Some of the most important building

Some of the most important building materials are : timber brink stone concrete metal plastics and glass.
Timber is provided by different kinds of tress. timbers used for building purposes are divided into two groups called softwoods and hardwoods. timber is at present not so much used in building construction as in railway engineering in mining and in the chemical industry where it provides a number of valuable materials.
however, timber is still employed as a building material in the form of boards. for the interior of buildings plywood and veneer serve a number of purposes.
A briсk is best described as a building unit. it may be made of clay by moulding and baking in kilns, of concrete, of mortar or composition of sawdust and other materials. in shape it is a rec: angular solid and its weight is from 1|6 to 9 Ib/
There exists variety of bricks for different purposes: ordinary hollow or porous lightweight multicolor bricks for decorative purpoman pular for many hundreds of years. The hand of the average man is large enough to take a brink and he is able to handle more thar 500 bricks in an eidht - hour working day. It is necessary therefore for the "would be" bricklayer to practise handling a brick until he dan control it with complete mastery and until he a able to place in into any desired position.
The brick may be securely handled by placing the hand ower the surfaсe of the upper part of a brick and by placing the hand over the surfase of the upper part of a brick with " the joints of the fingers on the opposite fage. It is better to protect the thumb and the fingers with leather pads, which also prevent the skin from rough bricks.
Sometimes natural stones such as marble, granite, basalt, limestone and sandstone are used for the construction of dams and foundations. Marble granite and sandstone are widely used for decorative purposes as well, especially with the puplic buildings.
Natural stone is used for foundations and for the construction of dams. The main varieties of building stone are basalt, granite, marble, sandstone and limestone.
Metals: aluminium, principally in the form of various alloys, is highly valued for its durability and especially for its light weight, white brass is frequently used for decorative purposes in facing.
Steel finds its use in corrugated sheets for girders, frames, ect. Various shapes are employed in construction.Plastics are artificial materials used in construction work/ for a vast number of purposes. nowadays plastics which are artificail materials, can be applied to almost every branch of building. from the laying of foundation to the final coat of paint. synthetic resins are the main raw material for plastics. plastics have some good advantages as they are lighter than metals, not subject to corrosion, and they can be easier machined. besides, thee are inflammable, they can take any color and pattern, and they are good electrical insulators. more over, they possess a high resistance to chemical action.
a lot of decorative plastics, now available , have brought about a revolution in interior and exterior design. but plastics are used now not only for decoration. these materials are sufficiently rigid to stand on their own without any support. they can be worked with ordinary builders tools.
laminate is a strong materials manufactured from many layers of paper or textile impregnated with thermosetting resins. this sandwich is then pressed and subjected to heat. laminate has been developed for both inside and outside use. it resists severe weather conditions for more than ten years without serious deformations a structural materials it is recommended for exterior work. being used for surfacing, laminate gives the tough surface.
foamed glass is a high - porosity heat insulating material, available in block made of exterior wall panels, and in industrial construction.
foamed glass has a high mechanical strenght, is distinguished by moisture, vapour and gas impermeability. it is non - inflammable, offers resistance to frost, possesses a hight sound adsorption, and it is easily sewn and nailed.
structural foamed glass blocks designed to fill ceitlings, and for making partitions in buildings and rooms, to ensure heat and sound insulation.
for insulation mineral wool or cinder wool is often resorted to.

Результаты (русский) 1:

Некоторые из самых важных строительных материалов: древесины грани камня бетонные металл пластика и стекла. Древесины оказывают различные виды деревьев. Пиломатериалы, используемые для целей строительства делятся на две группы, называемые хвойные и лиственные породы. Древесина является в настоящее время не столько используется в строительстве как в железнодорожной техники в горнодобывающей и химической промышленности, где оно обеспечивает ряд ценных материалов. Однако древесины по-прежнему используется в качестве строительного материала в форме советов. для интерьера зданий фанеры и шпона служить целый ряд целей.Briсk лучше всего охарактеризовать как единое целое здание. Это могут быть сделаны из глины литье и выпечки в печах, бетона, раствора или состава опилок и других материалов. в форме это rec: угловая твердого и его вес составляет от 1|6 до 9 Ib /Существует ряд кирпичей для различных целей: обычные пустотелыми или пористых легкий многоцветной кирпичи для декоративной purpoman пулар многие сотни лет. Рука средний человек достаточно большой, чтобы принять грани, и он не сможет обрабатывать более 500 кирпичи тар в eidht - часовой рабочий день. Это необходимо, поэтому для «бы» каменщика напрактиковать обработку кирпича до он дан контролировать его с полным мастерства и пока он возможность размещать в в любом положении.Кирпич может обрабатываться безопасно, поставив руки Ауэр surfaсe в верхней части кирпича и, поставив руки над покрытие верхней части кирпича с «суставов пальцев на противоположной файла. Это лучше для защиты большой палец и пальцы с кожаный прокладки, которые также предотвратить кожу от грубой кирпичей.Для строительства плотин и фонды используются иногда природные камни, такие как мрамор, гранит, базальт, известняка и песчаника. Мраморная гранита и песчаника широко используются для декоративных целей, а также, особенно с номиналом зданий. Натуральный камень используется для основы и для строительства плотин. Основные разновидности строительного камня-базальта, гранита, мрамора, песчаника и известняка.Металлов: алюминий, главным образом в виде различных сплавов, высоко ценится за его прочность и особенно за его легкий вес, белый духовой часто используется для декоративных целей в облицовке. Steel finds its use in corrugated sheets for girders, frames, ect. Various shapes are employed in construction.Plastics are artificial materials used in construction work/ for a vast number of purposes. nowadays plastics which are artificail materials, can be applied to almost every branch of building. from the laying of foundation to the final coat of paint. synthetic resins are the main raw material for plastics. plastics have some good advantages as they are lighter than metals, not subject to corrosion, and they can be easier machined. besides, thee are inflammable, they can take any color and pattern, and they are good electrical insulators. more over, they possess a high resistance to chemical action.a lot of decorative plastics, now available , have brought about a revolution in interior and exterior design. but plastics are used now not only for decoration. these materials are sufficiently rigid to stand on their own without any support. they can be worked with ordinary builders tools.laminate is a strong materials manufactured from many layers of paper or textile impregnated with thermosetting resins. this sandwich is then pressed and subjected to heat. laminate has been developed for both inside and outside use. it resists severe weather conditions for more than ten years without serious deformations a structural materials it is recommended for exterior work. being used for surfacing, laminate gives the tough surface.foamed glass is a high - porosity heat insulating material, available in block made of exterior wall panels, and in industrial construction.foamed glass has a high mechanical strenght, is distinguished by moisture, vapour and gas impermeability. it is non - inflammable, offers resistance to frost, possesses a hight sound adsorption, and it is easily sewn and nailed.structural foamed glass blocks designed to fill ceitlings, and for making partitions in buildings and rooms, to ensure heat and sound insulation.for insulation mineral wool or cinder wool is often resorted to.