方料型人造洞石的尺寸是规整统一的，根据模具的大小可以定制。大板尺寸2450*1250mm。统一的尺寸只需简单排版，稍加以控制可达到非常理想的出材率，在项目初期让出材率可视化，即省时间又能降低项目成本。

抗弯试验表明：厚度大的面板石材，其抗弯强度低于厚度小的石材。但是由于板材的承载能力和厚度的平方成正比，厚的石材承载能力还是比薄的石材要大一些。

天然洞石板材的最小厚度可由抗弯强度标准值fk来决定：

fk≥8.0MPa时，最小厚度35mm。

4.0≤fk＜8.0MPa时，最小厚度40mm。

Gray terrazzo is a classic terrazzo - the background color is gray, with black, white and various gray gravel textures on it

Shop prefabricated inorganic terrazzo to brighten your eyes when you enter the door; Cleanliness is the first impression, and comfort is a long-term experience; Do not publicize, do not dominate, quietly create a sense of comfort, there is no sense of existence, but there is an indelible concrete existence.

The surface hardness reaches grade 5-7, which is close to the surface of high hardness granite and has better wear resistance. Anti slip and wear-resistant. Because it is ground with crushed stone cement, it has good anti-skid, wear resistance and bearing capacity.

Linear thermal expansion coefficient: 0.5 × 10-1℃C-1
La < 0.1i < 0.1 classification: class a radioactivity
Bulk density: 2.52g/cm2
Mohs hardness: 4.5
Water absorption: 0.22%
Gloss: 50-100
Bending strength: 8.4mpa
Compressive strength: 80MPa
Bending strength: 12.4MPa