Stone+exercises

Rubble: Roughly broken stones of any shape bounded in mortar Ashlar masonry: regularly cut blocks (usually rectangular)
 * Stone Exercise**
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Because of its weight and the precision with which it can be shaped, stone masonry, in contrast with brick, does not depend on strong bonding for stability where it supports only direct downward loads. In most areas where stone is available, it has been favoured over other materials for the construction of monumental architecture. Its advantages are durability, adaptability to sculptural treatment, and the fact that it can be used in modest structures in its natural state. But it is difficult to quarry, transport, and cut and its weakness is tension limits its use for beams, lintels, and floor supports.
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Because of its weight and the precision with which it can be shaped, stone masonry, does not depend on strong bonding for stability where it supports only direct downward loads. But the weight creates problems of stability when loads push at an angle.
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Superlative: strongest, most suitable Comparative: in contrast with, but (This is wrong Alejandra, the examples woud be those words loke CHEAP** __ER__ OR __MORE__ SUITABLE __THAN__...,they are indications of comparison) **
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