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Terracotta belongs to decorative types of brick. They are produced of burned clay. Their structural properties being similar to the properties of brick, they are often used in a manner similar to brick. Terracotta also exists in a wide variety of colours from pure whites to blacks. Their colour depends on the colour of the glaze they are covered with. Different adhesive substances are used for the application of terracotta to the surfaces being decorated with them.
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TEXT 4. Brick
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Masonry construction is a method that has been used for centuries around the world. It is usually used for walls of buildings, retaining walls and monuments. The most frequent type of masonry is brick, but concrete block is also becoming more and more popular. Brick was one of the first building materials that man used and has been used since the times of the ancient Egyptians because it offers a great number of advantages. First of all, it has an affordable price and it is made of accessible raw material, which has long durability and good insulating properties. It is a strong material and is perfect for load-bearing systems where the loads are compressive. It is the size of a man's hand and therefore simple to use. The appearance of the final work depends on the ability and expertise of the bricklayer. Another advantage of using brick is that, like stone, it offers increased comfort in the heat of the summer and the cold of the winter. Being heat resistant, this material also offers good fire protection.
One of the disadvantages of using this material is that masonry must be built on a firm foundation to prevent settling and cracking, and in the presence of expansive soils the foundation may need to be elaborate. Moreover, this is a heavy material, consequently the structural requirements will have to be increased, especially if the area is subject to earthquakes.
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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…
VI. CONCRETE AND CEMENT
TEXT 1. CONCRETE
Запомните и выучите следующее термины.
concrete — бетон quality — качество
aggregate — заполнитель (бетона) tensile — растяжимый, вязкий
coarse — крупный, необработан- to crush - дробить
ный, сырой accordingly - соответственно
fine — тонкий, мелкозернистый the very — именно тот, тот самый
Определите части речи и переведите слова.
the very, slab, tensile, coarse, crush, gravel, member, cast, quality