山东GRC构件的主要特点是壁薄体轻、造型随意、质感逼真、减排。其GRC玻璃纤维含量与其力学性能特别是抗弯强度之间的对应关系应通过实验确定。下面从这两个方面来了解下该构件吧。
The main features of Shandong GRC components are thin wall, light body, random shape, realistic texture, energy saving and emission reduction. The corresponding relationship between GRC glass fiber content and its mechanical properties, especially bending strength, shall be determined through experiments. Let's learn about this component from these two aspects.
山东GRC构件的主要特点
Main features of GRC components in Shandong
1、薄体轻。GRC密度在2000/m3左右，比混凝土轻一些，但它可以做成薄壁型构件。一般情况下，GRC构件壁厚在15mm左右，厚的构件壁厚不到30mm,,薄的构件壁厚5mm。
1. Thin and light. GRC density is about 2000/m3, which is lighter than concrete, but it can be made into thin-walled members. Generally, the wall thickness of GRC members is about 15mm, that of thick members is less than 30mm, and that of thin members is 5mm.
2、随意。GRC构件是在模具中制作成型的。由于重量轻，实现造型很方便，GRC可以做成各种复杂的造型。
2. At will. GRC components are made and formed in the mold. Due to its light weight, GRC can be made into various complex shapes.
3、感逼真。GRC表面质感是由模具质感所决定的。由于GRC中没有粗集料，所用细集料的颗粒也比较细。因此，可以细腻、准确地表现不同的质感与纹理。既可以做得光滑如镜也可以做得粗糙似石。复制的各种质感效果非常逼真，是非常理想的仿真材料。
3. Realistic. GRC surface texture is determined by mold texture. Since there is no coarse aggregate in GRC, the fine aggregate used is also fine. Therefore, it can express different textures and textures delicately and accurately. It can be made as smooth as a mirror or as rough as a stone. The various texture effects copied are very realistic and are very ideal simulation materials.
4、减排。山东GRC构件与其他墙体围护结构比较，其制造和安装过程消耗能源要少，有学者曾经做过GRC墙板与钢筋混凝土墙板的碳排放量比较，使用GRC墙板可以降低30%的碳排放量。
4. Emission reduction. Compared with other wall envelope structures, the manufacturing and installation of GRC components in Shandong consumes less energy. Some scholars have compared the carbon emissions of GRC wallboard and reinforced concrete wallboard, and the use of GRC wallboard can reduce the carbon emissions by 30%.
山东GRC构件的玻璃纤维含量与其力学性能特别是抗弯强度之间的对应关系应通过实验确定。
The corresponding relationship between the glass fiber content of GRC components in Shandong and their mechanical properties, especially the bending strength, should be determined through experiments.
玻璃纤维含量范围:
Glass fiber content range:
喷射法：4%~5%
Spray method: 4%~5%
预混法：3%~3.5%
Premixed method: 3%~3.5%
这里的玻璃纤维含量是玻璃纤维与GRC总质量之比，而不是与水泥重量之比。实际生产时也有以水泥重量为基数确定玻璃纤维含量的，这时须进行换算。对于灰砂比1:1，水灰比0.4的GRC，5%玻璃纤维含量换算为水泥为基数的比例，大约是12%.
The glass fiber content here is the ratio of glass fiber to the total mass of GRC, not the ratio of glass fiber to the weight of cement. In actual production, the glass fiber content is also determined based on the cement weight, and conversion is required at this time. For GRC with cement sand ratio of 1:1 and water cement ratio of 0.4, the ratio of 5% glass fiber content to cement is about 12%
使用玻璃纤维网格布或短切丝毡时，玻璃纤维效率会提高，玻璃纤维含量可以进行当量换算。应根据实验确定。
When using glass fiber mesh cloth or chopped strand mat, the glass fiber efficiency will be improved, and the glass fiber content can be equivalent converted. It shall be determined by experiment.
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