Application and Microstructure Properties of Nanomaterials in New Concrete Materials

Table 2

Properties of cement.

Setting time		Stability	Compressive strength (MPa)		Flexural strength (MPa)
Initial setting	Final setting	Qualified	4D	27D	4D	27D
2.5 h	3.5 h		25.7	50.0	5.5	8.7