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Light Expanded Clay Aggregate
WHAT IS LECA:
Leca is an acronym term for (light expanded Clay
Aggregate) which is produced in rotary kiln at about
1200 degree centigrade. LECA is imported in india by GBC INDIA.
PROPERTIESLIGHTNESS:Lightness of Leca is for the multi-separated air spaces which exist inside and among the aggregates, density
of aggregates, depending on the size of Leca, Is fluctuated from 380 to 710 kg/m3
SOUND INSULATION: Leca aggregate and block are among the best
insulating materials and according to conducted tests,
sound in Leca blocks with 10 cm width and 15 cm width
respectively fades 45db and 46 db and refers to relavant
standards codes are suitable for most of purposes.
THERMAL INSULATION:
Thermal conductivity coefficient for LECA
aggregate is about 0.09 < < 0.101 and for
Leca concrete 0.208 w/mc with density of 800 kg/m3.
the results have tested for the high
quality for insulating feature of Leca products.
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y
NON-DECOMPOSABILITY: Leca aggregate strongly resists against alkaline and
acidic substances and pH of nearly 7 makes it neutral in
chemical post reaction with concrete.
WATER ABSORPTION: For closed inside porousness, average water absorption
of Leca aggregate (0-25 mm) is about 18 percent of
volume in saturated state during 72 hours.
APPLICATIONS AND ADVANTAGES: LECA aggregates are available in various sizes. Four usual gradations are 0-4mm, 4-10mm, 10-25mm
and 0-25mm. Leca bulk dried density and their applications for different gradations are illustrated in table below:
Leca wide applicability Leca Gradation Density (Max)
Leca Light Weight Concrete, light weight block, Prefabricated Panels&Slabs. Light Filler, Leca Mortar and Water Purification system. Agriculture & Aquaculture.
0-4 mm 710 kg/m
Light Weight Concrete, light weight block, Prefabricated Panels & Aquaculture, Ornamentation.
4-10 mm 480 kg/m
Lightweight Filler Concrete, Sewage system. Landscaping, Agriculture and Aquaculture, Drainage.
10-25 mm 380 kg/m
Floor and Roof sloping, Light weight Filler, Road Construction. 0-25 mm 430 kg/m
FIRE RESISTANCE: Since Leca aggregates are exposed to 1200 degree
centigrade temperature in rotary kiln, these aggregates
are suitable fire resistance and have already passed the
practical test during the producing process.
walls made of Leca blocks (about 130 kg/m ) can resist
3 hours against fire and fire stretch which should be
considered a crucial safety element.
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LECA IN CONSTRUCTION
Lightweight aggregates concrete:
In all the cases which lightening and insulation should be considered in buildings, Leca light weight aggregate
(structural& non- structural) comparing to autoclaved aerated concrete foam concrete or concrete made of
pumice or scoria has a wider range of applicability.
Leca lightweight concrete block:
Leca block (back) is produced by mixing of Leca aggregates, Cement, sand and water. Using of Leca
aggregate decreases the concrete density.
ADVANTAGES:
1- Lightening up to 30% of dead load.2- Self thermal & Sound Insulation 3- Appropriate Behavior in Earthquake.
Low Module of elasticity of Leca Concrete, and having
cement base material as well as its mortar, in addition
to the lightness, reduces the destructive effects of
earthquake on structure. Shapes of Leca blocks are
designed for conducting vertical mortar in joints which
minimizes the rubble threat.
Referring to mentioned reasons, using of Leca blocks
prevents buildings from asymmetric settlement and
other detrimental side effects.
4- Physical Operation:
Leca Blocks are suitable for any physical operation
like cutting, nailing, transfixing and ridge extending to
make proper route for wire, pipe and othe installing
components without any cracking.
5- Accelerating Construction, Saving time, Labor, and material:
For lightness and different sizes and dimensions of Leca blocks, walling up could be done in high speed which
leads to save time, labor and material.
GBC INDIA
A/408, Neelkanth Palace,100 Ft., Satelitte,Ahmedabad-380015Phone : 079-26930619Mobile : 9825070625 , 8866117051website : www.lecaindia.orgemail : [email protected]
6- Safe for Installation:
Being chemically neutral, Leca aggregate and blocks
are the best bed for building installation and prevent
pipe and wires from decay.
Leca blocks are designed in a way not to be only
lightweight but cover all required.
FLOORING AND ROOFING: Lightness, insulating, durability, non-decomposability,
structural stability, and chemical neutrality features are
collected in Leca as the best lightweight aggregate
for flooring and roofing and in the most suitable and
reasonable replacement for pumice, scoria and
polystyrene, moreover Leca aggregates are used
to mark insulating lightweight concrete for all floors
substructures under stone, marble or ceramic etc.
