Building Tech 01

• Plastics used in the construction industry are generally low-density non-load-bearing materials that are not subject to corrosion but may be degraded by the action of direct sunlight, with a corresponding reduction in mechanical strength.
• Many plastics are flammable unless treated; the majority emit noxious fumes in fires.
• Polycarbonate is a high-impact, strong material that blocks harmful UV rays and is lighter in weight, making it easier to install.
• Polycarbonate roofs are often used in decks, patios, and garages to allow for transparency while maintaining durability.
• Natural Lighting in polycarbonate roofs can be achieved in two ways: Transparent and Translucent.
• Hallow core is brittle and fragile.
• Bamboo has been unfairly relegated for use in furniture, bags, and wall décor.
• In some manufacturing industries, sawdust can be a significant fire hazard and source of occupational dust exposure.
• Sawdust is composed of small chippings of wood.
• Bamboo is a versatile material used as strips, split, or whole timber varieties.
• Bamboo comprises 80–90 percent of a bahay kubo.
• Wood dust is also the byproduct of certain animals, birds and insects which live in wood, such as the woodpecker and carpenter ant.
• Sawdust, or wood dust, is a by-product or waste product of woodworking operations such as sawing, sanding, milling, planing, and routing.
• Bamboo has experienced a renaissance as a building material due to increased public interest in going green.
• Corrugated polycarbonates are two layered sheets with a ribbed-like structure that can be reinforced with chopped glass fiber.
• Solid polycarbonate is a lightweight, durable and safe alternative to glass and is used on a variety of roofing projects including conservatories, carports, lean to's and more.
• UPVC, also known as Unplasticized Polyvinyl Chloride, is a low-maintenance building material used as a substitute for painted wood, mostly for window frames and sills when installing double glazing in new buildings, or to replace older single glazed windows.
• UPVC has many other uses including fascia, and siding or weatherboarding.
• The same material has almost entirely replaced the use of cast iron for plumbing and drainage, being used for waste pipes, drain pipes, guttering and downpipes.
• UPVC is a cheaper alternative to expensive hardwood timber and aluminum and is a popular material due to its durability and being a cost-effective option.
• Acrylic material is heated plastic stretched over a mold.
• Fiberglass is sprayed with a gel coated mixture over a mold.
• Phenolic resin or phenol-formaldehyde resin is a thermosetting, waterproof, low-cost, mold-resistant, high strength synthetic resin made from phenol and formaldehyde; has good resistance to aging; used extensively in the manufacture of adhesives, exterior and marine plywood, laminated products, and molded articles.
• Wall forms are held apart by spreaders, which are usually of wood.
• Construction tools and equipment are grouped into four: hand tools, power tools, equipment, and heavy equipment.
• Steel forms may be in the form of pans for concrete joist construction or steel decking or corrugated steel for concrete slabs and slab-and-joist construction.
• Hand tools are the tools that use power delivered by man only.
• Lumber is a major material used for shoring construction.
• Yokes are clamping devices for keeping column forms and tops of wall forms from spreading under the fluid pressure of newly placed concrete.
• Equipment is a term that refers to large, complex tools and machines that is designed to do a particular job.
• Form ties are used to space and spread wall forms, leaving a neatly finished depression in the concrete surface to be filled or left exposed.
• She bolts consist of waler rods that are inserted through the form and threaded onto the ends of an inner rod.
• Fiber boards are used as forms for concrete columns.
• Phenolic boards are used as forms for concrete columns.
• Scaffolds are temporary platforms designed to support workers and materials on the face of a structure and to provide access to work areas above the ground.
• Power tools are those that employ power supplied by forces other than that coming from humans.
• Wood formworks are reusable forms that may have a square or rectangular cross section.
• Steel is another major material used for shoring construction.
• The major components of metal shoring are: the ledger or the horizontal brace, the brace or the diagonal, the standard or the vertical component, and accessories such as heads, jacks and bases.
• Heavy equipment is equipment which is very large and very powerful.