Summarizes state-of-the-art technology, evaluates test methods for in-place concrete density, and offers guidelines to avoid thermal effects in concrete pavement slab placements and packing-based aggregate proportioning of concrete mixtures. The report also contains descriptions of field evaluations of a variety of concrete mixes used for early opening of full depth concrete pavement repairs and bridge deck overlays. It describes the methodology and content of the HWYCON expert system (see Users Guide to the Highway Concrete (HWYCON) Expert System, SHRP-C-406) and audiovisual implementation packages for highway personnel dealing with materials testing and pavement and bridge rehabilitation.