United States Department of Transportation
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Edition:Final Report, Period: 10/1/2018 – 12/31/19
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Abstract:Due to the increasing budget constraints and decreasing time in pavement construction, there has been renewed interest in exploring the application of cost-effective and rapid pavement construction techniques. Roller-compacted concrete (RCC) is a stiff mixture of aggregate, cementitious materials, and water, that is compacted by vibratory rollers [ACI 325, 1995]. Compacted concrete pavement (CCP) is an advanced form of RCC. CCP is comprised of similar proportions as that of RCC; however, it utilizes an admixture that enables better finishing and durable surface texture. The major difference in construction is that CCP has a longer “fresh” or “green” period and requires little or no rolling that makes the riding surface more uniform and consistent. The use of CCP technology is supposed to secure smooth texture during paving. Past research undertaken at Missouri University of Science and Technology (Missouri S&T) in collaboration with the Missouri Department of Transportation (MoDOT) for the investigating of in-situ properties of RCC mixtures demonstrated prospective application in pavement construction with acceptable performance [Khayat and Libre, 2014]. However, limited experience exists with CCP. This project investigated the performance of CCP designed with special design features and durability of surface texture that can reduce construction cost and secure safe and durable surface texture. Their fresh and hardened performance were evaluated, and pavement quality after construction was monitored periodically.
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