Prestressed Concrete - E-Book

Prestressed concrete is a form of concrete used in construction which is "pre-stressed" by being placed under compression prior to supporting any loads beyond its own dead weight. This compression is produced by the tensioning of high-strength "tendons" located within or adjacent to the concrete volume, and is done to improve the performance of the concrete in service. Tendons may consist of single wires, multi-wire strands or threaded bars, and are most commonly made from high-tensile steels, carbon fiber or aramid fiber. The essence of prestressed concrete is that once the initial compression has been applied, the resulting material has the characteristics of high-strength concrete when subject to any subsequent compression forces, and of ductile high-strength steel when subject to tension forces. This can result in improved structural capacity and/or serviceability compared to conventionally reinforced concrete in many situations.

Download Ebooks:

1. Prestressed Concrete Design

2. Prestressed Concrete by Krishna Raju

E-Books Building Materials - Construction

Building materials are those materials which is used for construction purposes. Many naturally occurring substances, such as clay, rocks, sand, and wood, even twigs and leaves, have been used to construct buildings. Apart from naturally occurring materials, many man-made products are in use, some more and some less synthetic. The manufacturing of building materials is an established industry in many countries and the use of these materials is typically segmented into specific specialty trades, such as carpentry, insulation, plumbing, and roofing work. They provide the make-up of habitats and structures including homes. Commonly used building materials are : Cement, Sand, Aggregate, Steel, Wood, Tiles, Marble Stone e.t.c.

Building Materials E-Books:

1. Building Material by Duggal

2. Building Material -1 IGNOU

3. Building Material -2 IGNOU

4. Engineering Materials - IGNOU