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Aggregate Mining
Construction aggregate, or simply aggregate, is a broad category of coarse- to medium-grained particulate material used in construction. Traditionally, it includes natural materials such as sand, gravel, crushed stone. As with other types of aggregates, it is a component of composite materials, particularly concrete and asphalt. Aggregates are the most mined materials in the world,[1][2] being a significant part of 6 billion tons of concrete produced per year.[3]
Aggregate serves as reinforcement to add strength to the resulting material. Due to the relatively high hydraulic conductivity as compared to most soil types, aggregates are widely used in drainage applications such as foundation and French drains, septic drain fields, retaining wall drains, and roadside edge drains. Aggregates are also used as base material under building foundations, roads, and railroads (aggregate base). It has predictable, uniform properties, preventing differential settling under the road or building.
Aggregates are also used as a low-cost extender that binds with more expensive cement or asphalt to form concrete. Although most kinds of aggregate require a form of binding agent, there are types of self-binding aggregate which require no form of binding agent.[4] More recently, recycled concrete and geosynthetic materials have also been used as aggregates.
​Doncaster is a charming town in South Yorkshire, England, that offers a mix of history, culture, and entertainment. You can explore the impressive Norman castle of Conisbrough, the elegant Regency architecture of the Mansion House, and the fascinating railway and horse racing heritage of the town. Doncaster is also home to one of the largest and most varied markets in the country, where you can find everything from fresh produce to antiques. Whether you are looking for a relaxing stroll, a lively night out, or a family-friendly adventure, Doncaster has something for everyone. Don't forget to visit the friendly ambassadors at the tourist information centre for more tips and advice.
