Chargement…
Chargement…
Refractory cement (aluminous cement, fused cement) withstands temperatures up to 1,500 °C and above. Essential for industrial furnaces, boiler chimneys, fireplace hearths and incinerators. Please note: Dakhla Aménagement does not produce refractory cement — our Lassargua plant (Dakhla) produces grey CPJ 45 and CPJ 55, delivered within Dakhla, delivery included.
Refractory cement partners in Europe and Turkey
Aluminous composition tested in laboratory before delivery
25kg bags, 1T big bag — delivery included in Dakhla City only
Grade choice, dosage, firing plan: project support
Refractory cement — also called aluminous cement or fused cement (CAC, Calcium Aluminate Cement) — is a special hydraulic binder formulated from calcium aluminates (CA, CA₂, C₁₂A₇) obtained by melting or firing at very high temperature (1,500-1,600 °C) a mixture of bauxite and limestone. Unlike standard Portland cement (based on calcium silicates), refractory cement retains its mechanical strength at temperatures where Portland decomposes: up to 1,500 °C for common grades, 1,800 °C for high-alumina grades, even 2,000 °C for special refractory concretes.
Refractory cement has several technical characteristics that make it essential for high-temperature applications: (1) mechanical strength retained at high temperature, (2) thermal shock resistance (heating/cooling cycles without cracking), (3) rapid setting (2-6h at 20 °C, faster than Portland), (4) chemical resistance to slags, ashes and acid gases. It is used alone as refractory mortar (brick sealing) or as refractory concrete (mixed with chamotte, bauxite, corundum aggregates).
The choice of grade depends on the service temperature, the type of aggression (chemical, thermal, mechanical) and the structure. Dakhla Aménagement supplies three main families of refractory cements in Morocco .
| Grade | Max temp | Al₂O₃ | Use |
|---|---|---|---|
| Standard grade | 1,200 °C | 40-50% Al₂O₃ | Fireplace hearths, bread ovens, wood stoves, residential flue pipes. |
| Intermediate grade | 1,500 °C | 50-70% Al₂O₃ | Industrial boilers, bakery/pizzeria ovens, incinerators, industrial chimneys. |
| High-alumina grade | 1,800 °C | > 70% Al₂O₃ | Steel industry, foundry, ceramic kilns, cement plants, petrochemical installations. |
From fireplace hearth to industrial furnace: wherever the temperature exceeds 500 °C, refractory cement is essential.
Domestic fireplace hearths, inserts, wood stoves, bread and pizza ovens.
Cement plant kilns, steel industry, ceramics, glass, incinerators.
Boiler chimney lining, high-temperature flue pipes.
Furnace repair, refractory brick sealing, high-temperature joints.
Refractory cement is a technical product whose price varies greatly depending on the grade (alumina content), origin (Europe, Turkey, China) and packaging. For a standard grade (40-50% Al₂O₃), expect about 8-10 DH/kg in 25 kg bags. For an intermediate grade (50-70% Al₂O₃), 10-13 DH/kg. For a high-alumina grade (> 70% Al₂O₃), 13-15 DH/kg. In 1T big bag, the price drops to 6,500-12,000 DH/T depending on quality. Ready-to-mix refractory mortars (cement + aggregates) are sold at 12-20 DH/kg. These prices are market indications — Dakhla Aménagement does not sell refractory cement.
To be clear: Dakhla Aménagement does not sell this product and does not import any. Our Lassargua plant (Dakhla) produces only composite grey Portland cement — CPJ 45 and CPJ 55 (CPJ 35 on request) — delivered within Dakhla, delivery included (48h standard, 24h urgent). If your structure requires refractory cement (furnace, hearth, industrial chimney), contact specialized distributors; our team remains available for all your grey cement needs.
Standard Portland cement (CPJ 45, CPJ 55) loses its mechanical strength beyond 500 °C: calcium silicate hydrates decompose and concrete spalls. Refractory cement (often called "ciment fondu" or CAC — Calcium Aluminate Cement) is formulated from calcium aluminates fired at very high temperature. It retains its mechanical strength up to 1,500 °C or even 1,800 °C depending on quality, and resists thermal shock. It is essential for any structure subjected to high temperatures: furnaces, chimneys, fireplaces, incinerators.
The maximum temperature depends on the refractory cement grade. Common aluminate cements withstand up to 1,200-1,500 °C. High-grade refractory cements (high alumina content, Al₂O₃ > 70%) can withstand 1,600-1,800 °C. For very specific applications (metallurgy, steel industry), special refractory concretes reach up to 2,000 °C. Dakhla Aménagement advises the grade suited to your application: domestic fireplace hearth (up to 1,200 °C) or industrial furnace (1,500 °C and above).
Refractory cement is essential for all structures exposed to temperatures above 500 °C: industrial furnaces (cement plants, steel industry, ceramics, bakery, pizzeria), industrial chimneys and boiler flues, fireplace hearths and inserts, incinerators, flue pipes, foundry slabs, burner insulation, sauna benches and bread ovens. For a domestic fireplace hearth, a refractory mortar based on aluminous cement is sufficient. For an industrial furnace, a formulated refractory concrete is necessary.
Refractory cement is a technical product significantly more expensive than standard Portland cement. Expect about 8 to 15 DH/kg in 25 kg bags depending on grade and origin (European, Turkish, Chinese). In 1T big bag, the price drops to 6,500-12,000 DH/T depending on quality. Ready-to-mix refractory mortars (cement + refractory aggregates) are sold at 12-20 DH/kg. For an exact price, contact specialized distributors. Our grey CPJ 45 is priced by personalized quote, delivered to Dakhla sites.
Applying refractory cement requires precautions: mixing with clean water and refractory aggregates (chamotte sand, bauxite) — never use standard siliceous sand, which would melt. Slow and progressive firing (temperature ramp in stages over 24-48h) to evacuate mixing water without cracking. Typical dosage: 300-400 kg/m³ of refractory cement for refractory concrete. Respect the setting time (aluminous cement sets in 2-6h, faster than Portland). For critical structures, hire a professional and request a firing plan.
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ReadOur production: CPJ 45 on request and CPJ 55 on request, delivered to Dakhla sites (delivery included, 48h/24h). Free quote within 24h.