D1 - Evaluate the environmental performance of modern materials and techniques used in the construction of substructures for low-rise domestic and commercial buildings, for two different tutor-specified scenarios Most people may not realise but concrete plays a vital part in our lives daily. It shapes and creates the built environment in which we are surrounded by, such as schools, bridges, roads, housing, hospitals, dams and so much mores. Concrete is the most used man made material in the world, averaging around 3 tonnes annually for each person. In comparison with other building materials such as wood, steel, plastic and aluminium, over twice as much concrete is used globally than any of these materials. It is the material choice of most purposes due to its strength, durability, thermal mass and its cost. Cement is notably the most important ingredient in the …show more content…
Steel itself can be used over and over again without losing any of its qualities, including strength. Steel is also the most recycled material on the planet with a survey taken in 2012 showed around 88% of steel being recycled. Steel offers: • Material efficiency – this results in less natural resources used, less transports, less emissions and less energy used • High recyclability – this results in less natural resources used, less waste and emissions used • Quality and durability • Dry and lean construction – this results in less health hazards, less waste, less energy used, less emissions produced and a better working environment Figure 15 – shows steels attributes Regardless of how you view them, concrete and steel are vital to the production industry, no matter how they perform for sustainable purposes, until an alternative comes around with roughly the same costs, durability and availability of these materials, then they are going to be around for many more years to
If the ancient Roman innovation of concrete, were to not have been significant, it would not have continued to be used across the globe. In fact, ancient Roman hydraulic cement-based concrete was so notable that modern day scientists are trying to, “replicate the exact formula for which ancient Roman concrete was made.” This is due to ancient Roman concrete being so sturdy and strong that aspects of it have lasted over 2000 years without deterioration. Without the innovation of Roman concrete, many of the modern world’s infrastructure would not be stable, causing havoc across the globe. Also, advancements in construction, health, and even safety areas would not be possible, as almost every piece of infrastructure, from sewerage and water pipes, to building and security walls, would not be able to remain as safe to use. This is because the modern world relies so heavily on concrete, with around five billion tonnes of concrete being used around the world each year,becoming the single most widely used material in the construction industry. In fact, around 76% of all first-world infrastructure is reinforced with concrete. Without this substance, much of the modern-world's infrastructure would not be as tall or sturdy as what it currently is, as it would simply deteriorate or break. Hydraulic cement-based concrete is certainly the most significant Roman
Not only people should recycle waste to protect the environment; they have to use the recycled products too, otherwise the recycling will not be worth the effort (Biswas et al., 2000). The myth that people belive in is that as long as the product is recycled, then it has lower quality than before it is recycled. However, it depends on the product itself if it is typical, so the product keeps its quality even after rcycling (Biswas et al., 2000).
Throughout the construction industry, technology plays a role to help ease the completion of a project to all of the parties involved. The amount of technology application in the industry supports the belief that technology has a positive impact on project productivity. One of the main materials used in the construction industry that surrounds us every day, in which we overlook, is concrete. Concrete is an art form, in which it takes time and talent in order for it to be used efficiently, to produce its high strength and longevity. However, the downfall of this material is that it is extremely costly and nearly impossible to form it to an aesthetically pleasing surface. In spite of this, what if I told you that there is hope? That the dream of a material made of concrete, producing the same qualities, can be formed to any shape, and used anywhere was a reality.
ement occupies approximately 50% of the mixed concrete volume and is responsible for physiomechanical properties of concrete. Cement production is essential to infrastructure and building construction, creating demands in very large quantities. Energy resources invested in the production process and resulting greenhouse gas emissions have become problematic. The cement production process has become among the world’s largest anthropogenic sources of carbon dioxide emissions, contributing to approximately 5% of global anthropogenic CO2 emissions, (WBCSD, 2009). Increased pressure is being placed on the industry to reduce CO2 emissions, owning to awareness regarding sustainability....
construction in the life of the material (Fig.1). Many “green” construction claims and strategies are now based on a ...
In addition to its more practical benefits noted earlier, concrete is also widely used because of the environmental benefits that can be enjoyed through its use as well. Since the ingredients and process for making concrete are so basic, there is very little impact to the environment in the form of waste, none of which can be considered especially dangerous or toxic. As noted before, concrete is inherently fire retardant. In order for wood, for example, to be made to be fire retardant, it requires the use of specific treatment methods and chemicals. These chemicals can have an adverse reaction on both the environment and even on the workers performing these actions. Furthermore, if disposed of incorrectly, the chemicals used can continue to harm the environment long after the building has been demolished. Another obvious advantage over the use of wood is that concrete use has no effect on
Concrete is one of the most widely used construction material in the world. The reason for this is because concrete is strong, easy to make and can be molded into various shapes and sizes. Besides that, concrete is cheap, affordable and is readily mix.
...e, as not only is our energy being conserved, but also transportation and extraction of raw materials will significantly decrease. Finally, employment opportunities become available, as recycling is a much more complex process, and therefore more jobs will be available when comparing it against employment related to waste and landfill.
Greer, D. (2004, September-October). Green builders get big help from deconstruction. In Business, 26(5), 20. Retrieved from http://www.jgpress.com/inbusiness/archives/_free/000648.html
are required and less energy is needed to make recycled plastic products than to make
"Green Building: Advantages & Disadvantages." Green Building: Advantages & Disadvantages. N.p., n.d. Web. 12 Nov. 2013. .
Buildings consume a variety of materials in their construction. Green design reduces the dependence on resource intensive products and materials. Today, there are an increasing number of products available made from efficient, earth-friendly, or recycled materials. In a green building, consideration is also given to the construction process itself. Materials that minimize waste or can be recycled, help contribute to an efficient and environmentally sensitive construction process.
Paying attention on the sectors which consume major portion of natural resources, construction can be put as number one in the world. Therefore, the need for effective construction waste management is growing in importance, with the increasing generation of construction waste and to its adverse impacts on the environment (Freitas & Magrini, 2017). Furthermore, construction activities consume a large quantity of materials and energy as well as generating unacceptable level of solid waste. Accordingly, energy- demanding manufactures materials such as steel, copper, glass, iron, synthetic materials and cement, construction is identified as the largest consumptions materials from the natural products. The construction industry consumes 25% of virgin
Recycling means to take out harmful and valuable commodities to be further used. It can help to save the environment and natural habitat. For example, if we could reuse papers this material that originally took from the natural world, it means that lesser resources are required to produce new products. Reach shows 10 litres of water is needed to make one piece of A4 paper; we can save around 26,500 litres of water and 17 trees if we recycled 1-ton paper. From the economic aspect, the most important benefit of recycling is that it can save energy. By using recycled materials, manufacturers can cut down the energy consumption of producing new products from raw
This process saves energy, and conserves resources by reducing the amount of renewable resources that would normally end up in a landfill or in an incinerator. These recycling plants “increase jobs in manufacturing while simultaneously increasing the Unite State’s competitiveness in industry. ”(Recycling | Reduce, Reuse, Recycle | US EPA.) There are also several long term benefits of recycling. For example, “collecting and processing secondary materials, manufacturing recy... ...