Ad
related to: expanded clay aggregate
Search results
Results from the WOW.Com Content Network
Lightweight expanded clay aggregate (LECA) or expanded clay (exclay) is a lightweight aggregate made by heating clay to around 1,200 °C (2,190 °F) in a rotary kiln. The heating process causes gases trapped in the clay to expand, forming thousands of small bubbles and giving the material a porous structure.
Semi-Hydroponics (Semi-Hydro or S/H) was the first passive hydroponic technique utilized for orchids, originating in the early 1990s, using Lightweight Expanded Clay Aggregate (LECA) as a medium in solid-bottomed containers, into which one or two, small-diameter holes were placed in the sidewall, setting the depth of the internal reservoir.
Expansive clay is a clay soil that is prone to large volume changes (swelling and shrinking) that are directly related to changes in water content. [1] Soils with a high content of expansive minerals can form deep cracks in drier seasons or years; such soils are called vertisols .
Expanded clay aggregate. Baked clay pellets are suitable for hydroponic systems in which all nutrients are carefully controlled in water solution. The clay pellets are inert, pH-neutral, and do not contain any nutrient value. The clay is formed into round pellets and fired in rotary kilns at 1,200 °C (2,190 °F). This causes the clay to expand ...
Expanded clay aggregate – Lightweight aggregate made by heating clay at high temperature in a rotary kiln; Fireproofing – Rendering something (structures, materials, etc.) resistant to fire, or incombustible; Firestop – Seal around openings in a fire-resistance-rated wall or floor; List of minerals – List of minerals with Wikipedia articles
Aerated concrete produced by the addition of an air-entraining agent to the concrete (or a lightweight aggregate such as expanded clay aggregate or cork granules and vermiculite) is sometimes called cellular concrete, lightweight aerated concrete, variable density concrete, Foam Concrete and lightweight or ultra-lightweight concrete, [17] [18 ...
Interactive maps, databases and real-time graphics from The Huffington Post
Plants are placed in net cups filled with an inert growth medium such as rock wool, expanded clay aggregate, sphagnum moss, or coconut coir. [5] [6] The net cups are suspended above a reservoir of water containing essential nutrients in solution. [7] Only the root tips are allowed to touch the surface of the reservoir.
Ad
related to: expanded clay aggregate