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
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
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....
Recycling is one of the easiest ways to save energy for all the living things on Earth. Recycling save energy because using recyclable items that are not recycled can take a lot of energy. Recycling often saves energy because the products being recycled usually require much less processing to turn them into usable materials. Sometimes recycling can also save energy for goods which is
Many people believe that we should not recycle anymore, but this is not the case. We, the people of the world, need to continue to recycle because we do not want our children to grow up in a world where there are no certain species of animals due to recycling failures. We also do not want our children to grow up thinking that it is okay that they throw their garbage on the ground, and not have to pick it up. We need to teach our children that they need to take care of the earth that they are living on, because they only get one. Recycling is one of the most beneficial environmental issues that we have here on this earth. Recycling saves energy, limits pollution and supports several environmental factors of the economy. “In 2003, the savings from recycling 54 billion aluminum cans exceeded the energy equivalent of 15 million barrels of crude oil- or the amount of gas the U.S. uses in one day,” according to the U.S. Environmental Protection Agency. The EPA estimates that 200 million gallons of used oil are not disposed of properly, and if we were to dispose the oil properly then we could keep the oil from polluting the ground and the fresh water source. According to E. Takatori, “… While on-going societal regulation treats material recycling as the dominant cycle, the properties of recycled plastic remain the most port
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
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
Concrete is one of the world’s most popular construction materials. Some six billion tonnes of concrete is produced each year in the world, making it approximately one ton of concrete for every human being per year (Fardis, 2012, p.116). However, the lifecycle of concrete does not make it the most sustainable building material at the moment. Because of limited natural resources, concerns over green house gases, and landfill problems, concrete production is being cut-back, or at least cannot be increased to keep up with population increase. In this essay, I will look at what makes concrete an unsustainable material and possible solutions to make concrete a more sustainable material.
Concrete is Artificial Stone obtained by mixing cement, sand and aggregates with water. Fresh concrete can be molded into almost any shape which is an inherent advantage over other materials.
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.
Think about the commonly found items in your household: That small pair of skinny jeans left collecting wardrobe dust for the last 3 years, in the hope and motivation that one day you will fit back into them; An unopened – and also unwanted – Christmas present that you felt you have been obliged to keep for so long as your grandma asks you about it when she frequently visits; it may even be as simple as the newspaper you buy every Sunday! These are only a few examples of common items that are found in millions of households which have the ability to be recycled. By recycling even the smallest amount, many benef...
are required and less energy is needed to make recycled plastic products than to make
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