الوصف

LECA (LightweightExpanded Clay Aggregate) LECA (Lightweight Expanded Clay Aggregate) is a aggregate made of expanded clay at average ***0 C° in rotary kiln, the Yielding gases are expanded by thousands of small bubbles as long as this temperature and porosity will appear by many voids and honeycombs at these round shape aggregates when melted materials become cold. LECA is a manufactured aggregate which has many advantages compare with natural lightweight aggregate and since ***7 has used under different brand name in USA and Europe countries. The clays and shales expanded were developed about ***7 in Kansas City, Missouri, to the production in a rotary kiln of a patented expanded aggregate known as Hyalite. LECA have been produced from many years ago in USA, Europe and Middle East countries.