|Compressive strength (N/mm2) – (2 days)||≥ 20 N/mm²||> 27|
|Compressive strength (N/mm2) – (28 days)||42.5 to 62.5 N/mm²||> 50|
|Setting time (min)||≥ 60 minutes||130 – 150 minutes|
|Fineness (m2/ Kg)||Not specified in the Standard||370 – 390 m²/kg|
|Soundness (mm)||< 10 mm||< 1 mm|
|Relative Density||Not specified in the Standard||˜ 3.08|
|SO3||< 4%||< 3|
|Chloride||< 0.10%||< 0.08|
|Loss on Ignition (LOI)||< 10%||< 8.0|
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 carbo aluminate crystals, the increased rate of cement hydration, and the improved particle packing and overall concrete density, resulting in highly compact, superior strength concrete
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 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.
COMPATIBILITY – INSEE SANSTHA is compatible with:
- Chemical Admixtures complying with BS EN 450-1:2014
- Ground Granulated Blast Furnace Slag (GGBS) complying with BS EN 15167-1:2006
- Silica Fume complying with BS EN 13263-1:2005
- Manufactured Sand (MSand) complying with BS EN 12620:2013
- Individual home building.
- Structures requiring extended service life.
- Architectural and visually appealing concrete requiring high quality surface finishes.
- Landscaping concrete applications.