CEMENT BATCH PLANT
AP TECHNIC cement batching plants have a continuous throughput ranging from 100 to 600 t/h. The cement batching unit is available in two versions: fixed or mobile. Advantage The advantage of a mob ...
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What is cement-based aggregate?
Cement-based aggregate is a mixture of aggregates (sand, gravel, fines) and a hydraulic binder (usually cement), to which a small amount of water is added. Once compacted and hardened, it forms a rigid subbase for roadways.
It is a material treated with hydraulic binders (HLB), used to:
- reinforce pavement base layers,
- improve soil bearing capacity,
- and ensure good structural durability.
What thickness should the cement-based gravel be?
The thickness of a cement-based gravel layer depends on the structure of the roadway and its intended use (light road, national road, motorway, industrial zone, etc.). Generally, the following thicknesses are used:
- 15 to 20 cm for light roads or secondary roads,
- 25 to 40 cm for more heavily used roadways (main roads, industrial platforms).
The precise dimensions are defined by geotechnical studies and current standards (such as the SETRA guide in France).
Why use cement-based gravel?
Cement-based gravel offers several major advantages:
- High mechanical strength: once cured, it withstands heavy loads very well.
- Stability over time: it resists deformation, freezing/thawing, and fatigue.
- Economical solution: fewer high-quality materials are required for the upper layers.
- Quick to install: it can be produced in a batch plant and quickly installed on site.
It is therefore often used as a base layer before the installation of asphalt or surface concrete.