Damping Properties and Microstructure Analysis of Microbial Consolidated Rubber Sand

Table 1

Sample parameters.

Sample number	Before consolidation					After consolidation
	Standard sand (g)	Rubber particles (g)	Rubber sand (g)	Dry density of rubber sand (g/cm^3)	Bacterial liquid quality (g)	Rubber sand (g)	Dry density of rubber sand (g/cm^3)
	①	②	③	④	⑤	⑥	⑦
(1)	345	0	345.00	1.60	45	374.20	1.73
(2)	345	3.45	348.45	1.61	45	378.43	1.75
(3)	345	10.35	355.35	1.65	45	384.62	1.76

Note. (1) The data in the table are the average values of the three samples in the same group. The content of rubber particles is 0%, 1%, and 3% of the standard sand. (3) ④ = ③/(π/4 × 52 × 11); ⑦ = ⑥/(π/4 × 52 × 11). (4) The quality of calcium carbonate after consolidation = ⑥−③. (5) The dry density increment of rubber sand after consolidation = ⑦−④.