The selection of stones for exterior areas has strict requirements. It is necessary to comprehensively consider various factors such as durability, aesthetics, anti - slip properties, and adaptability to different climatic conditions. Based on the previous discussion of paving stones for parks, the following types of stones stand out in exterior scenarios.

Natural Stones

1.Granite: Granite is a popular choice for exterior paving. It has a dense structure and high hardness, with excellent wear resistance. Whether it is dealing with frequent pedestrian trampling or occasional vehicle rolling, it can maintain a good condition. In terms of weathering and corrosion resistance, granite also performs outstandingly and can be used for a long time under various harsh climatic conditions, such as high - temperature exposure, rainwater scouring, and cold winters. In terms of appearance, granite comes in a rich variety of colors, from classic gray and white to deep black, etc., which can meet the needs of different design styles. It is widely used in large commercial plazas, municipal roads, and other outdoor spaces.

2.Marble: As mentioned before, marble is known for its unique texture and elegant appearance. Although it is relatively soft, in some exterior areas with low pedestrian flow and extremely high aesthetic requirements, such as the courtyards of high - end villas and the landscape walkways of hotels, marble is still the ideal choice. Its aesthetics can add a noble temperament to these places. However, when using it, it is necessary to avoid scratches from heavy objects and perform regular maintenance to ensure its appearance and performance.

Artificial Stones

1.Concrete Bricks: Concrete bricks are an economical and practical exterior paving material. They are made by mixing cement, aggregates, etc. in a certain proportion and have high strength and stability. Concrete bricks can be made into different shapes, colors, and textures according to requirements, imitating the appearance of natural stones while being more affordable. They are widely used in areas such as the sidewalks and parking lots of residential communities. Their good anti - slip performance can ensure the safety of residents during walking and vehicle driving.

2.Permeable Bricks: Permeable bricks are also being increasingly widely used outdoors, especially in today's era of emphasizing ecological and environmental protection. They have good water - permeable properties, allowing rainwater to quickly penetrate into the ground and reducing surface water accumulation. This characteristic is particularly important in rainy areas, effectively preventing slipping accidents caused by water accumulation on the road surface. At the same time, it helps to replenish groundwater and promote ecological balance. Permeable bricks are commonly used in outdoor areas with high drainage requirements, such as parks, squares, and sidewalks.

Ceramic Tiles

Ceramic tiles are brightly colored and have a smooth surface, with good anti - slip and wear - resistance properties. In outdoor landscape areas, such as garden paths and around swimming pools, ceramic tiles can create a unique atmosphere. Their rich color choices can be matched with surrounding plants and landscape elements to create a beautiful and practical outdoor space. In addition, ceramic tiles also have good stain - resistance, are easy to clean and maintain, and can maintain long - term beauty.

When choosing exterior paving stones, it is necessary to comprehensively consider the specific use scenarios, budget, and expected effects. Different stones have their own advantages and disadvantages in terms of performance and appearance. A reasonable choice can make the outdoor space both beautiful and durable, meeting various needs of people for the outdoor environment.