Search results
Results from the WOW.Com Content Network
The environmental impact of concrete, its manufacture, and its applications, are complex, driven in part by direct impacts of construction and infrastructure, as well as by CO 2 emissions; between 4-8% of total global CO 2 emissions come from concrete. [1]
Degraded concrete and rusted, exposed reinforcement bar (rebar) on Welland River bridge of the Queen Elizabeth Way in Niagara Falls, Ontario. Concrete degradation may have many different causes. Concrete is mostly damaged by the corrosion of reinforcement bars due to the carbonatation of hardened cement paste or chloride attack under wet ...
Concrete can be recovered – crushed and reused as aggregate in new projects. [4] Recovering concrete reduces resource exploitation and associated transport costs, and reduces landfill. However, it has little impact on reducing greenhouse gas emissions as most emissions occur when cement is made.
National Cement Company is a producer of cement and concrete which are essential materials for the built environment and support economic growth of all kinds. National has cement plants at Lebec, California and Ragland, Alabama, cement distribution terminals in Georgia, South Carolina, and Tennessee, and over 60 ready-mix concrete plants across ...
The Concrete Sustainability Council is an industry organization and standards body focused on decreasing the environmental impact of cement, concrete, and aggregate. [1] [2] The group was originally launched by the World Business Council for Sustainable Development as the Concrete Sustainability Initiative in 2013.
Cement manufacture causes environmental impacts at all stages of the process. These include emissions of airborne pollution in the form of dust, gases, noise and vibration when operating machinery and during blasting in quarries, and damage to countryside from quarrying. Equipment to reduce dust emissions during quarrying and manufacture of ...
Learn about the differences between the cement and concrete including what they're used for, what they cost, which is more durable, and what they're made of.
For many years, lead cell batteries were destroyed there and the lead was extracted, leaving the untreated cases on site. An environmental assessment showed that the site was contaminated due to the presence of heavy metals, lead and hydrocarbon pollution. Cement based S/S was employed to successfully remediate 600 tonnes of contaminated soil. [10]