Water Reducing Admixtures in PCCP Mixes.

摘要

The purpose of this investigation was to determine the potential benefits and cost savings of adding a Type A water reducer and lowering the cement content in MoDOT's PCCP mixes. As result of adding a water reducer to PCC paving mixes, it is proposed that the cement content can be decreased along with a reduction of mixing water. It is also proposed that adding a water reducer will promote complete hydration of the cement particles resulting an improved hardened concrete product in terms of strength, durability, and performance. This research investigation was a two-part study that included both laboratory and field results of PCCP mixes containing a Type A water reducer with cement reductions ('water reducer mixes') and standard PCCP mixes ('control mixes').