Microbial-Induced Carbonate Precipitation for Strengthening Soft Clay

Table 6

Detail of CaCO₃ in height of soft clay specimens (curing time 28 d).

Specimen no.	Nutrient concentration (mol/L)	CaCO3 content (g)	Average CaCO3 (g)	Stress (kPa)	Average stress (g)
0.00 a	0.00	—	—	20.29	17.89
0.00 b	0.00	—		15.48
0.50 a	0.50	3.56	2.97	44.94	43.31
0.50 b	0.50	2.39		41.67
0.75 a	0.75	3.73	3.32	30.30	28.89
0.75 b	0.75	2.91		27.47
1.00 a	1.00	4.62	3.52	31.11	30.19
1.00 b	1.00	2.41		29.26