State Highway and Transportation Department
Concrete Plant Inspector's CheckList
Word Version (54 kb) | PDF Version (23 kb)
- Aggregates
- Stockpile foundation condition
- Aggregate stockpiled properly
- Handling of aggregates
- Cement and Fly Ash
- Has material been properly sampled?
- Are storage facilities adequate?
- Have proper certificates been received?
- Batching Equipment
- Bins and loading hopper checked for conditions and compliance with specifications
- All scales checked and calibrated
- Sensitivity of scales checked
- Water meter checked for accuracy
- Transit mix truck condition
- Revolution counter operation
- Mix Proportions
- Approved mix design received
- Size and batch determined
- Mix design proportions adjusted for desired air content
- Batch Quantities
- Dry weights per batch established for:
- Sacks or pounds of cement and fly ash
- of fine aggregate
- Pounds of coarse aggregate
- Total water required per batch
- Total yield (including air) per batch
- Quantity of air entraining agent required per batch
- Quantity of other additives required per batch
- Dry weights per batch established for:
- Moisture Content
- Percent total moisture for each aggregate
- Gallons of effective moisture per batch
- Gallons of water to be added at mixer
- Scale Weights per Batch
- Cement same as dry weight
- Fly ash weight
- Aggregate (dry weight plus total moisture in pounds per each aggregate)
- Scales balanced and counterbalances securely fastened
- Scale weights for each material set and checked
- Admixture measurement devices adjusted to measure correct amount
- Water meter adjusted
- Batching and Hauling
- Batch trucks adequate for size of batch
- No spillage or contamination while loading
- Empty batch trucks clean and free of foreign material
- Condition of agitating and non-agitating equipment for hauling Central Mix Concrete
- Pre-wet mixer at beginning of operations
- Set revolution counter to zero at beginning of operations
- Routine Duties
- Systematic check of scale settings during the day
- Regular daily checks on cement received and used
- Constant testing and checking moisture content of aggregates
- Daily report prepared and records kept up to date
- Fill out haul tickets