Three reasons concrete doesn't live up to its environmental claims
Up to 8% of all global anthropogenic human-made emissions are due to just one material, cement. And our use of it is rising.
Aug 1, 2022
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Up to 8% of all global anthropogenic human-made emissions are due to just one material, cement. And our use of it is rising.
Aug 1, 2022
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After water, concrete is the most widely used substance on Earth. With applications from housing and industry to coastal defense and infrastructure, concrete and cement are at the cornerstone of life, quite literally.
Jul 19, 2022
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Concrete is the most widely used building material in the world. It can be used in many ways, can be produced locally and is very durable. Its environmental performance, on the other hand, is the subject of critical debate. ...
May 25, 2022
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The Automating Concrete Construction project (ACORN), which aims to change the way concrete is used in buildings to decarbonize construction, features in the RIBA Journal, published by the Royal Institute of British Architects, ...
Mar 30, 2022
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Large concrete structures need to be regularly tested for defects that may compromise their stability. While acoustic tests performed by certified inspectors are usually the inspection method of choice, these tests take longer ...
Mar 3, 2022
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Steel-reinforced concrete columns that support many of the world's bridges are designed to withstand earthquakes, but always require inspection and often repair once the shaking is over.
Jan 18, 2022
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The earliest known use of concrete is a floor that dates back to Galilee, circa 7000 BCE, still sound when unearthed in 2007. After thousands of years as the go-to building material, it might seem like science surely could ...
Jan 13, 2022
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Concrete is the world's most widely consumed material after water, and its production contributes to more than 7% of global CO2 emissions. Achieving global ambitions to limit warming to 1.5ºC will require significant change ...
Nov 22, 2021
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The National Fire Protection Association (NFPA) reports that there were 490,500 structure fires in the U.S. in 2020. However, people mostly struggles with the aftermath of the fire-damage. Structure fires caused $12.1 billion ...
Nov 15, 2021
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In modern society, the majority of our infrastructure (buildings, bridges, tunnels, etc.) is made of aging concrete. A recently developed cost-effective method of sustaining this infrastructure involves an external coating ...
Oct 15, 2021
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Concrete is a construction material composed of cement (commonly Portland cement) as well as other cementitious materials such as fly ash and slag cement, aggregate (generally a coarse aggregate such as gravel, limestone, or granite, plus a fine aggregate such as sand), water, and chemical admixtures. The word concrete comes from the Latin word "concretus" (meaning compact or condensed), the past participle of "concresco", from "com-" (together) and "cresco" (to grow).
Concrete solidifies and hardens after mixing with water and placement due to a chemical process known as hydration. The water reacts with the cement, which bonds the other components together, eventually creating a stone-like material. Concrete is used to make pavements, architectural structures, foundations, motorways/roads, bridges/overpasses, parking structures, brick/block walls and footings for gates, fences and poles.
Concrete is used more than any other man-made material in the world. As of 2006, about 7.5 cubic kilometres of concrete are made each year—more than one cubic metre for every person on Earth. Concrete powers a US $35-billion industry which employs more than two million workers in the United States alone.[citation needed] More than 55,000 miles (89,000 km) of highways in the United States are paved with this material. Reinforced concrete and prestressed concrete are the most widely used modern kinds of concrete functional extensions.
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