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Agglomerates Torrey Orlopp IAR 332 Building Materials
What is an Agglomerate?
From the Latin “Agglomerare” meaning “to form into a ball”
In geological terms, they are large globular masses of lava formed from pyroclastic or intrusive volcanic breccias.
i.e. course accumulations of large blocks of volcanic material
The fluidal block formations are composed of coarse volcanic rocks that have become bonded in the lava once it has cooled.
Natural Volcanic Breccias
The inspiration for modern agglomerates began with the desire to preserve and celebrate nature’s beauty. They are used as a popular alternative to natural stone because of their recycled content, which reduces the depletion of natural resources.
What are Agglomerates used for?
Types of Agglomerates: Terrazzo: the first synthetic agglomerate material made of stone fragments held together with cement.
Cambria: a quartz-based engineered stone with an epoxy resin binder and pigments
Celador: is a cement-based agglomerate with finely ground quartz-based aggregates
IceStone: composed of 100% recycled glass aggregate in a cement matrix
Riverstone: natural stone pebbles suspended in transparent resin
Trend Q: composed of various sized granules of crushed quartz, granite or recycled glass and a pigmented polyester resin binder.
Synthetic Aggregate Samples
Cambria
Celador
Trend Q
Trend Q
How is it made? 1. Agglomerates are a form of aggregate meaning it is a mixture of granular minerals which can include natural or synthetic materials. The aggregate can be large or small, fragmented or whole.
2. Synthetic resins, epoxy or cementitious binders are mixed with the aggregate.
3. The mixture is compacted into slabs by a special vacuum and vibration process at high pressure.
4. The slabs are heat cured in a kiln at high temperatures. (left)
5. When the casting process is complete, the slabs are gauged calibrated and polished (right)
Also, solid agglomerates are produced in a variety of pigmented colors with granules of colored stone or glass. [Pictures courtesy of Trend USA]
Trend USA AgglomeratesVideo on the production and application of agglomerates by the company Trend USA, Miramar, Florida. http://www.youtube.com/watch?v=-ZapKAPAJsk
http://www.trend-group.com/en_US/trend-usa-mosaic-and-agglomerates
ESD Considerations Pros Using agglomerate materials reduces the
depletion of natural resources Agglomerates typically contain postindustrial or
post-commercial recycled stone or glass. Most agglomerates have a long life cycle Low maintenance requirements reduce energy
consumption
Cons Epoxy is a synthetic material that is considered
a carcinogen. Inhaling the dust from cut epoxy can be hazardous.
Properties of Agglomerates Durable Can be cast into any shape and match
any edge detail Virtually impenetrable to moisture Most agglomerates are resistant to acid
and staining Inherently antibacterial Will not fade in sunlight
Applications Solid agglomerates are used for horizontal and vertical interior millwork surfaces such as:tabletopsbar topsconference tableswindowsillsfireplace surroundsbathroom vanities shower wallsfood preparation areas
Maintenance and Cost? General maintenance: immediate removal of dirt, liquids and spills ASAP with a neutral detergent and cloth Always review manufacturers recommendations!
Cost: can be fairly inexpensive to expensive depending on brand, amount and quality.
Picture and Book Sources: Picture Sources: http://www.weiku.com/products/8556989/Architectural_Aggregate_stone.html http://www.stonetohome.com/gbu0-prodshow/Thames+Gold+SAMPLE.html
legacyindustrial.blogspot.comwww.rona.ca
www.cynergyergonomics.com www.accentmarblegranite.com jgkitchens.blogspot.com www.pentalonline.com http://www.prweb.com/releases/2008/08/prweb1212664.htm www.care2.com www.radford.edu graniteandmarblesupplies.com www.trend-group.com www.trendusa.com Courtesy of Google Images
Book Source: Gesimondo, Nancy, and James Christopher Postell. "Interior Millwork: Materials."Materiality and Interior Construction. Hoboken, NJ: John Wiley, 2011. 328-31. Print.