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一、首先，我们分析一下为什么要分透水砖的面层和底料层。透水砖主要的用途是市外道路上的铺装，在透水砖产品没有铺装完成前，我们能看到产品的整个构成，我们知道产品的完整构成，但是铺装完成后，我们走在透水砖产品上时，我们只会看到透水砖产品的最上面的面料层，所以，底层构成了透水砖产品的结构，而面层老师产品的真正的外观。所以在制作产品时，底料产品在选材时只要满足产品的基本物理性能，如强度、透水性、抗冻融性能即可；但是面层在满足底料的所有功能外，还需要满足产品的耐磨性能、美观性能，所以在面层的选料时要远比底料严格，造成的成本也要远大于底料成本。

1、 Firstly, let's analyze why we need to divide the surface layer and bottom layer of permeable bricks. The main use of permeable bricks is for paving on roads outside the city. Before the permeable brick product is paved, we can see the entire composition of the product. We know the complete composition of the product, but after the paving is completed, when we walk on the permeable brick product, we only see the topmost fabric layer. Therefore, the bottom layer forms the structure of the permeable brick product, while the surface layer is the true appearance of the product. So when making products, the selection of base materials only needs to meet the basic physical properties of the product, such as strength, permeability, and freeze-thaw resistance; However, in addition to meeting all the functions of the substrate, the surface layer also needs to meet the wear resistance and aesthetic performance of the product. Therefore, when selecting materials for the surface layer, it is much stricter than that of the substrate, and the resulting cost is also much greater than that of the substrate.

二、面层的构成：透水砖产品不管是混凝土透水砖、PC仿石透水砖、还是陶瓷陶瓷透水砖，面层的构成都分骨料、粘结剂、颜料三部分。骨料是决定面层外观的的基础。我们在选择透水砖产品时，首先会考虑精细面、透水彺能、耐磨性能，这此都是由骨料的构成有关。

2、 The composition of the surface layer: Whether it is concrete permeable bricks, PC imitation stone permeable bricks, or ceramic permeable bricks, the composition of the surface layer is divided into three parts: aggregates, binders, and pigments. Aggregates are the basis for determining the appearance of the surface layer. When choosing permeable brick products, we first consider the fine surface, permeability, and wear resistance, all of which are related to the composition of aggregates.

1、在选择面层骨料时，我们首先要保证骨料的颗粒的均匀性、级配要求、抗压强度等，这三个指标是所用透水砖产品面层选择的基础，要做出好的产品，必须结上透水砖面层的这三个指标进行严格的要求。

1. When selecting surface layer aggregates, we first need to ensure the uniformity of particle size, grading requirements, compressive strength, etc. These three indicators are the basis for selecting the surface layer of permeable brick products. To make a good product, strict requirements must be imposed on these three indicators of permeable brick surface layer.

2、透水砖产品面层的粘结剂，陶瓷透水砖产品有专用的陶瓷料产品的粘结剂。混凝土透水砖、PC仿石透水砖产品的面层粘结剂一般有42.5#灰水泥或白水泥，在大部分地区，白水泥的采购价格是灰水泥的一倍左右。可以根据不同颜色的需求进行选择。

2. The adhesive for the surface layer of permeable brick products, and ceramic permeable brick products have a dedicated adhesive for ceramic materials. The surface layer binder for concrete permeable bricks and PC imitation stone permeable brick products generally includes 42.5 # gray cement or white cement. In most regions, the purchase price of white cement is about twice that of gray cement. You can choose according to the needs of different colors.

3、颜料选择，透水砖产品的面层颜色时，在产品搅拌时加入的颜料决定的，所选的颜料不同、掺加的数量不同、原材料在搅拌系统中搅拌时的水份大小、在砌块成型机成型时布料工艺不同，都会生产出不同的效果。

3. The color of the surface layer of permeable brick products is determined by the pigments added during product mixing. Different pigments are selected, the amount added, the water content of raw materials during mixing in the mixing system, and the fabric technology during block forming machine can all produce different effects.

三、面层的成本：

3、 Cost of surface layer:

从上述的分析我们可以看到，选择面层产品时，对骨料的粒径、强度、级配要严格要求，面层为保障耐磨系数，粘结剂的掺加量要远大于底料，同时还要掺加一定数量的颜料，颜料的采购成本一般在6000~12000元/吨。所以面层的单位成本要远大于底料，单位面积上，面料的成本约占整个透水砖产品成本的40%。

From the above analysis, we can see that when selecting surface layer products, strict requirements are placed on the particle size, strength, and gradation of the aggregates. In order to ensure the wear resistance coefficient of the surface layer, the amount of binder added should be much greater than that of the base material, and a certain amount of pigment should also be added. The procurement cost of pigments is generally between 6000 to 12000 yuan/ton. So the unit cost of the surface layer is much higher than that of the base material, and the cost of the fabric per unit area accounts for about 40% of the total cost of permeable brick products.

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This article is provided by Shandong permeable bricks for assistance. For more related content, please click: http://www.longyuejiancai.com I hope this article can be helpful to you. Thank you for reading!