Table 2.

Table of variable parameters for microbial cement grouting anchorage reinforcement test.

group	Variable parameters	parameter value	Invariant parameters
1	Calcium source concentration	2.0 mol/L	Medialess, ribbed steel bar
		1.0 mol/L
		0.5 mol/L
2	Medium particle size	< 0.5 mm	The calcium source concentration is 1.0 mol/L, ribbed steel bar
		0.5 ~ 1 mm
		1 ~ 2 mm
3	Rebar shape	Plain round steel bar ribbed steel bar	The calcium source concentration is 1.0 mol/L, Medialess