All rights reserved. Some reference standards are also indicated. Items currently in the works may show in italics. A beam or truss rigidly supported at one end, or in the middle, but not at both ends, which has forces applied along the free arm or at the free end. Cantilever construction is used for canopies, balconies, large construction cranes, diving springboards, and in cantilever bridges where the span is supported not at the ends but toward the center of the bridge truss.
Many drawbridges are basically cantilevers.
A cantilever beam of given cross section is much weaker than a similar beam twice as long but supported at both ends. The transformation of the free alkali and alkali-earth hydroxides existent in the cement matrix into carbonates, due to a reaction with carbon dioxide available in the atmosphere. Test cells of 500 feet length are constructed for various combinations of bituminous, concrete and aggregate. Also referred to as a Camel. Calcareous sands are usually formed of a mixture of fragments of mollusk shell, echinoderm spines and skeletal material, coral, foraminifera, and algal platelets.