About Leca
Leca
The letters LECA stand for Light Expanded Clay Aggregate. Expanded clay aggregates are porous ceramic products with uniform pore structure of fine, closed cells and with densely sintered, firm external skin. It is manufactured in rotary kilns from raw material containing clay minerals. The raw material is prepared, moulded and then subjected to a firing process at temperature between 1100 and 1200 ºC, is expanded which results signi cant increasing in volume. LECA pebbles internal cellular structure with thousands of air-filled cavities gives thermal and sound insulation properties.
Expanded clay was developed in 1917 in Kansas City, Missouri, as Hydite, and it was also produced in European countries with different names. We are producing LECA since 1979 and exporting to many countries such as, Australia, Bahrain, India, Iraq, Kuwait, Malaysia, Qatar,Saudi Arabia, Singapore, South Africa, South Korea, UAE, Vietnam, etc.
LIGHT EXPANDED CLAY AGGREGATE (LECA) Leca
0-4 MM
4-10 MM
10-25 MM
LECA stands for Light Expanded Clay Aggregate. Expanded Clay Aggregates are porous ceramic products with uniform pore structure of fine, closed cells and with densely sintered, firm external skin. It is manufactured in rotary kilns from raw material containing clay materials. The raw materials is prepared, moulded and then subjected to a firing process at temperature between 1000 and 1200 °C, is expanded which results significant increasing in volume. LECA pebbles internal cellular structure with thousands of air-filled cavities gives thermal and sound insulation properties.
Leca Main Advantages
LECA aggregate advantages
which make every Leca Product
a unique building material.
— LIGHTNESS
— THERMAL INSULATION
— SOUND INSULATION
— FIRE RESISTANCE
— NON-DECOMPOSABILITY
— LIMITED WATER ABSORPTION
Lightweight Precast Elements and Masonry Units
LECA is the raw material for many prefabricated components. Leca blocks,
prefabricated panels, Lightweight brick, Artificial Stones, Floor Tiles, Wall Tiles and pavement are all well-known products which have advantage of lightweight,moisture resistance, fire resistant, sound insulation and thermal insulation.
LECA precast elements and Masonry Units are construction accelerator, time , labor and material saving. LECA building blocks are solid or hollow blocks of lightweight aggregate concrete. The base product is LECA.
LECA building blocks Properties
LECA building blocks are produced by mixing LECA with cement, sand and water. Blocks are cast in normal block making machines that compact and vibrate the concrete in one single operation.
LECA block is ideal for all types of exterior and interior walls, and suitable for any physical operation such as cutting, nailing, transfixing or screwing, also ridge extending to make proper route for wire, pipe and other installing components without any cracking on the material surface. It has all workability of normal block and doesn’t have any limitation of other lightweight blocks.
Lightweight and Insulating Grout
LECA mortar is type of premix of light weight concrete which can be used for roof insulation, cover steels member to protect against fire and corrosion, and also for block work to decrease more weight per square meter and increase the thermal and sound insulation.
LECA mortar is made of cement, additives and small size of Leca aggregate (0.1 mm to 4 mm) which has dry density 1000-1300 kg/m3 with 8 MPa Compressive strength.
