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C An interesting experiment



 

1. Glass is a fashionable material in contemporary architecture. Transparent buildings and structures are very popular in contemporary architecture. Structural glass components such as columns and beams are often required, but this material seems structurally unsafe because of its brittleness. For this reason a new construction technique has been developed using:

• very long overlapping glass segments to create glass beams. These are made by bonding the segments adhesively;

• a small stainless steel profile that has been added to the layout of the glass beam to reinforce it.

2.To prove that glass structures can be as safe as reinforced concrete, an experimental transparent pavilion has been designed (with dimensions 9 x 9 x 3.6 m3) that combines a number of innovative ideas. Many different kinds of glass and glass systems have been used. The outermost and the triple-layered insulating glass units have been tempered and sometimes laminated and some glass has also been coated with solar control glass to reflect some of the unwanted sunshine outwards. In other cases glass that can be heated electrically and glass panes free of iron oxide have been used to make the inside light more natural.

3. Painted, stainless, hot dip galvanised and weather resistant steel, as well as alu minium, have also been used for supporting structures. Aluminium has some advantages (it is light, resistant to corrosion and easy to work but also some disadvantages (its thermal expansion and conductivity are high and it has low elastic modulus and fire resistance). Stainless steel also offers some advantages (it has good fire resistance and it is easy to keep) but its high price is a major disadvantage. Both hot dip galvanised and painted steel are not as expensive, but they are difficult to work on site and are not resistant to corrosion.

 

Почитайте текст сова и определите соответствие и несоответствие содержанию текста (T) или (F).

1. Glass is very popular in contemporary architecture.

2. There is no way to create a glass structure that is as safe as reinforced concrete.

3. A transparent pavilion has been recently designed as an experiment that uses some innovative ideas.

4. There is only one type of glass in this pavilion.

5. Glass has also been used for supporting structures.

6. Hot dip galvanised steel is not resistant to corrosion.

 

Прочитайте текст снова и подберите соответствующее определение к словам.

1 outermost 2 stainless steel 3 galvanised 4 brittleness 5 pane a a metal made from steel that does not rust b fragility c external d flat sheet of glass e coated with zinc to protect it from rust

4. Прочитайте текст снова и напишите резюме, используя следующие выражения:



The text is about …

At the beginning of the text the author stresses (underlines, points out) that …

Then the author describes (suggests, states that) …

After that the author passes on to (description of, statement of, analysis of …}

At the end of the text the author comes to the conclusion (pays attention to the fact) that…

 

TEXT 3. Plastic

Прочитайте текст и выберете правильный вариант.

Plastic products offer a number of ecological advantages: they save resources, have a low maintenance cost and can be recycled. Furthermore they contribute to save energy (plastic foams are used for thermal insulation in many applications). Plastic is also useful for noise protection and insulation. The main fields of application of these materials are pipes, insulation, wall covering, flooring (both in houses and in public areas) and, quite recently, window frames (made of PVC). PVC stands for Polyvinyl Chloride and it is the plastic which has seen the most rapid growth in recent times in industry. PVC is often used in piping systems because of its good chemical resistance to corrosive fluids. PVC pipes are used for a great number of applications: to drain waste, for natural gas distribution, for electrical and communications wiring, for municipal water. As it is the newest primary construction material and entirely man-made, plastic is extremely versatile. Improvements made through research have increased its acceptance among designers, contractors and building code officials.

 

1 Plastic products save ...

A industry. B materials. C resources.

2 Plastic insulation is also useful for ... protection.

A recycled B resources C noise

3 PVC is the plastic whose use has grown more ...

A recently. B slowly. C primary.

4 The ... fields of application of these materials are in flooring.

A alternative B main C useful

5 PVC has good ... resistance to corrosive fluids.

A physical B public C chemical

6 PVC pipes are used for ... gas distribution.

A natural B chemical C piping

 

Прочитайте текст и ответьте на вопросы.

1. What are the advantages offered by plastic products?

2. How can plastic save energy?

3. What is plastic insulation useful for?

4. What are the main fields of application of plastic?

5. What does PVC stand for?

6. What are PVC pipes used for?

 

5. Прочитайте текст снова и напишите резюме, используя следующие выражения:

The text is about …

At the beginning of the text the author stresses (underlines, points out) that …

Then the author describes (suggests, states that) …

After that the author passes on to (description of, statement of, analysis of …}

At the end of the text the author comes to the conclusion (pays attention to the fact) that…

 





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