Современные проблемы промышленного и гражданского строительства на занятиях английского языка. Кузьмина Е.В. - 31 стр.

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4. Study the following text and then give it a title:
Concrete – unlike many buildings materials – is equally a framing and an
enclosing material. It can be used to construct a skeleton; it can also be used to
construct a complete weather tight shell of floor, walls and roof. In this respect
it is one of the few total building materials.
It is hardly surprising that for a long time reinforced concrete was treated
in a similar manner to a steel frame, clad in some other material.
Steel needs protection from the external elements and from internal fire;
concrete need neither of these. Steel was a construction material of parts
connected together; concrete could be handled to produce a monolithic structure
including enclosing surfaces.
The present stage of evolution shows and appreciation of concrete as a
total material.
5. Render the text in Russian:
Concrete. Concrete is and artificial stone. It is made by mixing a paste of
cement and water with sand and crushed stone, gravel, or other inert material.
After this plastic mixture is placed in forms, a chemical action takes place and
the mass hardens. Concrete, although strong in compression, is relatively weak
in resisting tensile and shearing stress which develop in structural members. To
overcome this lack of resistance, steel bars are placed in the concrete at the
proper positions, and the result is reinforced concrete. In beams and slabs the
principal function of the concrete is to resist compressive stresses, whereas the
steel bars resist tensile stresses.
6. Render the following in English:
1. Лёгкие бетоны изготовляют на пористых естественных или
искусственных заполнителях. 2. Лёгкие бетоны на пористых заполнителях
применяют для изготовления панелей для стен, плит перекрытий и
конструкций каркаса. 3. Конструкции из легких бетонов следует
применять при отсутствии агрессивных воздействий. 4. Когда
конструкции находятся в агрессивной среде (наличие агрессивных газов,