What Is Dampness? The most common source of dampness is due to the capillary attraction of sub-soil water in the foundation and walls of the building. Water can penetrate the masonry through faulty sills, bad workmanship, etc. and hence in buildings, a layer […]
Asphalt and Bitumen: Types, Properties, Uses, and Comparative Analysis
What Is Asphalt? A mechanical mixture of inert mineral, say like, brownish alumina, lime, silica, etc. and the asphaltic bitumen. The colour is usually black or brownish-black. At low temperatures, it usually remains at soil but becomes liquid at a […]
Unit Weight and Density: Definitions, Conversions, and Material Properties
What Is Unit Weight? The ratio of the weight of a material to its volume is its unit weight, sometimes termed specific weight or weight density. The unit weight of water, γw, is 9.81 kN/m3 in the SI system and […]
Gantry Girders: Design, Load Analysis, and Applications
Introduction of Gantry Girder The gantry girders are girders which supports the loads that are transmitted through the travelling wheels of the crane. The crane girder spans from column to column, this usually do not have any lateral support at […]
Bitumen: Types, Applications, and Comparisons with Tar
What Is Bitumen? The bitumen is the binding material that is present in asphalt. It also sometimes called mineral tar. It is obtained by partial distillation of crude petroleum. It is chemically a hydro-carbon. It is insoluble in water, but […]
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