comparison+between+stone+and+steel

== After studying different construction materials, I’ll present a comparison between the uses in architecture and urban planning of stone and steel. For years stone has been used in monumental architecture due to its advantages regarding durability, adaptability and sculptural treatment, being used on its natural state on modest structures. The use of steel in architecture on the other hand, represents the most important innovation since ancient times, changing entirely the concept of wall and support. It provides far taller and stronger structures with less material. ==

==Analyzing the weaknesses these materials present we find that, stone is difficult to quarry, cut and transport, and it handles tension poorly. Despite the numerous advantages steel presents, its maintenance and protection are extremely expensive. Both are fundamental materials in construction, nevertheless, it’s important to know how to use each one according, not only to its structural characteristics, but also to the esthetics of the edifications to be built.== media type="file" key="INGLES.wma"