Stationary Mechanical / Soil-Stabilization Plant (Plant-Mix)

A stationary soil-stabilization plant (mechanical plant / plant-mix plant) is a permanently installed, high-tonnage plant that blends aggregate to a defined gradation with water and cement/binder and mechanically stabilizes it for the base and sub-base layers of highways and roads. Critical distinction: this plant does NOT produce ready-mix concrete; it produces stabilized granular road base (plant-mix / cement-bound granular mixture, CBGM). Unlike a concrete batching plant, the output is not discharged into a truck mixer — it is road base that is hauled to site, spread and roller-compacted.

How it works

Material flow is continuous and high-tonnage:

• Cold silo dosing: 3-5 cold aggregate silos dose the different fractions by recipe (aggregate bin 25×4 = 100 m³).
• Belts: collecting and feed belts carry the aggregate to the mixer.
• Mass cement dosing + water: cement/binder is added by mass dosing and water is sprayed in.
• Twin-shaft mixing: the 2×37 kW twin-shaft mixer homogenizes the plant-mix material.
• Truck loading: discharge into the 25 m³ loading bin → hauled to site by truck, spread and compacted.

Built on a permanent foundation, the plant offers higher capacity and continuity than the mobile version.

Technical specifications

Stationary vs mobile

Stationary plant (200-750 tph): higher tonnage, a permanent production base, ideal for large and long projects. Mobile plant (200-600 tph): transportable, follows the advancing road works. For continuous high-tonnage regional infrastructure, the stationary plant is preferred.

Applications

Large highway and road projects, continuous high-tonnage road-base production, regional infrastructure bases and airport runway sub-structure. The product is always road base, never ready-mix concrete.

Single-supplier complete solution

General Makina supplies the crushing-screening line that produces the road aggregate and the stationary plant-mix plant that turns that aggregate into road base from a single supplier. This gives the road contractor one point of contact from quarry to site, with matched equipment and a compatible spare-parts chain.