The first slag blended cement to be introduced for the industrial segment construction in Sri Lanka, INSEE EXTRA PLUS is engineered from ground granulated blast furnace slag, reinforcing the sustainable longevity of constructions while also reducing the carbon footprint of concrete structures.
Promising high durability and performance, INSEE EXTRA PLUS was introduced to the local market to drive sustainable development and best practices across the country. INSEE EXTRA PLUS adds more value to constructions with elevated fresh and hardened properties of concrete such as superior strength, increased workability and high resistance to aggressive environments such as chloride, making it ideal for marine structures.
| Name : | INSEE EXTRA PLUS |
| Type : | Blended Hydraulic Cement |
| Sri Lankan Standard : | SLS 1247:2015 (Not confirmed yet) |
| Strength Class : | 42.5N |
| PROPERTY | SLS 1247:2015 Requirement (For Sulphate Resisting Cement) | INSEE EXTRA Average |
| PHYSICAL PROPERTIES | ||
| Compressive Strength (2 days) | ≥ 10 N/mm2 | ≥ 15 N/mm2 |
| Compressive Strength (28 days) | 42.5 – 62.5 N/mm2 | 50 N/mm2 |
| Setting Time | ≥ 60 minutes | 170 – 210 minutes |
| Fineness | Not Specified in Standard | 410 – 430 m2/kg |
| Soundness | < 10 mm | < 1 mm |
| Relative Density | Not specified in standard | 2.98 |
| CHEMICAL PROPERTIES | ||
| SO3 | ≤ 3.0 % | < 2.8 % |
| Chloride | ≤ 0.1 % | <0.08% |
| LOI | Not specified in standard | <3.0% |
| C3A in Clinker | ≤ 9.0% | < 8.0 % |
| Pozzolanicity | Satisfies the test at 8 days | Satisfies the test at 8 days |
INSEE EXTRA is compatible with:
INSEE EXTRA is used for:
INSEE EXTRA PLUS contains ground granulated blast furnace slag (GGBFS), a nonmetallic, recovered industrial co-product of iron blast furnaces used in steel production. Slag as a latent hydraulic has inherent chemical properties that produce denser concrete with low permeability. By decreasing bleed channels, capillary channels and void spaces in the concrete, INSEE EXTRA PLUS reduces the potential for corrosion of reinforcing steel, adding further longevity and durability to building structures.
Slag as a latent hydraulic has inherent chemical properties that produce additional calcium-silicate hydrate gel (CSH) – the glue that holds the concrete together – by continuously reacting with the water and other chemical elements in the mix over time. This in turn results in denser, hardened concrete with enhanced late strength.
INSEE Cement ensures the consistency and benchmarked quality of slag used in the manufacture of INSEE EXTRA PLUS with remarkable cementitious properties. high performing concrete structures. INSEE EXTRA PLUS results in concrete structures with enhanced properties that include higher compressive and flexural strength, lower heat generation and greater resistance to aggressive environments.
Due to an optimum particle size distribution and packing density, INSEE EXTRA PLUS exhibits highly improved levels of workability and decreased in water demand from the lower relative density of slag.
Durability and service life of concrete structures can come under threat by chloride. INSEE EXTRA PLUS controls the penetration of chloride in concrete by the improved chloride on binding capacity in slag, minimizing chloride induced reinforcement corrosion in concrete structures, thereby enhancing durability. This improved resistance to chloride in INSEE EXTRA PLUS makes it the ideal cement for marine construction, aggressive environment and water supply projects.
A wide range of tests and equipment to assess fresh and hardened concrete properties
A wide range of tests and equipment to assess and ensure your aggregate grade meets the demand and requirement of your concrete.
A range of tests to assess properties of fresh concrete that go beyond the traditional ‘slump test’, improving the quality and consistency of concrete.
Advanced testing with durability indicators to optimize structural performance and extend the service life of concrete structures exposed to severe environments.