Term: Concrete mixer
**History of Concrete Mixers:**
– First concrete mixer developed in 1900 by T.L. Smith in Milwaukee
– Portable concrete mixer patented in 1904 by Richard Bodlaender
– Horse-drawn Mortar Mixer invention
– T.L. Smith Company’s large concrete mixers in the 1920s
– Roscoe Lee’s transit concrete mixer patent in 1934
**Types and Industrial Use of Concrete Mixers:**
– Twin-shaft mixers for high-intensity mixing
– Vertical axis mixers for precast and prestressed concrete
– Drum mixers for large volume production
– Various mixer styles with unique strengths and weaknesses
– Global use of mixers with varying popularity
**Concrete Mixing Transport Vehicles:**
– Specialized concrete transport trucks with interior turbine
– Drum mixers with spiral blades for mixing
– Federal weight regulations for ready mixed concrete trucks
– Rear discharge trucks with driver and chuteman
– Front discharge trucks with cab controls for chute movement
**Varieties of Concrete Mixing Equipment:**
– Concrete transport trucks for on-site mixing
– Concrete mixer trailers with smaller capacities
– Metered concrete trucks for precise amounts
– On-site and portable concrete mixers for small projects
– Self-loading concrete mixers for batching, mixing, and transport
**Safety, Components, and Benefits of Concrete Mixers:**
– Importance of proper operation for safety
– Types of concrete mixers and key components
– Benefits like consistent quality and cost savings
– Common applications in construction and DIY projects
– Maintenance tips including cleaning and lubrication
This article needs additional citations for verification. (March 2022) |
A concrete mixer (also cement mixer) is a device that homogeneously combines cement, aggregate (e.g. sand or gravel), and water to form concrete. A typical concrete mixer uses a revolving drum to mix the components. For smaller volume works, portable concrete mixers are often used so that the concrete can be made at the construction site, giving the workers ample time to use the concrete before it hardens. An alternative to a machine is mixing concrete by hand. This is usually done in a wheelbarrow; however, several companies have recently begun to sell modified tarps for this purpose.
The concrete mixer was invented by Columbus, Ohio industrialist Gebhardt Jaeger.