Landscaping License Practice Test

Which type of sand is recommended for bedding concrete pavers?

1. Play sand

2. Beach sand

3. Concrete sand

4. Granular sand

The correct answer is: Concrete sand

Concrete sand is recommended for bedding concrete pavers because it is coarser and has angular particles, which provide better interlock and stability for the pavers once they are installed. The structure of concrete sand allows for effective drainage, helping to prevent water from pooling beneath the pavers, which can lead to shifting or settling over time. The angular particles in concrete sand create friction between the pavers, enhancing the overall durability and longevity of the installation. It also allows for proper compaction, resulting in a solid base that supports the weight of the pavers effectively. In contrast, other types of sand, such as play sand or beach sand, tend to be finer and more rounded. These characteristics do not facilitate the same level of interlocking or support that concrete sand provides, which can compromise the integrity and alignment of the pavers. Granular sand, while usable in some applications, may not offer the necessary stability and drainage qualities that concrete sand does when used as a bedding layer for paver installations.