STONE ____ walls are one of the oldest constructions known. ____ were made by laying stones one up on each other ____ any mortar, Stones were held together by ____. These constructions were ____ at the base. Later, they were improved by adding ____ and ____ mixed with water. Concrete is a ____ formed by cement, sand, and sometimes gravel It is usually ____ using steel, an iron ____. TIMBER Timber and wood ____ are two different forms of ____. Timber framing construction uses larger and fewer ____, it also uses ____ and tenon as fastening ____. On the other hand, ____ framing construction uses more timbers and ____, screws, and other ____ fasteners. Timber framing is a ____ construction method because the wood used is taken from ____ forests. Timber is strong and ____. It can be ____ with bricks, stone, and other construction ____. BRICK Masonry ____ is a method that has been used around the world, it is usually used for ____, buildings, and ____. The elements used for this type of construction are bricks and ____. They are used because of their ____ price, their insulating properties, and their strength. The result of the final works depends on the ability of the ____ and the quality of the materials.

CONSTRUCTION MATERIALS

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