Coursework.Info - Inspiration in an Instant

On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:

Introduction Lightweight concretes can either be Lightweight Aggregate concrete, Foamed concrete, Autoclaved Aerated concrete (AAC) or No Fines concrete. Lightweight concretes are not new materials, they have been known since the early days of the Roman Empire and they were used to construct parts of the Colosseum so this shows that the characteristics of such a concrete were realised along time ago. Lightweight Aggregate Concrete Different types of lightweight aggregates are used for structural concrete including natural or artificial aggregates, with the most frequently used aggregates being expanded clay, It is produced by crushing vesicular volcanic rock and sedimentary rocks, some lightweight aggregate concretes are obtained by crushing ash, and a metallurgical slag. However most manufactures obtain lightweight aggregate concrete from expanded clay, sintered fly ash and expanded slag. Before manufacturing a lightweight aggregate concrete, in a structure, its purpose must be known. The concrete could be used as a thermal insulator rather...

To see the full version of this document, and 143,651 others