×

UPSC Courses

DNA banner

DAILY NEWS ANALYSIS

  • 24 August, 2021

  • 7 Min Read

Earthquake resistant buildings using Thermocol

Earthquake-resistant buildings using Thermocol

  • Thermocol could be the material of the future for the construction of Earthquake resistant buildings, with thermal insulation and could also save the energy required to develop construction materials.
  • Researchers at IIT Roorkee have found that thermoacol or Expanded Polystyrene (EPS) is used as a composite material in the core of reinforced concrete sandwiches, and could resist earthquake forces on up to four-storey buildings.
  • The researchers tested a full-scale building and a number of wall elements constructed with thermocol sandwiched between two layers of concrete at the National Seismic Test Facility (NSTF) of the Department of Earthquake Engineering, IIT Roorkee, developed under the Fund for Improvement of S&T Infrastructure (FIST) programme of Department of Science & Technology (DST), Government of India. Mr Adil Ahmad, the research Scholar who conducted the tests, evaluated the behaviour of the constructions under lateral forces, as earthquake causes a force predominantly in the lateral direction.
  • The investigation was supplemented with a detailed computer simulation of a realistic 4-storey building. Prof. Yogendra Singh, supervising the research, informed that the analysis shows that a four-storey building constructed with this technique is capable of resisting earthquake forces, even in the most seismic zone (V) of the country, without any additional structural support.
  • They have attributed this earthquake resistance capability to the fact that the EPS layer is sandwiched between two layers of concrete having reinforcement in the form of welded wire mesh.
  • The researchers said that the force being applied on a building during an earthquake arises due to the inertia effect and hence depends on the mass of the building. Thermocol resists earthquakes by reducing the mass of the building.
  • In this technique, the EPS core and the wire mesh reinforcement is produced in a factory. The building skeleton is first erected from the factory-made core and reinforcement panels, and then concrete is sprayed on the skeleton core. This technique does not require any shuttering and hence can be constructed very fast.
  • Besides resisting earthquakes, the use of expanded polystyrene core in concrete walls of a building can result in thermal comfort. The core provides the necessary insulation against the heat transfer between the building's interior and exterior environment. This can help in keeping the building interiors cool in hot environments and warm during cold conditions. India suffers a large variation in temperature in different parts of the country and during different seasons of the year. Therefore, thermal comfort is a crucial consideration along with structural safety.
  • The technology also has the potential of saving construction materials and energy, with an overall reduction in the carbon footprint of buildings. It replaces a large portion of concrete volume from the walls and floor/roof. This replacement of concrete with the extremely lightweight EPS not only reduces mass, thereby decreasing the earthquake force acting on a building but also diminishes the burden on the natural resources and energy required to produce the cement concrete.

Source: PIB


Pradhan Mantri Suryodaya Yojana

Recently, Prime Minister announced Pradhan Mantri Suryodaya Yojana under which 1 crore households will get rooftop solar power systems. India’s Status of Current Solar Capacity India currently stands at 4th place globally in solar power capacity. As per Ministry of New an

Foreign Contribution Regulation Act (FCRA)- NGO 

The Foreign Contribution Regulation Act, 2010 (FCRA) registration of two prominent non-governmental organisations (NGOs) — Centre for Policy Research (CPR) and World Vision India (WVI) have been cancelled this month. What is FCRA? Key provisions of FCRA, 2010 Key aspects Description

Voice clone-AI

Voice clone fraud has been on the rise in India. AI voice cloning – It is the process of creating a synthetic replica of a person’s voice through machine learning and speech synthesis technology.It is called as voice deepfakesor audio deepfakes. Objective – To achieve a high level of na

Science communication- how to promote

Steps taken by India to promote Science Communication Publications and Information Directorate (PID) - An organisation under Council of Science and Industrial Research (CSIR) established in 1951 for publishing and disseminating scientific information in India. National science magazines- The PI

Universal Basic Income (UBI)- Analysis

Universal Basic Income (UBI) can strengthen welfare architecture and unlock the nation’s latent demographic potential. UBI - It is an income support mechanism typically intended to reach all or a very large portion of the population regardless of their earnings or employment status. Objective- To provide enough to co

Toppers

Search By Date

Newsletter Subscription
SMS Alerts

Important Links