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原文传递 Recommended Resolutions to Selected Hot Mix Asphalt Related Issues.

题名：	Recommended Resolutions to Selected Hot Mix Asphalt Related Issues.
作者：	J. W. Button; A. Chowdhury; A. Bhasin;
关键词：	flexible pavements,aggregates,asphalt pavements/highway construction, hot mix paving mixtures, road materials, designs, pavement rutting, summary report/highway construction, hot mix paving mixtures, road materials, designs, pavement rutting, summary report
摘要：	Specific objectives of this project included: (1) Develop laboratory protocols for using the Superpave gyratory compactor (SGC) instead of the Texas gyratory compactor (TGC) (Tex-204-F) to design essentially all of the TxDOT dense-graded HMA paving mixtures. (2) Identify and validate laboratory test protocols for measuring rut susceptibility of HMA mixtures. (3) Identify the best available laboratory test protocol(s) for predicting moisture susceptibility of HMA paving mixtures. (4) Determine the effect of aggregate angularity and nominal maximum size of siliceous river gravel aggregates on performance of selected HMA surface pavement mixtures. That is, investigate whether it is better to use smaller nominal maximum aggregate size (NMAS) with higher coarse aggregate angularity (CAA) (i.e., more crushed faces) or larger NMAS with lower CAA. (5) Measure as-built properties of test pavements and populate a database to be used in a future project for evaluating relationships between pavement performance and measured properties during construction. (6) Obtain and measure certain properties of several plant-produced mixes for production verification and lab-compacted plant mixes to develop a mixture database for use in evaluating the forthcoming mechanistic-empirical pavement design guide. All of the activities and recommendations from this comprehensive research project cannot be discussed in this summary report. / Title Note: Project summary rept. / Supplementary Notes: See also PB2005-106850, PB2004-104600, and PB2005-106851. Sponsored by Texas Dept. of Transportation, Austin. and Federal Highway Administration, Austin, TX. Texas Div. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. / NTIS Prices: PC A01/MF A01 / Corporate Author Code: 015063000 / Classifivation: Unclassified report
报告类型：	科技报告