Bahrain Lightweight Block - Lightweight masonry block

LECA (Lightweight Expanded Clay Aggregate)is an aggregate made of expanded clay at average 1200 C° in rotary kiln, theYielding gases are expanded by thousands of small bubblesas long as this temperatureand those will be provide many voids and honeycombs at these round shape aggregates when melted materials become cold.

The manufactured aggregates are produce in various sizes; Four usualgradesare (0-4) mm, (4-10) mm, (10-25) mm and mix grade 0-25 mmwhich has 430 kg/m³maxdensity, LECA boulder is a the bigger size of LECA with 100-500 mm size and 500 kg/m³density.

Some of the importantadvantagesof LECA aggregateare: lightness, thermal insulation by low conductivity coefficient, soundproofing by high acoustic resistance, moisture impermeable, incompressible under permanent pressure and gravity loads, non–decomposition against severe condition, fire resistant, Ph of nearly 7, freezing and melting resistance, easy movement and transportation, lightweight backfill and finishing, reduction of construction dead load and earthquake lateral load, perfect sweet soil for plants, best material for drainage and filtration.