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Showing posts from November, 2020

Evacuation Pattern in High Rise Buildings

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INTRODUCTION: Of all the magnificence and grandeur that the tall skyscrapers and apartments possess, with time, they have become indispensable to meet the demands of the shelter of the ever-increasing population around the globe. Here we come across the term ‘high rise building’. This refers to a building whose height creates different conditions in the design, construction and use. Along-side the construction, the safety of the occupants has emerged as an essential aspect of the high-rise buildings. High-rise buildings are required to have a Fire Safety and Evacuation Plan in accordance with IFC 404. Design and Construction: Fire is the major concern of safety in the high-rise buildings. In the case of fire protection and effective evacuation, it has been quite evident that the design of the building plays an important role. A design where the influence of fire and smoke spread throughout the building is taken into consideration has become crucial. Evacuation of occupants, near the ...

Electrochromic glazing in building

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 Introduction Electrochromism is the phenomenon where the colour or opacity of material changes when a voltage is applied. This is used to make electrochromic smart windows for skylights, facades, and curtain walls that can block ultraviolet, visible, or (near) infrared light instantaneously and on-demand. Electrochromic glass, which can be directly controlled by building occupants through integrated building automation, mobile and voice control, is popular for its ability to improve occupant comfort, maximize access to daylight and outdoor views, reduce energy costs and provide architects with more design freedom. Working principle An electrochromic material is made of transition metal oxides like tungsten trioxide (WO3). A 3-D nanoporous structure with "tunnels" is formed which allows dissociated ions ( H+, Li+) to pass through the substance when an electric field is applied. WO3 + n(H+ + e-) → HnWO3 A smart glass consists of 7 layers of which first and last are trans...

Vetiver System: The Soil Healer

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Introduction: Soil disintegration is one of the biggest environmental issues confronting the earth today, and the North-Eastern district of India, with substantial rainfall, is especially affected. Vetiver Grass system is a well-established arrangement for the assurance of soil slants from disintegration. It is utilized for this reason in more than 100 nations all through Asia, Africa, and America, where it is an easy, environmentally sustainable, and community-friendly arrangement.  Why this method? Conventional hard engineering interventions that mean to legitimately diminish disintegration are exorbitant and ecologically harmful. Thus vetiver, a C4 plant, has held up as a fantastic green solution to this circumstance. Vetiver, a plant elevated to preserve soil and water for agribusiness by the World Bank, advanced in the last part of the 1990s has turned into a significant soil bioengineering tool. The foundations of vetiver develop quickly and can accomplish a profundity of 3m ...

Submerged Floating Tunnel

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Introduction:-  A submerged floating tunnel, also known as submerged floating tube bridge, suspended tunnel, or Archimedes bridge, is a design for a tunnel that floats in water, supported by its buoyancy, self-weight, and constraint forces resulted from cable system and thus submerged to a certain depth underwater. It is a tube-like structure made of steel and concrete placed deep underwater to avoid water traffic and weather. It is designed to accommodate road or rail traffic.                      Construction:-  The concept of submerged floating tunnels is based on well-known technology applied to floating bridges and offshore structures, but the construction is mostly similar to that of immersed tunnels. Huge tunnel sections are prefabricated in a dry dock and the sections are moved to the site. The sections are then sealed, sunk into place while being sealed, and, when the sections are fixed to each other, the seals ...

Plastic Roads

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Rise of The Planet of The Plastics From waking up to a ringing plastic alarm, drinking water from a plastic bottle, carrying a plastic bag to storing food in plastic containers, plastic has become an inseparable integral part of our lives.  Adversaries always follow up with excessive utilities. Plastic garbage is proving to be a menace across the country, clogging drains, choking voiceless animals, soil degradation, plastic has had been beneath all. Furthermore, plastic can be recycled only 3-4 times, and the melting process releases highly toxic fumes. Plastic Roads, The Indigenous Innovation Aimed to overcome the growing problem of plastic waste disposal the Government of India decided that all road developers in the country must use waste plastic, for road construction after the technology for this was developed by the ‘Plastic Man’ of India, Prof. Rajagopalan Vasudevan. He is a Professor of Chemistry at Thiagarajar College of Engineering, Madurai. He was awarded Padma Shree in ...