Delhi saltanat 1- Slave dynasty (1206-1290 C.E ) 2- Khilaji dynasty (1290-1320 C.E ) 3- Tughlag dynasty (1320-1414 C.E ) 4- Saiyyad dynasty (1414-1451 C.E ) 5- Lodhi dynasty (1451-1526 ...
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Latitude and Longitude Geography
What is Latitude It is the angular distance of a point on the earth’s surface, measured in degrees from the centre of the earth. It varies from 0 to 90° ...
Ready-mix concrete
Ready-mix concrete is a type of concrete that is manufactured in a factory or batching plant, according to a set recipe, and then delivered to a worksite, by truck mounted ...
Engineering Geology Introduction
Geological Engineering is the application of geological knowledge to the siting, design, construction, operation and maintenance of civil engineering structures and facilities. It is one of the rapidly growing fields ...
Fire Resisting properties of High- Performance Concrete
One important feature of normal concrete ( w/c ratio around 0.5 ) as a construction material is its fire resistance to make the structure safe in case of fire. Very ...
Stratified and Unstratified Rocks
Stratified rocks- These are layered rocks and possess planes of clevage or formation along which they can be split. Sedimentary rocks usually possess this property. Examples- Sand stone, lime stone, slate ...
What is Batching?
Batching is the process of controlling the quality of each ingredient of concrete in each batch. Any error in measurement of any ingredient is called batching error. Which causes variation ...
Seasoning of timber
Seasoning is the process of reducing the moisture content by drying under controlled conditions as nearly as possible at uniform rate from all parts of timber in order to prevent ...
What is Dry rot and Wet rot in timber?
Dry rot- Dry rot is attack on the sapwood by fungus and convert it into dry and powdry condition. Absence of sunlight, dampness, lack of ventilation, presence of sap and stagnant ...
What is plywood?
Plywood may be made from hardwoods, softwoods or a combination of two. Some common hardwoods include ash, maple, oak, teak etc. Plywood are veneers placed one above the other with ...