The Crushing and Sand-Making Industry in Tunisia: A Comprehensive Overview
Tunisia’s construction sector is experiencing steady growth, driven by infrastructure projects, residential developments, and commercial expansions. As a result, the demand for high-quality aggregates—such as crushed stone, sand, and gravel—has surged. These materials are essential for concrete production, road construction, and tile manufacturing (e.g., ceramic and porcelain tiles).
The crushing and sand-making industry plays a pivotal role in supplying these aggregates. With Tunisia’s limited natural sand resources due to environmental regulations, manufactured sand (M-Sand) produced through crushing and screening processes has become a sustainable alternative.
—
1. Primary Crushing Equipment
– Jaw crushers: Ideal for hard rock (e.g., limestone, basalt) with high compressive strength.
– Gyratory crushers: Suited for large-scale mining operations requiring high throughput.
2. Secondary & Tertiary Crushing
– Cone crushers: Produce finely crushed aggregates for concrete and asphalt.
– Impact crushers: Used for softer materials (e.g., dolomite) to create cubical-shaped particles ideal for tile adhesives and mortars.
3. Sand-Making Systems
– Vertical shaft impact (VSI) crushers: Key equipment for producing M-Sand with optimal gradation (0–5mm), critical for tile bedding layers.
– Sand washers: Remove impurities like clay and silt to meet construction standards (e.g., EN 12620).
4. Screening & Grading
– Vibrating screens: Separate aggregates into precise fractions (e.g., 0–3mm for tile adhesives, 3–8mm for sub-base layers).
—
1. Tile Manufacturing
– Fine aggregates (0–2mm) are used in ceramic tile production for their uniform particle size and low impurity content.
– Coarser fractions (2–5mm) serve as drainage layers beneath flooring installations.
2. Concrete & Mortar Production
– Well-graded M-Sand improves workability and reduces cement consumption compared to river sand.
3. Infrastructure Projects
– Road base layers rely on 20–40mm crushed stone, while railway ballast requires durable granite or basalt aggregates.
—
—
1. What is the best crusher for producing aggregates for tiles?
A VSI crusher is preferred for its ability to shape particles and control fines content, crucial for tile adhesives.
2. How does M-Sand compare to natural sand?M-Sand offers superior gradation control, zero organic impurities, and higher compressive strength in mortars.
3.What are the key standards for aggregates in Tunisia?EN 12620 (construction aggregates) and NF P18-545 (concrete sands) are widely adopted.
—
A leading tile manufacturer in Sfax replaced natural sand with M-Sand from a local crushing plant equipped with a VSI crusher and air classifier. Results included:
—
Chat Online