The MnDOT Concrete Transit Time Study is intended to evaluate the influence of concrete delivery time by measuring material properties from laboratory-batched concrete with different materials and admixtures. The laboratory test results will be used to develop a field testing and evaluation program. The field portion of the study will evaluate materials and admixture from ready mix plants in each region of the state. This will aid in the determination of whether there are any regional issues that need to be taken into account if the transit time specification is lengthened.
