Competition refresher

Competition refresher

Competition refresher published this article page no 21 earth is an abundant resource. what can be more environment friendly than the very dirt beneath your feet?  you can choose from earthen materials kind to the environment such as cob, adobe and rammed earth.  lightweight concrete has been used for building for the last 50 years in the united states.  its strength is not as great as the usual concrete used for construction, but you can rest assured that it will weather the elements just as well.  advantages to using this building material is that can be used for insulation, it has great fire resistant properties, it will require a smaller foundation and there isnt as great a need for reinforcement of structural steel. this impacts the environment in a positive way.  manufactured building materials appeal to those who have concern for the environment but dont want to live in a home made of dirt, tree parts, straw, etc.  usually a home made with this type of material once built will make an excellent home that is energy efficient with thought to the environment covers upsc & all competitive exams - subscribe.  

Competition refresher