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LTPP DATA ANALYSIS: FEASIBILITY OF USING FWD DEFLECTION DATA TO CHARACTERIZE PAVEMENT CONSTRUCTION QUALITY.
| 题名： | LTPP DATA ANALYSIS: FEASIBILITY OF USING FWD DEFLECTION DATA TO CHARACTERIZE PAVEMENT CONSTRUCTION QUALITY. |
| 作者： | Stubstad-RN |
| 关键词： | Deflection-; Falling-weight-deflectometers; Long-Term-Pavement-Performance-Program; Properties-of-materials; Quality-assurance; Quality-control; Road-construction |
| 摘要： | The objective of this research study was to determine whether the Falling Weight Deflectometer (FWD) can effectively be used to assist in the quality control/quality assurance (QC/QA) process during pavement construction. This report shows that the FWD data are of reasonable quality and certainly of sufficient quantity to be used with confidence to estimate material properties--mainly stiffnesses or moduli--and their variations at each layer interface during new or reconstructed pavement construction. The traditional test results, although not as extensive as FWD data, were also reasonable and appeared to cover most of the wide variety of pavement designs and construction locations represented by the Long Term Pavement Performance (LTPP) Specific Pavement Studies (SPS) database. Following an introductory chapter, Chapter 2 presents the use of specific pavement test parameters from DataPave and the National Information Management System database that can be used to characterize pavement construction quality. These include both the FWD deflection data, and analyses thereof, and traditional construction quality data categories. Chapter 3 covers the relationships between FWD-associated data and conventional QC/QA data types. Relationships between all of these data are developed, discussed and plotted. Chapter 4 consists of the conclusions and research recommendations. |
| 总页数： | NCHRP Web Document 52. 2002/10. pp76 (11 Ref.) |
| 报告类型： | 科技报告 |
相关文献
- LTPP (Long Term Pavement Performance) Data Analysis: Feasibility of Using FWD (Falling Weight Deflectometer) Deflection Data to Characterize Pavement Construction Quality.
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