Asphalt plant is equipment that is design to produce hot mix asphalt (HMA).
The asphalt plants or asphalt mixing plant is one plant that is used for mixing of dry aggregate, cement, lime and bitumen for homogeneous mixture at the required temperature. And it is widely used to the construction of national highway, state highway, urban & rural roads, city road etc.. Mix Asphalt is combination of correct proportions of aggregates, sand, filler (like stone dust or quarry dust), heated and coated with bitumen.
The purpose or function of an asphalt mix plant is to mix aggregates and binder to produce a hot mixed homogeneous asphalt paving mixture. The aggregate can be a single material or can be a combination of coarse and fine particles with or without mineral filler. Various additives, either liquid, solid, or powdered materials, can also be incorporated into the mixture along with bitumen.
Asphalt Plant Supervisor responsibilities involve much more than asphalt mix production. You should know how to operate either a batch asphalt plant, continuous - flow asphalt plant, or drum-mix asphalt plant. You will also need to know how to identify the different types and grades of bitumen and their grading criteria. As the supervisor you will need to have a working knowledge of federal and local policies regarding plant operations and asphalt production. You will also be responsible for the training of supporting staff / crewmembers assigned to plant operations. A training plan should be developed to ensure all personnel attain the proper qualifications. Most training is received through on-the-job training; therefore, OJT should be thorough and emphasize the use of the manufacturers' operator and maintenance manuals.
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