The compressive strength of diatomite insulating brick varies with the specific model and production process. The following are the compressive strength data from different sources:

I. Compressive strength of different density models:

The compressive strength of diatomite insulating brick with a bulk density of 0.5 g/cm³ is generally 0.8 MPa.

The compressive strength of diatomite insulating brick with a bulk density of 0.6 g/cm³ is usually 1.2 MPa.

Diatomite insulating brick with a bulk density of 0.7 g/cm³ has a compressive strength of 2.0 MPa.

Diatomite insulating brick with a bulk density of 0.8 g/cm³ has a compressive strength of 3.5 MPa.

Diatomite insulating brick with a bulk density of 1.0 g/cm³ has a compressive strength of 5.0 MPa.

II. Compressive strength data from other sources:

The compressive strength of some diatomite insulating brick at room temperature ranges from 1.0 MPa to 2.5 MPa.

When the density of diatomite insulating brick with new material formula is 0.6 g/cm³, the compressive strength is ≥ 1.5 MPa; When the density is 0.7 g/cm³, the compressive strength is ≥ 2.5 MPa; When the density is 0.8 g/cm³, the compressive strength is ≥2.8 MPa.

Generally speaking, the compressive strength of diatomite insulating brick increases with the increase of bulk density, which is suitable for different heat insulation and load-bearing requirements.