The key to creating concrete that will last for a significant period of time and that will remain strong despite being exposed to natural elements is the type of aggregate that is added to the concrete mixture before it is poured.
An aggregate plant operator oversees the manufacturing of aggregate and ensures that it meets the standards necessary to be used in the construction industry. There are many types of concrete aggregate ranging from very fine to chunky and the type used for a particular project is determined by the specific project the climate where the concrete will be used and the desired look of the finished product. It is essential that aggregate is processed in the aggregate plant properly so that it functions properly and enhances the strength of the concrete.
According to Wisegeek.com "aggregate must be clean and free of chemicals clays and other materials." The plant operator ensures that all of these standards are met and the product(s) leaving the plant are not "weak." The result of adding weak aggregate to concrete can cause it to crack or crumble when it sets. Besides ensuring that the aggregate being produced is of top quality another responsibility of an aggregate plant operator is ensuring that the plant is adhering to all safety precautions.
Because of the dangers of working in a plant the operator must inspect the plant's equipment to make sure it is in excellent working order and they must also demand that the other plant workers are following all safety protocols. A high level of knowledge of different types of aggregate as well as plant equipment (fork lifts cranes trucks crushers etc) is a requirement for this job. A high school diploma is required for aggregate plant operators in addition to skills learned on the job. The average yearly salary for an aggregate plant operator is $44000 per year.