1、整體外觀

1. Overall appearance

如今市面上比較殘次的透水磚外表都比較粗糙，孔隙十分大。這種透水磚使用壽命比較低，因為大孔隙透水磚的突出“特點”就是容易被塵埃堵死，而一旦被塵埃堵死的透水磚就失去了透水磚的效果與價值了。

Nowadays, the relatively inferior permeable bricks on the market have a rough surface and very large pores. This type of permeable brick has a relatively low service life because the prominent feature of large pore permeable bricks is that they are easily blocked by dust, and once blocked by dust, permeable bricks lose their effectiveness and value.

2、顆粒分布

2. Particle distribution

透水磚的透水原理是通過相互包裹的顆粒縫隙透水，為保證透水磚的透水量及透水時效性，顆粒的粒徑搭配要合理，分布要均勻。劣質透水磚為了降低成本，原材材料中摻入了大量細粉狀的黏土和煤灰，其表面、底部、側面都可以看到顆粒被黏接物粘結，顆粒不明顯。

The permeability principle of permeable bricks is to penetrate through the gaps between particles that wrap around each other. To ensure the permeability and timeliness of permeable bricks, the particle size combination should be reasonable and the distribution should be uniform. In order to reduce costs, low-quality permeable bricks are mixed with a large amount of fine powder clay and coal ash in the raw materials. The particles can be seen to be bonded by the adhesive on the surface, bottom, and sides, and the particles are not obvious.

3、檢驗標準

3. Inspection standards

國家對透水磚的透水時效、透水速率和力學性能上其實都有嚴格的規定和要求。

The country actually has strict regulations and requirements for the permeability time, permeability rate, and mechanical properties of permeable bricks.

我們在選購時，可以讓廠家出示該產品的數據檢驗報告，看透水磚的性能指標是否達到國家標準。請謹記：這3個指標是衡量透水磚質量優劣的“試金石”。

When making a purchase, we can ask the manufacturer to provide a data inspection report of the product to see if the performance indicators of the permeable bricks meet national standards. Please remember that these three indicators are the touchstones for measuring the quality of permeable bricks.

4、批量質量

4. Batch quality

透水磚的質量不能只看單個產品的質量，要看批量產品的質量。劣質透水磚由于廠家工藝管理、原材料控制等把控不嚴的原因，質量波動會比較大，特別是規格、色差、強度、透水性等容易出現大的波動，從而影響產品質量的穩定性。

The quality of permeable bricks should not only depend on the quality of individual products, but also on the quality of batch products. Due to the lack of strict control over the manufacturer's process management and raw material control, low-quality permeable bricks can experience significant quality fluctuations, especially in terms of specifications, color differences, strength, and permeability, which can affect the stability of product quality.