If you are Considering using an AccuMix plant on your project, please familiarize yourself with the following requirement. Understanding these requirements is in your best interest and will ensure the smoothest possible project.
Thorough consideration should be given to selection of the plant site. Considerations include efficient path for trucks to load from the front of the plant, room for ramp or conveyor to load plant, proximity to stockpile, available corridor for product tankers and fuel truck on side of plant, and routing of the incoming water line.
In order to maintain accuracy in the plants metering system and to avoid damage to the plant, it is crucial that the chosen plant site meets certain standards and is properly prepared.
The plant site must be an accessible compacted area at least 16’x43’ in size, leveled to within ± 1”, and capable of supporting 325,000 pounds without settling. This weight will be distributed through eight support legs exerting 20,000 pounds per square foot. The site must have sufficient drainage to keep water from accumulating on it. Special consideration should be given to ensuring the incoming water line is completely free of leaks. If the optional auxilary silo is used an addition 32'x16' area meeting the same criteria must be prepared. Additional area in front of the plant and silo will also have to be relatively level in order for the tractor to deliver it (see diag. below).
Additionally contractor may be asked to supply:
- Plant Laborer
- Loader and Operator
- Fuel for plant (approx. 8 gal/hr)
- Tandem dump trucks and platform scale for calibration
- Trucks or other means of transporting mixed material from the plant
- Mix design and all required testing
- Specified materials for mix (aggregates, cement, water, etc.)
- Any required air quality permits or other regulatory requirements
- Local, state, and federal taxes
- Any personnel required to satisfy local labor agreements
If the customer is to supply a laborer to assist the plant operator, that person will be at the plant at all times when the operator is on site. This should be the same person throughout the project as they will need to be trained in plant activities and safety procedures. Additional assistance may be required intermittently during setup and teardown, also extra assistance during daily pugmill cleanout will speed up the process.
Loader and Operator
If the customer is to supply a loader operator, this operator must be competent on the machine, and also be the same person throughout the project, as they will have to be trained in specific procedures for loading the plant. This operator will need to build a ramp to the agg bin approximately 5’ tall 12’ wide and 25’ long . The exact size will depend on size of loader. The top of the ramp must be flat at least the length of the loader so the operator can properly see the agg bin and so when the brakes are applied before dumping, that force will not move the plant.
Aggregate fed to the plant must not contain any trash, vegetation, sharp objects, metal or any material larger than 2”. If it is native soil, it will almost certainly have to be screened. If material is pre screened extra care should be taken in ensuring the screened pile is kept separate from unscreened and reject material. If anything larger than 3” enters the pugmill, serious damage may occur to the plant, causing repair and downtime expenses which will be the responsibility of the contractor. If large materials continue to enter the pugmill, mixing will be ceased until the source can be determined and rectified. Please contact us if you need suggestions on how to prepare the material and if it needs to be screened.