人造无机洞石在设计和应用中有不同的要求和标准。人造无机洞石在质地特性、吸水率、冻融系数、孔洞、弯曲度、纹理设计和颜色等方面远高于天然洞石。因此,人造洞石几乎只需要达到天然洞石要求系数的一半就可以完全施工。通过人工特殊处理,人造洞石完全可以满足这一要求。
人造洞石幕墙外挂参数要求如下
1.每批幕墙石板应进行抗弯强度试验,试验值应满足以下要求:
幕墙高度不超过80m当试验平均值不低于5时N/㎜,最小试验值不小于4N/㎜;
80多个幕墙高度m当试验平均值不低于6时N/㎜,不低于4的试验最小值.5N/㎜;
主力方向应符合上述要求;
双向个受力方向上,双向受力石板应满足上述要求。
2.石板不应与弱条纹和弱矿脉混合。天然洞石孔不宜过密,直径不宜大于3mm,不要有透明的孔。
3.人造洞石吸水率不低于1%。
4、冻融系数大于1.5。
1、抗弯试验
干燥抗弯试验和饱和抗弯试验是材料性质的基本指标。石材对水的敏感性有利于饱和抗弯强度。净石试件在试验过程中不宜附加增强层和复合层。人造洞石抗弯试验合格。
3、冻融系数
冻融系数是指冻融循环后的抗弯强度与未冻融循环的抗弯强度之比。它决定了寒冷地区是否可以使用这种石材。本试验应在可能出现负温的地区进行。
人造洞石完全符合各种不同环境下使用的幕墙工程,只有通过基本材料性试验,确认符合这些基本条件。
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