LECA ( for Ladscape, Plant, lightweight soil)

详情

LECA has many advantage for agriculture and landscapes, it is used as a growing medium in Hydroponics systems, blended with ... LECA (Lightweight Expanded Clay Aggregate) is an 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 those will be provide many voids and honeycombs at these round shape aggregates when melted materials become cold. The clays and shales expanded were developed about ***7 in Kansas City, Missouri, to the production in a rotary kin of a patented expanded aggregate known as Haydite which was used in the construction of USS Selma, an ocean-going ship launched in ***9 year. There following in the USA the development of a series of aggregates known as Gravelite, Perlite, Rocklite and etc. In Europe, LECA commenced in Denmark, Germany, Holland (Netherlands) and the UK. The manufactured aggregates are produce in various sizes; Four usual grades are (**4) mm, (***0) mm, (****5) mm and mix grade ***5 mm which has **0 kg/m3 maxdensity, LECA boulder is a the bigger size of LECA with ******0 mm size and less than **0 kg/m3 density. Some of the important advantages of LECA aggregate are: lightness, thermal insulation by low conductivity coefficient, soundproofing by high acoustic resistance, moisture impermeable, incompressible under permanent pressure and gravity loads, nondecomposition 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. LECA is also used in water treatment facilities for the filtration and purification of municipal wastewater and drinking water as well as in other filtering processes, including those for dealing with industrial wastewater and fish farms. LECA has many advantage for agriculture and landscapes, it is used as a growing medium in Hydroponics systems, and blended with other growing mediums such as soil and peat to improve drainage, retain water during periods of drought, insulate roots during frost and provide roots with increased oxygen levels promoting very vigorous growth. LECA can mix with normal sweet soil in order to reduce the weight of plants and landscapes soils. LECA aggregate has many applications in agriculture, construction, geotechnical, civil and hydraulic engineering, Please let us to know your requirement and project in order to find best solution for your case by our technical department. Keywords: LECA, Lightweight Expanded Clay Aggregate, Lightweight Concrete, LWC, Lightweight Block and Tile, Lightweight Panel and Wall, Lightweight Finishing, Roof Protection, Lightweight Filling, Ground Stability, Soil Settlement Control, Water Filtering, Lightweight Sweet Soil, Light Agriculture Soil, Green Roof by Light Aggregate