Learn : Painting new wood work : Knotting or killing the knot, Application of priming coat, Stopping, Application of finishing coats. Painting new wood work Following points should be attended to before painting new wood work: (i) Only well seasoned timber should be painted otherwise not only shall the paint be spoilt but […]
WOOD WOOL Generally it is bye-product of big timber industries in the form of shavings of light weight timbers like chir, deodar and kail etc. At times it may be specially prepared with the help of special planning machines. It is an effective heat and sound insulating material. It is fairly cheap and flexible. Generally […]
Continue ReadingREXINE Rexine : Molten PVC is applied to cotton cloth coming out of calendering machine and the treated cloth is then subjected to pressure between steel rollers. It is then printed in desired colours and patterns. It is finally polished with varnish and dried. It is available in rolls. It is mostly used in upholstery […]
Continue ReadingLearn : LINOLEUM : Linoleum floors Types of linoleum – Plain linoleum,Stamped or printed linoleum,Inlaid linoleum,Uses of linoleum, Thickness of linoleum LINOLEUM In it linseed oil is oxidized by exposure to air into a tough, rubber like substance which is then mixed with ground cork, wood flour, colouring matter and other ingredients. The resulting plastic […]
Continue ReadingAsbestos :Properties,Uses, Asbestos cement sheets,Types of AC sheets,Asbestos cement flat sheets,unreinforced corrugated asbestos sheet,Asbestos cement boards,Bakelite ASBESTOS Asbestos is available in nature as a mineral in Marwar, Garhwal (in U.P.); Bhandara (in MP) and Mysore. It is a silicate of calcium and magnesium found in the form of very thin fibers in venin’s of metamorphic […]
Continue ReadingQUARRYING open, or surface, excavation of rock used for various purposes, including construction, ornamentation, road building, and as an industrial raw material. Rock that has been quarried is commonly called stone. Quarrying methods depend chiefly on the desired size and shape of the stone and its physical characteristics. For industrial use (e.g., limestone for preparing […]
Continue ReadingCHARACTERISTICS OF GOOD BUILDING STONES A good building stone should essentially have the following characteristics of good building stone, qualities: characteristics of good building stone Appearance. For the face work of buildings this property is of extreme importance. From architectural point of view color of the stone should be such as to go well with […]
Continue ReadingLearn : Stones, Building stones,causes – Stone are gradually losing their universal use as a building materials, Uses – Stones are extensively used STONES Stone is a natural material of construction and is obtained from quarries. Since prehistoric days it has been used for constructing different components of buildings like foundations, walls, lintels, floors, roof […]
Continue ReadingSIZES AND WEIGHTS OF BRICKS The Indian Standards Institution, New Delhi has specified standard bricks of 19 cm × 9 cm × 9 cm with 1 cm thick mortar joints (the size of brick with mortar joints becomes 20 cm × 10 cm × 10 cm). Brick tiles should be 19 cm × 9 cm […]
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In this article Learn : Workability of concrete and Compaction factor test. WORKABILITY OF CONCRETE It is the amount of work required to place concrete and to compact it thoroughly. Workability of concrete increases with the addition of water but it reduces the strength and as such it is not a very desirable way of […]
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