| Characteristics of blocks : | Steam Curing - AAC | Natural Curing - ALC/NAAC |
|---|---|---|
| Density | 600-750 | 600-800 |
| Compressive strength required | 30+ Kg/cm² After 3 Days |
25+ Kg/cm² After 28 Days |
| Change in strength | No gain in strength in Future | Gain in strength Day by Day |
| Block shipment | Next Day | Can ship After 10 Days |
| Water absorption | 20-24% | 12-20% |
| Raw material | Water Cement Lime Gypsum Fly ash Aluminum powder Coal/Wood (for steam) |
Water Cement Lime Gypsum Fly ash Aluminum powder Supplementary additives (hardener etc.) |
| Curing type | Pressurize steam | Natural (water) curing |
| Curing period | 12 Hours | 10 Days minimum |
| Compressive strength and water absorption percentage are related to density. | ||