Description
WHAT IS CEMENT-TREATED BASE ?
Cement-treated base is a non-structural composite material mainly used in civil and infrastructure engineering works. It is obtained through the controlled mixing of granular aggregates (natural quarry aggregates or recycled aggregates from construction and demolition activities), a low percentage of cement, and water.
The function of cement-treated base is load-bearing, as it is used as a foundation layer or subbase for the construction of road pavements, airport runways, industrial yards, logistics areas, trafficable surfaces, and civil works subjected to repeated loads.
PRODUCTION OF CEMENTITIOUS MIXTURES (150 m³/h CONTINUOUS)
he MULTIMIX continuous mixing plant is designed for the continuous production of cement-treated mix and non-structural cementitious conglomerates, obtained by mixing granular materials (natural aggregates from quarry or recycled aggregates from construction and demolition waste) with a low percentage of cement and water. The final product is used as a foundation layer or structural support for road pavements, airport runways, driveable areas, and filling operations such as sub-bases, underlays, and lean concrete layers. The plant consists of two or more aggregate storage hoppers, a cement dosing unit equipped with an electronic gravimetric weighing system with load cells, a twin-shaft horizontal continuous mixer with a production capacity of 150 m³/h, and an elevating conveyor belt for loading the mixed material onto trucks or truck mixers. The MULTIMIX plant is completely independent, flexible, and versatile, suitable both for road transport on standard trailers and for maritime transport in 40-foot containers, ensuring mobility, fast installation, and easy logistics management.
INERT AGGREGATES FROM QUARRY, CRUSHED AND RECLAIMED MATERIALS
The aggregate storage hoppers are designed to allow the use of both natural materials from quarries and recycled aggregates derived from construction and demolition waste processing, such as rubble, tiles, bricks, or ceramic materials. These materials, often difficult to handle due to their irregular shape or impurities, are discharged uniformly by independent volumetric extractor belts, which allow precise calibration of flow rates and accurate proportioning of aggregates. Upon request, the belts can be equipped with dynamic electronic weighing systems, converting volumetric dosing into weighed dosing, enabling the MULTIMIX system to produce large hourly quantities of cementitious conglomerates and non-structural concrete with high precision.
CEMENT, LIME AND COLD BITUMEN EMULSIONS
The storage of one or more types of binders (cement, fly ash) can take place using horizontal EUROSILO silos (mobile silos) or vertical monolithic, telescopic and modular panel silos (fixed/stationary silos) for powdered materials. The addition of specific accessories for the dosing and spraying of bituminous emulsions makes the plant suitable for the production of cold bituminous mixes or recycled asphalt materials (milled or cold-recycled asphalt), eliminating the heating phase of aggregates and bitumen and enabling the production of mixes with up to 100% recycled materials, compared to about 30% in traditional hot-recycling processes. In addition to the use of recovered materials and the production of hydraulic or bituminous binder mixtures, the MULTIMIX plant also allows the production of lime-stabilized and unbound mixtures, ensuring maximum production flexibility for different site applications. The dosage of all the components (aggregates, cement, water, additives, emulsions), as well as any detection of the moisture retained by the aggregates and the consequent modification of the quantities of water introduced into the mix, is automatic thanks to a user-friendly touchscreen management system on board the machine or via a PC station located inside the control cabin.
