S21	30	1.4	21.05	48	169.22	56.95	152.29	10.11	5.629	1.674
S22	40	1.4	21.05	48	201.94	75.29	168.24	8.87	8.526	2.277
S23	50	1.4	21.05	48	245.28	97.73	187.46	7.08	11.494	3.464
S24	10	1.4	21.05	72	67.85	20.39	60.23	10.92	1.251	0.621
S25	20	1.4	21.05	72	121.67	22.57	113.43	10.76	2.605	1.131
S26	30	1.4	21.05	72	172.93	57.94	153.02	10.14	5.707	1.706
S27	40	1.4	21.05	72	207.55	75.01	168.49	9.02	8.969	2.297
S28	50	1.4	21.05	72	249.18	100.85	193.31	7.31	11.352	3.391