Air pollution occurs due to the presence of undesirable solid or gaseous particles in the air in quantities that are harmful to human health and environment. It can be defined as presence of foreign matter either gaseous or particulate or combination of both in the air which is detrimental to the health and welfare of…
Completed in 2007, the Wembley Stadium in London was not only built to welcome 1.5 million football and rugby fans each year, but it is also the UK’s leading venue for music concerts. The landmark feature that will inspire all of these visitors is the arch that sits above the north stand. Wembley Stadium is…
Materials testing, measurement of the characteristics and behaviour of such substances as metals, ceramics, or plastics under various conditions. The data thus obtained can be used in specifying the suitability of materials for various applications—e.g., building or aircraft construction, machinery, or packaging. A full- or small-scale model of a proposed machine or structure may be tested. Alternatively, investigators…
Sinkholes are a phenomenon that tend to baffle and frighten most people. How is it possible that the ground beneath our feet could just drop? How do we know if we’re nearby a sinkhole? What should we do if we see one? How are sinkholes fixed? The mystery of the unknown around sinkholes can be quite…
The first bridge on sea in India, the Bandra-Worli Sea Link reduces the journey time between two suburbs from 40 minutes to mere 8 minutes. Let us see the details of this wonder sea link. About Sea: Bandra-Worli Sea Link (BWSL) The Bandra Worli Sea link is the first bridge in India constructed on the sea and developed completely by the Indian…
The planning and construction of a building should be aimed at fulfilling the following requirements: 1. Strength and stability 2. Dimensional stability 3. Resistance to dampness 4. Resistance to fire 5. Heat insulation 6. Sound insulation 7. Protection against termite attack 8. Durability 9. Security against burglary 10. Lighting and ventilation 11. Comforts and convenience 12. Economy. 1. Strength and Stability: Building should be capable of…
Pavements are a conglomeration of materials. These materials, their associated properties, and their interactions determine the properties of the resultant pavement. Thus, a good understanding of these materials, how they are characterized, and how they perform is fundamental to understanding pavement. The materials which are used in the construction of highway are of intense interest…
The construction of plane figures such as triangle, circles, and polygons etc., used in plane geometry is called geometrical constructions. (i) A Pentagon is that which has five equal sides. (ii) A hexagon is that which has six equal sides. (iii) A heptagon is that which has seven equal sides. (iv) An octagon is that…
As we laid out in Part One of this blog series, the Moodna Creek Watershed, which covers 180 square miles of eastern Orange County, New York, has seen population growth in recent years and has experienced significant flooding from extreme weather events like Hurricane Irene, Tropical Storm Lee, and Hurricane Sandy. Reports indicate that the Moodna Creek Watershed’s flood…
Various types of steel are used depending upon the application. The main content of structural steel after iron is carbon. Structural steel sections are normally utilized for the construction of buildings, manufacturing sheds, transmission line towers, etc. What Is Structural steel Structural steel is a category of steel construction material that is produced with a…