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LECA (Lightweight Expanded Clay Aggregate) is an aggregate made of expanded clay at average 1200 C° in rotary kiln, the Yielding gases are expanded by thousands of small bubbles as long as this temperature and those will be provide many voids and honeycombs at these round shape aggregates when melted materials become cold.
Density grade | Bulk density(kg/m3) | Cylinder pressure strength(Mpa) | Every hour bibulous rate(%) | Strength label(Mpa) |
600 grade | 510-600 | >4.0 | <8 | >25 |
700 grade | 610-700 | >5.0 | <8 | >30 |
800 grade | 710-800 | >6.0 | <8 | >35 |
900 grade | 810-900 | >7.0 | <8 | >40 |
LECA for constrction