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LECA (Lightweight Expanded Clay Aggregate) is anaggregate made of expanded clay at average 1200 C° in rotary kiln,the Yielding gases are expanded by thousands of small bubbles aslong as this temperature and those will be provide many voids andhoneycombs at these round shape aggregates when melted materialsbecome cold. Physical performance index
No. | Item | Result |
1 | Apparentdensity | 1.4-1.8g/cm³ |
2 | Bu Bulkdensity | 0.75-1.1g/cm³ |
3 | Accumulationporosity | >36 |
4 | Specific surfacearea | 2-5X104cm²/g |
5 | Hydrochloric acidsoluble rate | <3.3% |
6 | Rub lossrate | <2.2% |
7 | compressionstrength | >50Mpa |
8 | Loss ofignition | <0.15% |
9 | Solublesubstance | Does not containharmful trace element to body |
