Modern building materials

1. MODERN BUILDING MATERIALS

2. Key vocabulary / expressions

• consider — рассматривать, обсувдать; обдумывать
• cross-section - поперечное сечение, поперечный разрез, профиль
• derive — получать; извлекать; происходить
• froth — пена; пениться
• handle — брать руками, держать в руках
• impermeability — и непроницаемость; герметичность
• kiln — печь для обжига
• mortar — раствор
• plywood — фанера

3. Key vocabulary / expressions

resist —v сопротивляться
span — промежуток времени, период времени
subject — подвергать; подчинять
tensile — растяжимый
veneer — шпон, фанера
mixing — смешивание
gravel— гравий

4. Building Materials

Some of the most important building materials are:
timber,
brick,
stone,
concrete,
metal,
plastics,
glass.

5. Timber

Timber is provided by different kinds of trees.
softwoods
hardwoods
not so much used in building construction (railway
engineering, mining, chemical industry )
used as a building material in the form of boards ( interior
of buildings plywood, veneer)

6. Brick

A brick - "building unit".
clay by molding and baking in kilns,
concrete,
mortar,
sawdust and other materials.
Purposes:
ordinary,
hollow / porous,
lightweight,
multicolor bricks
Bricks are usually laid in place with the help of mortar.

7. Stone

Natural stone is used for foundations and for the construction of
dams.
basalt,
granite,
marble,
sandstone
limestone

8. Metals

oAluminum (in the form of various alloys) is highly
valued for its durability and especially for its light
weight
oBrass is frequently used for decorative purposes in
facing
oSteel used for roofing, for girders, frames, etc.

9. Plastics

Plastics are artificial materials used in construction work for a
vast number of purposes. (Synthetic resins Plastics )
+
• lighter than metals
• not subject to corrosion
• can be easier machined
• inflammable
• can take any color and pattern
• are good electrical insulators
• a high resistance to chemical action.

10. Laminate

Laminate is a strong material manufactured from
many layers of paper or textile impregnated with
thermosetting resins. This sandwich is then pressed
and subjected to heat
inside
outside (use)
resists severe weather conditions
gives the tough surface.

11. Foamed glass

Foamed glass is a high-porosity heat insulating material, available in block made
of fine-ground glass and a frothing agent.
+
has a high mechanical strength,
non-inflammable,
resistant to frost,
sound insulator,
easily sewn and nailed.

12. Concrete

Concrete mixture of the proper consistency of
cement, sand and gravel or broken stone.
+
sets under water,
can be poured into moulds
it has very high strength
resists fire.
steel + concrete =reinforced concrete