Research on the Ecological Protection of Coal Gangue Slope Based on a Polymer Curing Agent

Table 2

Performance indices of P.O42.5 cement.

Order number	Technical indicators	Test conditions	Test results
1	Fineness	—	14.0%
2	Standard consistency	—	25.2%
3	Curing time	Initial curing	105 min
		Final curing	229 min
4	Rupture strength (MPa)	3d	6.2 MPa
		28d	8.3 MPa
5	Compressive strength (MPa)	3d	26.8 MPa
		28d	59.1 MPa