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Environmental Impact of Concrete Production

November 28, 2013

Concrete has been the primary construction material in our towns and cities for well over 100 years now, with its roots dating back centuries. It’s synonymous with industry and manufacturing, but despite what you may think concrete production is actually far better for our environment than similar processes for other construction materials. This is reassuring to know, especially at a time when the compromise between green practices and industrial growth is so stretched. The resources needed to create concrete (mostly sand, water, aggregate and cement) are natural and abundant, and its use helps to sustain other, less plentiful materials, such as…

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A Guide to Concrete and Concrete Mixtures

September 15, 2013

Though a familiar part of our 21st century environment, concrete has been used for construction since ancient times. Roman forms of concrete, using hydrated lime and volcanic ash, were markedly superior to the predominantly sand and lime mixes used by other civilisations. Mixing The characteristic strength and density of concrete is related to the proportions of the three principal ingredients: water, cement and aggregate. The aggregate component is generally a type of gravel and/or small stone mixture which gives a rough or smooth texture to the finished concrete, reflecting the fine or coarse nature of the aggregate mixture. Water is generally…

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How do Concrete Pumps Work?

May 23, 2013

A concrete pump is a piece of apparatus designed to simplify the process of moving liquid concrete from one place to another. They have become a mainstay of any application requiring large volumes of concrete, and replace the old method of shifting concrete by manual labour alone. Broadly speaking, there are two main types of concrete pump: boom-mounted concrete pumps, and line concrete pumps. Boom-mounted concrete pumps are attached to a large computer controlled boom which is often mounted on a truck or other large vehicle. Concrete can then be pumped to a site specified by the computer. This type of…

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Screed: What is it Used For?

May 7, 2013

What is Screed? Effective mixing and application of screed is an important part of the concrete laying process, and understanding exactly how and why it’s used is the only way to create a long-lasting and stable surface. Fundamentally, screed is a levelling material, usually sand and cement, poured onto a structural concrete foundation layer and flattened to allow for a smooth surface for finishing materials. Wearing screeds are also available, where the screed serves as flooring itself with a visually desirable texture that has been used widely as an architectural feature. Usage The laying of screed was once a manual job,…

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