The standard chosen by global building material manufacturers, Imerys. The stability of quality supports the trust in the products.
Imelis Secar51 Overview The global standard for building materials alumina cement that embodies ultra-fast hardening and high functionality, "SECAR 51." "SECAR 51" is an alumina cement with approximately 50% alumina content, widely used for many years in the field of building chemistry around the world. Its greatest feature is the ability to freely control "setting time" and "strength development" when used in conjunction with Portland cement. It provides overwhelming initial strength for floor repair materials that require foot traffic opening within a few hours and for emergency construction mortars where short construction periods are essential. Additionally, strict quality control results in minimal variation in chemical composition between batches, reducing the burden on development sites due to product stability. It offers optimal solutions to challenges that traditional cements have struggled to address, such as suppression of efflorescence, improved acid resistance and wear resistance, and accelerated curing at low temperatures.
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【SECAR 51 Main Specifications】 SECAR 51 is a hydraulic binder manufactured using bauxite and limestone as primary raw materials through an electric furnace melting method. It boasts high stability in chemical composition and physical properties due to strict quality control. ■ Chemical Composition (Typical Values) Al2O3 (Aluminum Oxide): 50.0 to 53.0% CaO (Calcium Oxide): 37.0 to 39.0% SiO2 (Silicon Dioxide): 4.0 to 6.0% Fe2O3 (Iron(III) Oxide): 1.0 to 2.5% ■ Physical Properties (Typical Values) Blaine Specific Surface Area: 3,900 to 4,200 cm²/g Density: 2.95 to 3.05 g/cm³ Bulk Density: 1.0 to 1.3 g/cm³ Color: Dark Gray ■ Setting Characteristics (According to EN 196-3) Initial Setting Time: More than 200 minutes Final Setting Time: Within +120 minutes from initial setting *Adjustment is possible in minute increments depending on the mixing ratio with Portland cement. ■ Compressive Strength (According to EN 196-1 / Standard Mortar Ratio) 6-hour Value: Over 30 MPa 24-hour Value: Over 50 MPa ■ Packaging 25 kg paper bags, bulk bags, etc.
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Applications/Examples of results
Fast-setting, fast-drying self-leveling material (SL material) Tile adhesive, grout, non-shrink grout material Concrete repair material, water stop, etc.
Company information
We are experts in solutions for specialized industries based on mineral resources. We support a wide range of fields, including construction, automotive, and consumer goods, providing highly regarded specialized solutions based on the processing and refining of mineral resources, synthetic minerals, and formulations. We support our customers with advanced technical services, enabling them to easily implement our solutions, achieve their goals, and maximize the use of minerals. Contact Us ：imerys.japan.sales@imerys.com
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