Paper Topic:

Construction Materials

POLY VINYL CHLORIDE (PVC

T-lock is part of poly-vinyl chloride sheet liming material . T-Lock is designed to protect new concrete sever pipe , structures and monolithic tunnels . In to prevent ravages of hydrogen sulfide gas /sulfuric acid attack and other forms of corrosion , the T-Lock can be used . Since the T-Lock manufactured with polymer vinyl chloride under high temperature and pressure , it provides continuous plastic lining . This plastic lining protects concrete substances against hydrogen sulfide and other gases , acids , etc . T-lock is designed in such a way so that locks mechanically interior

side of the structure . It acts as corrosion barrier . The physical properties of T-lock have been specified in the Standard Specifications for Public Works Construction (SSPWC , Green book 2000

The CPVC (poly-vinyl chloride sheet lining material ) shares most of the features and properties of PVC . The CPVC suits for self-supporting constructions up to the temperature level of 200 F . Poly vinyl chloride is commonly abbreviated PVC . More than 50 of PVC manufactured is used in construction works . Besides the PVC has been in such position to replace the traditional building materials such as wood , concrete etc the PVC production negatively affects on the natural environment and even on human health . Use of PVC can be made vinyl siding , magnetic stripe cards , window pros , gramophone records , besides pipe plumbing , water and sever industries . It is available in the colors white , gray and black in normal . Polyvinyl chloride discovered during 1835 by Henri Victor Regnault . The Russian chemist Ivan Ostromislensky and German Chemical Company attempted to use PVC in commercial products during early of 20th century . The CPVC is popular engineering material and it is available with low cost

Poly vinyl chloride is also known as PVC or vinyl . It is one of the most common synthetic materials . PVC is the major environmental health disaster and it is the worst plastic from an environmental health perspective . During building fires , PVC takes active part and it releases deadly gases such as hydrogen chloride . When burning starts it releases more toxic dioxins . Polyvinyl chloride is produced from monomer , vinyl chloride and it chemical formula is CH2 CHCI . Though many problems associated with PVC , yet it being used in construction industry also especially in the areas of piping , vinyl siding , and vinyl flooring

The use of PVC badly affects the environment since it produces dioxin which is byproduct of vinyl chloride . Dioxins are global health threat as they persist in the environment and even can travel for long distances . Dioxins have been linked with reproductive diss , variety of cancers , immune system suppression etc . It is not considered green building product . The physical properties of vinyl can be tailed for a verity of applications . Since the Vinyl is derived from petroleum naturally it produces emissions of toxic air /pollutants , carbon dioxide Hence it is hazardous and generates hazardous liquid and solid wastes which is harmful to other living human beings . The material is more than half of the weight rather than common plastics and...

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