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Effect of Aggregates on Pavement Performance

Effect of Aggregates on Pavement Performance
Author: B. Frank McCullough
Publisher:
Total Pages: 6
Release: 1995
Genre: Aggregates (Building materials)
ISBN:

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In Texas, rigid (or portland cement concrete) pavements and flexible (or asphaltic concrete) pavements are most often constructed using crushed limestone and/or siliceous river gravel as the coarse aggregate. Project 1244, sponsored by the Texas Department of Transportation (TxDOT), evaluated the performance of rigid pavements and flexible pavements made with siliceous river gravel and with crushed limestone as coarse aggregates, in order to develop specifications that obtain equal and adequate performance from the different aggregates.


Effects of Aggregates and Mineral Fillers on Asphalt Mixture Performance

Effects of Aggregates and Mineral Fillers on Asphalt Mixture Performance
Author: Richard C. Meininger
Publisher: ASTM International
Total Pages: 355
Release: 1992
Genre: Aggregates (Building materials)
ISBN: 0803114680

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Resulting from the Symposium on [title], held in December 1991, at the ASTM Standardization Meetings in San Diego, this volume comprises 19 papers in four sections: aggregates; mineral fillers; mixture evaluation; and fatigue, modeling, and theoretical. Member price, $52. Annotation copyright Book N


Preliminary Research Findings on the Effect of Coarse Aggregate on the Performance of Portland Cement Concrete Paving

Preliminary Research Findings on the Effect of Coarse Aggregate on the Performance of Portland Cement Concrete Paving
Author: B. Frank McCullough
Publisher:
Total Pages: 118
Release: 1993
Genre: Aggregates (Building materials)
ISBN:

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This report focuses on aggregates used in the construction of continuously reinforced concrete pavements (CRCP). Specific chapters address (1) past research regarding aggregates used in CRCP, (2) field and laboratory investigations of CRCP, and (3) CRCP behavior and distress. The report reviews such topics as spalling and punchout distresses in continuously reinforced and jointed pavements, aggregate shape characterization using fractals, and the determination of sawcut depth using fractal analysis. Some of these activities relate directly to improving pavement performance, regardless of aggregate type used for construction.


Effects of Aggregate Blends on the Properties of Portland Cement Concrete Pavements

Effects of Aggregate Blends on the Properties of Portland Cement Concrete Pavements
Author: Terry Dossey
Publisher:
Total Pages: 148
Release: 1994
Genre: Aggregates (Building materials)
ISBN:

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Although recent studies have shown that pavement performance does vary by aggregate type, current portland cement concrete pavement design tools do not fully incorporate aggregate properties into the design process. Aggregate characteristics shown to affect pavement performance include strength, thermal properties, and shrinkage properties. The objective of this study was to investigate the material properties of crushed limestone and siliceous river gravel, two aggregates predominantly used in current pavement construction, and to determine a relationship between the properties of single-aggregate concrete and concrete made with predetermined blends of limestone and gravel. This report continues the work of Project 422/1244, which was limited to single-aggregate concretes. Additional models were developed to predict concrete properties of blended aggregate concrete for use in the design tools, CRCP and JRCP, described in previous 422/1244 reports. A computer program, CHEM2, was developed, which allows the pavement designer to estimate the material properties of concrete from an inexpensive chemical test.