LECA AGGREGATE IN AGRICULTURE: Leca prepares the best convenience bed for growth of
plants due to:
Ventilating of the soil and root, preventing soil from
evaporation and saving water for sponge like body
of aggregate, water feeding adjustment, lightness
insulation, chemically neutral, environmental-friendly,
cleaner than soil and no pestilential effects on soil,
plants or your hands.
FILTRATION: Being utilized in house waste water treatment as Leca-
made filters, is supported by its features in question.
Leca built home keeps you warm in winter and cold in summer
For more details contact:
Advantages:
AGRILECA: EXPANDED CLAY WITH SPECIFIC PH FOR HANGINGGARDENS, NURSERY-GARDENING AND HORTICULTURE
A special LECAAgriLeca is the Italian-made expanded clay designed specificallyby Laterlite for flower-growing, horticulture andgardening which uses top quality and selected raw materials toobtain, besides the renowned advantages offered by Leca, alsoa very low salinity release.
NaturalAgriLeca does not contain organic substances, does notdecompose, and is rot-free and parasite-free.
Easy to useAgriLeca can be kept for an unlimited time, without ever changing.Supplied in bags it is easy to use, store, carry and dose.
PracticalAgriLeca is produced in two different grain sizes, 3÷8 and 8÷15;it is supplied pumped with tank trucks, loose in dumpers or in50 liter plastic bags (20 bags per m3 , in pallets of 65 bags.Dry weight approx. 440 Kg/m3 (22 Kg/bag) for sizes 3÷8 andapprox. 380 Kg/m3 (19 Kg/bag) for size 8÷15.
Specific pHIts pH is between 6 and 7.
Fields of Use:Mixed in the soil or as a draining layer or humidity preservationlayer for hanging gardens, flower pots and plants in vases.Filling up of surfaces for the cultivation of vase plants.Arrangement of flower pots, Hydroculture.
Fields of Use:
VASE PLANTSAgriLeca, in peat substrates limits excessive water retention, enhances drainage and increases the porosity for the air, anessential factor for the proper growth of roots and plants; a humid but not wet soil limits the formation of rotten roots and parasite fungus. AgriLeca does not release any salinity and does not change the pH factor of the mixture, thanks to its low buffer power.
AgriLeca does not turn yellow, does not pack down, doesn't change or decompose in time or due to humidity; it's aesthetically nice to see. The quantities for the AgriLeca mixture with peat or the already prepared peat substrate, must be chosen by the flower-grower according to the plant, the peat, the irrigation times used in the greenhouse. Generally it ranges from 20% (1 part of AgriLeca every 4 of peat) to 40% (2 parts of AgriLeca every 3 parts of peat).
HANGING GARDENSAgriLeca is the right product for creating lightened draining layers for plants and hanging gardens. In the mixtures with the cultivation soil, it assures lightness to the structure and a water and air reserve for the plants. AgriLeca is perfect for filling flower pots and boxes. It can be supplied with dumper trucks or tank trucks equipped for vertical pumping up to 30 m or horizontal up to 80÷100 m.
FLOWER POT ARRANGEMENTAgriLeca has a pleasant aesthetical appearance, and has become a must for plants cultivated in vases. The brownishround (not spherical) granules are a natural finishing for flower pots and flower arrangements.
BOX FILLINGAgriLeca is used to fill boxes and assures a constant temperature, drainage, humidity level and no maintenance, especially when the roots stick out of the vase..
PLANTS IN GREEHOUSE CONTAINERSThe soil in the containers is subject in time to pressing due to its weight and the water. Adding AgriLeca significantly and permanently improves its porosity features for air and drainage, thus avoiding the suffocation of the roots and enhancing the overall result. Furthermore, the soil, with 20-30% of AgriLeca, reduces the excessive weight of the containers, yet assuring the necessary stability.
AgriLeca is also useful when moving plants from the container to the customer's garden. A layer of AgriLeca on the bottom of the hole assures drainage and the right level of humidity so the plants take root better.
HYDROCULTUREAgriLeca is the ideal substrate for hydro-culture. The minimum level of salinity released assures the inertia of the substrate, primary condition for the proper operation of the system. It is also lightweight and easy to handle, it has moderate waterretention and excellent porosity for air. The shape and the different sizes of the grains are such as to “bound” well and assure a good support to plants, even tall and heavy ones.
