Environmental Guidelines in Concrete Mixing Operations
The concrete batching process involves a series of operations, which can pose an environmental risk in not well managed. There is therefore the need for concrete batching plant to look into their manufacturing system and work on avoiding environmental pollution and ecosystem imbalances. Similarly, concrete mixer manufactures should tailor the equipments to run in a system that avoids risk to the environment.
Environmental guidelines are designed to achieve certain objectives such as;
- Identification of impacts to the environment
- Development of objectives towards certain management perspectives
- Implement measures to avoid degradation
- Accomplishment of environmental objectives as required by the state
The chemistry of concrete preparation is complex involving making a mixture of calcium, alumina, iron oxide, sulfur dioxide, magnesia, and silica. These materials are combined with fly ash, aggregates (such as gravel and sand) and other admixtures. These admixtures are compounds used in sand to modify the properties of the cement. These components are mixed in presence of water for the chemical combination to occur.
Concrete mixing equipments such as the self-loading concrete mixers are used to combine the cement sand and aggregate to make a good concrete mix. In the mixing process, the mixture is introduced into a rotating hopper and water is introduced. Mixing is done through continuous rotation.
The basis of environmental concerns in concrete batching plants is targeted to plants having a throughput of over 100 tons of concrete in a week as they may have significant impact to environment. Some waste products include dust emissions, waste oils and alkaline fluids or sludge. Concern to the nearby environment such as streams and natural vegetation is very important.
Various environmental regulations have focused on implementing waste minimization procedures as a way of reducing impact of concrete batching processes to the environment. This process is targeted at improving the manufacturing process through better practices as well as pollution control. The pillars of the regulation are therefore reduction, recycling/reclamation, treatment and proper disposal methods. High priority is also given to avoidance rather than management.
Parts of management procedures have included undertaking of environmental audits to analyze the existing state of environment and potential of harm to the environment. Regulations have also focused on manufacturing of equipments that have reduced emissions while focusing on efficiency of manufacturing. Concrete mixer machine manufacturer in India has developed efficient and environmental conscious concrete mixer products able to comply with the laws of reduced pollution and efficiency for your batching process.
The external environment is exposed to certain forms of pollution during the concrete batching process. This contamination could result from dust, waste lubricants and disposal of process waste products, which could be acidic or alkaline. Environmental regulations have focused on reduction and prevention of wastes as an important strategy in elimination of contamination. Measures taken in management of this process is undertaking of environmental audits, reduction of effluents, waste treatments and adequate disposal procedures.
Production of equipments that have reduced emissions to the environment is also an important and effective strategy in minimizing environmental contamination.