اهم 90 موقعا للمهندسين الجزء الثاني

اهم 90 موقعا للمهندسين

Concrete Safety

http://www.almohandes.org/vb/redirector.php?url=http://www.msds.com/
MSDS Solutions. Search by name or manufacturer. See also:
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Traditional Sculpture Hazards, a text site by Michael McCann, Ph.D., C.I.H., and Angela Babin, M.S., contains a small section on Portland cement. Lots of information on other sculpture materials.

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Suppliers and Manufacturers

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The Compleat Sculptor supplies alkali-resistant fibre (chopped and mat), latex additives, pigments and a variety of aggregates. They also carry Winterstone® and rubber moulding compounds. New York, NY.

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In Canada and the USA, supplies all types of additives, fibres, silica fume, materials for concrete.

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Artcast in Georgetown, ON, has casting supplies.

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Alec Tiranti, sculpture supply, United Kingdom.

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Ball Consulting Ambridge, PA, USA, supplies alkali-resistant glass fibres and acrylic as cement additives. The site also shows Hiram P. Ball's sculpture.

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Fibermesh makes polypropylene fibre additives for concrete.

http://www.almohandes.org/vb/redirector.php?url=http://www.nycon.com/
Nycon makes nylon fibres for concrete.

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Cem-FIL International "promotes and sells alkali resistant glassfibres as a primary reinforcement for cement based matrices." A information-filled site.

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Kuraray America mkaes PVA (poly vinyl alcohol) fibers.

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B-Lite makes polystyrene beads coated to attract cement paste.

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Master Builders, Inc. is involved in research and development and has an extensive site with information on mixtures, additives, finishes, and concrete canoes.

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Supplier of pigments, acid stains, fibres, sealers, in Canada, the U.S.A., Mexico and Brazil.

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Form and Build is an Ontario, Canada, distributor of supplies to the construction industry. (Sells siloxane sealer, sealers, fibres.)

http://www.almohandes.org/vb/redirector.php?url=http://specco.com/
Manufacturers of a large selection of admixtures, retardants, accelerators, form releases, and sealers for concrete.

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Conroc Systems Ltd. is a Canadian supplier and contractor...using glass fiber reinforced concrete in Calgary, Alberta. Suppliers for decorative concrete, including acid stains, polmers and sealers.

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Colors for Concrete (Arizona Oxides) has a overview of pigment use.

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SGS Concrete Product Colors has a colour chart to show the limited palette of pigments available.

http://www.almohandes.org/vb/redirector.php?url=http://www.kemiko.com/
http://www.almohandes.org/vb....rl=http (Triple-S Chemical)
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Sources for acid stains for concrete.

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Fillite®: hollow alumino-silicate cenospheres or microspheres derived from fly ash, used for weight reduction.

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Engelhard manufactures Metamax, their brand of metakaolin.
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An exceptional overview of pozzolans, in particluar metakaolin (Metamax) and how cement works.

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Advanced Cement Technologies, excellent reference articles on metakaolin.

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The Concrete Countertop Institute sells individual bags (40 lbs) of metakaolin in the U.S.A.

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Winterstone is a cement-based product made for sculptors. The site has excellent sections on casting and armature-type processes.

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"Milestone Hybridized Portland Cement is a specially formulated acrylic admixture for use in Portland Cement." You can order and purchase the product.

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A complete system, combining acrylic polymer additive, portland cement, sand, and glass scrim. Scrim is fibreglas mesh, alkali resistant, which can be used instead of hardware cloth.

http://www.almohandes.org/vb/redirector.php?url=http://www.vseal.com/
V-Seal manufactures an effective water-based sealer for concrete. Also available in Canada (Toronto) through simon*concreationcanada.com

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Seal-It, a Saskatoon, Saskatchewan, company, makes a line of concrete sealers.

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Manufacturers of 511 Porous Plus, a penetrating sealer for concrete and stone that does not change the surface quality. Can be ordered online.

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C-cure's Penetrating Sealer 978, water based, silicone type water repellent.

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Bio Vee, another concrete sealer that reacts with lime, is available here.

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Grace Construction is a supplier of catalysts, silica products, specialty construction chemicals, building materials and container sealants.

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Fox Industries has developed several admixtures and has an online catalog (Maryland, USA).

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General Resource Technology makes Melchem, a water-soluble, melamine-based, water-reducing admixture (a superplasticizer).

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For mould release agents.

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Supplier of mold-making equipment, rubber, resin and supplies, in Easton, PA. Online store.

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Milestone, a hybridized Portland cement, is a specially formulated acrylic admixture for art and sculptural use.

http://www.almohandes.org/vb....rl=http
Douglas and Sturgess Art Supplies, San Francisco, CA. Mold release agents, metal powders, glass spheres for lightweight concrete.

http://www.almohandes.org/vb/redirector.php?url=http://www.cpd.ca/
CPD, Construction Product Distribution Services in Concord, Ontario, supplies concrete-related products.

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Other Concrete Issues

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Centre for Architectural Structures and Technology at the University of Manitoba has been doing interesting research into flexible fabric formworks.

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Waste and By-Products as Concrete Aggregates: 1981 paper from National Research Council, Canada.

http://www.almohandes.org/vb/redirector.php?url=http://www.sbtc.ca/
Ecosmart Concrete Project, a web site about more environmentally friendly concrete.

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Romanconcrete.com: concrete from 1,800 years ago.

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Good summary of concrete research at Columbia University using scrap glass.

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Useful links to concrete sites including sculpture.

Specialized Concrete

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Don Potter's research into vermiculite-cement mixes to make casting blocks that can be easily carved.

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About LiTraCon, light transmitting concrete developed by Aron Losonczi a Hungarian inventor. Using 5% fibre optic glass imbedded in fine concrete, the material can transmit light and shadow.

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Ferrocement mailing list.

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About Ductal®, an "ultra-high performance material that possesses a unique combination of superior properties including strength, ductility, durability and enhanced aesthetics" developed by LaFarge.

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Canadian Building Digest, article on admixtures in concrete.

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Canadian Building Digest, why polymer modified concretes are recommended.

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Decorative-concrete.net has links to the decorative and stamped concrete industry.

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has forums about stamped concrete and acid staining.

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Manufacturer's site specializing in decorative concrete products.

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Cole Sonafrank's stained mosaic mortar. Discusses components of a mix, also links to standard mix page and a list of suppliers.

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Good overview of process and materials for stained glass stones.

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Good hyper tufa introductions with instructions.

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Silica Fume information from US Department of Transportation