Calcium Aluminate CHEGHER
Basic Features
Chegher is a pre-packaged ready to use high strength Castable, Made by blending IRC40 cement and its own aggregates.Chegher is Heat and thermal shock resistance up to 1200 celecius degree.
It is of high strength, abrasion and impact resistance concrete. Also it is corrosion resistance against Industrial wastewater, sulfates and dilute acids.
Chemical Composition (%)
MgO | Ti2O | Fe2O3 | CaO | Si2O | Al2O3 | |
< 1.5 % | < 5 % | < 19 % | < 41 % | < 6 % | > 35 % | Spec Limit |
< 1 % | < 4 % | ۱۵-۱۸ % | ۳۷ – ۳۹ % | ۴ – ۵ % | ۳۷ – ۴۰ % | Usual Range |
Physical Properties :
| Spec | Usual Range | Specification Limit | |
| Residue at 90 microns: | < 5% | ||
| Fineness (as measured by Blaine apparatus): | ۲۸۰۰ – ۳۱۰۰ | > 2700 cm2/g | |
| Bulk density: | ۱۱۵۰ kg/m3 | ||
| Specific gravity: | ۳٫۲ – ۳٫۳ g/cm3 | ||
| Refractoriness (PCE) on neat cement paste: | ۱۲۸۰ ˚c | ||
| Initial set (by Vicat needle): | ۱۸۰ – ۲۴۰ min | > 120 min | |
| Compressive strength after 24 hours: | ۴۵۰ – ۵۵۰ | > 300 kg/cm2 |