Improvement of Water Stability of Sand Admixed with Water-Soluble Organic Polymer

Table 2

The detailed parameters of the specimens.

Number	Immersion time (h)	Density (g/cm^3)	PU content (%)	Number	Density (g/cm^3)	Immersion time (h)	PU content (%)
S1	24	1.40	0	S11	1.40	24	5
S2	24	1.40	0.1	S12	1.50	24	2
S3	24	1.40	0.2	S13	1.60	24	2
S4	24	1.40	0.3	S14	1.40	0	2
S5	24	1.40	0.4	S15	1.40	1	2
S6	24	1.40	0.5	S16	1.40	3	2
S7	24	1.40	1	S17	1.40	6	2
S8	24	1.40	2	S18	1.40	12	2
S9	24	1.40	3	S19	1.40	48	2
S10	24	1.40	4	S20	1.40	72	2

PU content is the weight ratio of desired PU to dry sand.