0x4 stone (or crushed stone): is a type of construction stone produced from natural stone. This type of stone is a mixture of many types of stone, from small crushed stone to stones with the largest size of 40mm. With the characteristic of high surface roughness, 0x4 stone will adhere to cement mortar better than gravel when it meets water.
0x4 stone is currently the most commonly used among construction stones and is also the most popular in construction projects. It can be used as aggregate stone for roadbeds or to renew road surfaces.