LECA: 1.Strong assimilative capacity 2.High utilization ratio 3. High compressive strength

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.

 

Physical performance index

No.	Item	Result
1	Apparent density	1.4-1.8g/cm³
2	Bu Bulk density	0.75-1.1g/cm³
3	Accumulation porosity	>36
4	Specific surface area	2-5X104cm²/g
5	Hydrochloric acid soluble rate	<3.3%
6	Rub loss rate	<2.2%
7	compression strength	>50Mpa
8	Loss of ignition	<0.15%
9	Soluble substance	Does not contain harmful trace element to body

  

LECA (Lightweight Expanded Clay Aggregate)