The most recognized and highly demanded cement brand in the country, INSEE SANSTHA is Sri Lanka’s first blended cement (blended with Portland Limestone), and the only Portland Limestone Cement in the local market produced with fresh, benchmarked, high-grade quality limestone extracted from our own local quarries.
One in every three homes is built with INSEE SANSTHA, the first local cement brand to be certified under British Standards, while also being the first to be recognized as a low carbon emission product by the Green Building Council of Sri Lanka
|Name :||INSEE Sanstha|
|Type :||Portland Limestone Cement|
|Sri Lankan Standard :||SLS 1253:2015|
|Strength Class :||442.5R|
|British Standard :||BS EN 197-1:2011 CEM II/A-LL|
|PROPERTY||SLS 1247:2015 Requirement|
(For Sulphate Resisting Cement)
|Compressive Strength (2 days)||≥ 20 N/mm2||>25 N/mm2|
|Compressive Strength (28 days)||42.5 – 62.5 N/mm2||>50N/mm2|
|Setting Time||≥ 60 minutes||130 – 150 Minutes|
|Fineness||Not Specified in Standard||370 – 390 m2/kg|
|Soundness||< 10 mm||< 1 mm|
|Relative Density||Not specified in standard||~ 3.08|
|SO3||≤ 4.0 %||> 3.0%|
|Chloride||≤ 0.10 %||< 0.08%|
|LOI||< 10.0 %||< 8 .0%|
|Magnesia Content||≤ 5.0 %||< 3.0 %|
INSEE SANSTHA is compatible with:
INSEE SANSTHA is used for:
The limestone particles used in the manufacturing of INSEE SANSTHA have enhanced fineness and act as a lubricant in the mix, while also retaining water effectively, thereby producing highly workable concrete. These same limestone particles enhance the overall particle packing in the mix due to their engineered fineness, resulting in the augmented density of the concrete and minimized corrosion of reinforcements, making structures extremely durable.
The engineered limestone particles in INSEE SANSTHA show increased strength development in concrete due to three factors; the rapid chemical
reaction of calcium carbonate with aluminate compounds in the cement resulting in durable carboaluminate crystals, the increased rate of cement
hydration, and the improved particle packing and overall concrete density, resulting in highly compact, superior strength concrete.
The finer blended INSEE SANSTHA cement also allows for the concrete mix to be more flowable and moldable due to its increased cohesiveness, producing superior and aesthetic cement surface finishes.
With enhanced particle packing of limestone due to their nature results in less space for water between the solid grains due to reduction in the connectivity of pores in the mix. This result of enhanced particle packing and increased mix density makes the resulting concrete extremely watertight.
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.