Современные строительные и отделочные материалы (110,00 руб.)

Composition of DuPont Corian………………………………………………. 18 Перечень использованных электронных источников……………………………………. 20 MODERN BUILDING MATERIALS The construction industry consumes more natural resources than any other industry. <...> Considerable progress and breakthroughs have been made in recent years in concrete technology, which have largely gone unnoticed by the public at large. <...> It has been said that more progress has been made in the last 25 years than in the previous 150 years since Portland cement was invented. <...> Modern cement composites can now be engineered to have strengths approaching those of steel, energy dissipation capacities of body armor, and durability properties that can make products last basically indefinitely, and be as decorative and aesthetically pleasing as natural stone, yet with superior mechanical properties. <...> New glass concrete in Colombia University Concrete is arguably the most widely used construction material worldwide. <...> It provides an opportunity to recycle materials, thereby contributing to the conservation of natural resources. 4 Research in concrete materials has been conducted in Columbia University’s Civil Engineering Department and its Carleton Strength of Materials Laboratory since the early 1990’s, to advance the state of the art in concrete technology. <...> The use of crushed waste glass as aggregate in concrete is problematic because of the chemical reaction between the alkali in the cement and the silica in the glass. <...> The glass can be made alkali-resistant, for example, by coating it with zirconium — a solution chosen by the glass fiber industry, but impractical for post — consumer waste glass. 3. <...> Glass concrete precast facade elements Building facade elements are among the primary tools available to architects. <...> Numerous materials are at their disposal for this purpose: natural stone, brick, masonry, synthetics, metals, wood and architectural concrete. <...> By varying the color combinations of glass aggregate and cement matrix, glass aggregate grading and surface texture we can create a virtually unlimited number of possibilities. <...> For example, the coarseness of surface texture is controlled by the strength of the retarding agent, which determines the amount of cement matrix and fines that will be washed out after demolding. <...> Facade elements are not only subject <...>