what is Marl, why we Screen this materials and what are usages. скачать в хорошем качестве

what is Marl, why we Screen this materials and what are usages.

Reasons for Using Screen Material 1. *Drainage*: Screen material allows for good drainage, which helps to prevent water accumulation and reduce the risk of pavement damage. 2. *Stability*: The angular particles in screen material help to provide stability and resistance to deformation under traffic loads. 3. *Load Distribution*: Screen material helps to distribute loads evenly, reducing the stress on the underlying soil and preventing settlement. 4. *Prevents Settlement*: The screen material's high friction angle and stiffness help to prevent settlement and deformation of the pavement. 5. *Improves Ride Quality*: A stable and even base course helps to improve the ride quality of the road. 6. *Reduces Maintenance*: Using screen material as a base course can reduce maintenance needs, as it helps to prevent pavement damage and extends the lifespan of the road. Characteristics of Screen Material 1. *Gradation*: Screen material typically has a well-graded particle size distribution, which helps to provide stability and drainage. 2. *Angular Particles*: The angular particles in screen material help to provide interlock and stability. 3. High Friction Angle. Screen material typically has a high friction angle, which helps to provide stability and resistance to deformation.