Lightweight Expanded Clay Aggregate (Leca) is a great growing medium for all plants. It provides excellent drainage as well as moisture retention. Use it as a decorative mulch for potted plants, in ground plants, as an add mix to containers, and as a bottom layer for drainage. It is also widely used in hydroponic growing and is pH neutral. The pores in the stones store water and release water when required therefore providing an excellent environment for root development. Ideal for roses, orchids and all types of fruits and vegetables
Light expanded clay aggregate, also commonly referred to as "grow rock", is ideal for indoor hydroponic growth because of its neutral properties - L.E.C.A. has no acid or alkaline characteristics. Hydroponics gardeners appreciate the neutrality of L.E.C.A. because so many are aware how difficult it is to maintain a perfect alkaline/acidic balance in soil gardening
Because L.E.C.A. comes in the form of lightweight pebbles, nutrients are carried to the plant's roots on a continuous basis. Although continuous saturation of plant roots typically results in root rot, L.E.A.C. eliminates the root rot threat because of the distribution of the pebbles - which allows adequate space and oxygen between the L.E.C.A. pebbles and the plant's roots.Pack size: 50 ltrs. (Approximately 18kg when dry)
Coverage:One bag will cover approximately 1 Sqm at 50mm depth.
Granule size: Approx. 8-12mm
Density:The dry density of lightweight expanded clay aggregates is approximately 350 kg/m3.
Description & Application: Expanded clay granules, generally known as LECA (acronym of lightweight expanded clay aggregate), are granules of fired clay, used in construction and horticulture.
LECA is made by pelletising and firing clay in a rotary kiln at a very high temperature. As it is fired, the organic compounds in the clay burn off forcing the pellets to expand and become honeycombed while the outside surface of each granule melts giving a ceramic shell. The resulting granules are lightweight, porous, and have a high resistance to crushing.
Being a natural product LECA contains no harmful substances, it is inert with neutral pH, The granules are resistant to frost and chemicals, and will not break down in water. They are also non-combustible and have excellent sound and thermal insulation properties.
HorticultureExpanded clay pellets are pH neurtral, and are porous, yet have the ability to store water. The gaps between the pellets provide good aeration for root systems.By virtue of being lighter than normal aggregates clay granules are easier to transport and handle and are frequently used by sports and recreation contractors for drainage and back-filling to concrete structures. Expanded clay pellets are used as a substrate in hydroculture / hydroponics, and blended with other growing media to improve drainage insulate roots from frost. They can also be spread as a top dressing (mulch) around plants to retain moisture and help prevent weed growth.
Applications:
Filtration and purification of wastewater and water for fish farms. Insulation especially under flooring on roofs in particular for "Green Roofing Systems".Heat proofing in kilns, stoves and ovens.As a component in lightweight concrete. and as a backfill to structuresAgriLECA- Growing Media
AgriLECA is our trade name for "expanded clay," a lightweight gravel which is imported specifically for hydroponic cultivation. AgriLECA media is the first choice for many commercial growers specializing in flower and vegetable cultivation. Not to be confused with many other kinds of expanded clay which look similar but which are often toxic, AgriLECA is pH stabilized and releases practically no minerals into the nutrient stream; in other words AgriLECA is almost completely inert - except for offering excellent moisture and oxygen capacity to stimulate healthy root development.
Clean and dust free Strong pebble structure doesn't crush 4-10 mm pebble size range
AgriLECA is available in sizes10 ltr , 50 ltr , 100 ltr Bag
AgriLECA clay pebbles are made of 100% natural clay. Hydroton is inert, pH-neutral, clean and at the same time, decorative.
Potting media for Orchids - Used alone or in combination with coconut husk chips, bark, charcoal or other orchid media, AgriLECA porous structure can provide excellent aeration around the roots while its ability to act as a water reservoir will be appreciated by your orchids when water is needed. The size of the pebbles is perfect for medium to large Cattleyas and Laelias.
Hydrophonic/Hydroculture media - The capilliarity and the structure of the clay pebbles ensures good root aeration and prevents rotting, excess acidity and soil pests.
Drainage - Compared to gravel, AgriLECA is lighter and can act as a water reservoir. AgriLECA can then release the water when its surroundings needed it.
Decoration - With its red colour and mostly round shape, AgriLECA is often used as a decorative top-layer for indoor plants and outdoor gardens. As a top layer, it will also prevent the top soil from drying out quickly.
AgriLECA CLAY PEBBLES (10 Liter/10+lbs)
GBC INDIA
A/408, Neelkanth Palace,100 Ft., Satelitte,Ahmedabad-380015Phone : 079-26930619Mobile : 9825070625 , 8866117051website : www.lecaindia.orgemail : [email protected]
For more details contact: