Asbestos-free cement board

1, light, anti-sag, high humidity is not easy to deformation; 2, insulation, wet compartment, 3.effective sound insulation;

Serial number	Examination project	Standard request	Examination result	Single item conclusion
1	Anti-booklet intensity MPa	≥18.0	19.6	Qualified
2	Density,g/cm3	1.2≤D≤1.5	1.33	Qualified
3	Water-absorptivity	≤30	29.2	Qualified
4	Impermeability	Back 24h allows to appear the wet mark,does not allow to appear the waterdrop	It not wet mark,does not have the waterdrop	Qualified
5	Frost resistance	Does not have to appear the fissure,	The lamination does not have the fissure,	Qualified
6	Wet expansion rate,%	≤0.40	0.17	Qualified

Asbestos-free cement board