Ready-mix - Ready Mixed Concrete
Napa Valley, San Francisco North Bay, Ca. USA

 according to a set recipe, and then delivered to a worksite, often by truck. This results in a precise mixture, allowing specialty concrete mixtures to be developed and implemented on construction sites. The first ready-mix factory was built in the 1930s, but the industry did not begin to expand significantly until the 1960s, and it has continued to grow since then.

Ready-mix concrete is sometimes preferred over on-site concrete mixing because of the precision of the mixture and reduced worksite confusion. However, using a pre-determined concrete mixture reduces flexibility, both in the supply chain and in the actual components of the concrete.

The leading ready-mix concrete supplier worldwide is the Mexican concrete and cement company Cemex, and their main competitor is France-based Lafarge. Ready Mixed Concrete, or RMC as it is popularly called, refers to concrete that is specifically manufactured for delivery to the customer's construction site in a freshly mixed and plastic or unhardened state. Concrete itself is a mixture of Portland cement, water and aggregates comprising sand and gravel or crushed stone.

Also See:

Concrete Pumping

Concrete Contractors

Foundation Contractors

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