Whois & Analysis for nrhamm.com

Asphalt concrete (commonly called asphalt, blacktop, or pavement in North America, and tarmac or bitumen macadam in the United Kingdom and the Republic of Ireland) is a composite material commonly used to surface roads, parking lots, airports, as well as the core of embankment dams.

It consists of mineral aggregate bound together with asphalt, laid in layers, and compacted.

The process was refined and enhanced by Belgian inventor and U.S. immigrant Edward de Smedt.

Construction aggregate, or simply "aggregate", is a broad category of coarse particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates.

Aggregates are the most mined materials in the world.

Aggregates are a component of composite materials such as concrete and asphalt concrete; the aggregate serves as reinforcement to add strength to the overall composite material.

Due to the relatively high hydraulic conductivity value as compared to most soils, aggregates are widely used in drainage applications such as foundation and French drains, septic drain fields, retaining wall drains, and road side edge drains.

Aggregates are also used as base material under foundations, roads, and railroads.

In other words, aggregates are used as a stable foundation or road/rail base with predictable, uniform properties (e.g. to help prevent differential settling under the road or building), or as a low-cost extender that binds with more expensive cement or asphalt to form concrete.

A road is a thoroughfare, route, or way on land between two places that has been paved or otherwise improved to allow travel by foot or some form of , including a motor vehicle, cart, bicycle, or horse.

Hamm AG is a German worldwide manufacturer and marketer of road rollers based in Tirschenreuth, Germany.

It is a subsidiary of Wirtgen Group.

Construction waste consists of unwanted material produced directly or incidentally by the construction or industries.

This includes building materials such as insulation, nails, electrical wiring, shingle, and roofing as well as waste originating from site preparation such as dredging materials, tree stumps, and rubble.

Construction waste may contain lead, asbestos, or other hazardous substances.