National Academy of Sciences | 150 Year Anniversary

Questions? Call 800-624-6242

| Items in cart [0]

The National Academies Press

Rights & Permissions

topleft topright

NCHRP Synthesis 381: Falling Weight Deflectometer Usage (2008)
National Cooperative Highway Research Program Synthesis Program (NCHRPSYN)

Citation Manager

Alavi, Sirous, Tavares, Michael P, LeCates, Jeffrey F, Transportation Research Board. "Part 2: FWD Equipment Types." NCHRP Synthesis 381: Falling Weight Deflectometer Usage. Washington, DC: The National Academies Press, 2008.

Please select a format:

BibTeX EndNote RefMan


Page
69
bottomleft bottomright
Page
69
Front Matter (R1-R10)
Summary (1-2)
Purpose (3-3)
Scope (4-4)
Definitions (5-6)
Falling Weight Deflectometer Types and Configurations (7-7)
Falling Weight Deflectometer Manufacturers (8-9)
Maintenance Practices (10-11)
Calibration Procedures (12-12)
Calibration Requirements (13-13)
Calibration Centers (14-14)
Data Collection Guidelines (15-19)
Data Storage (20-20)
Data Analysis Methods (21-21)
Data Analysis Software (22-22)
Analysis Output File Types (23-23)
Qualifications (24-24)
Additional Training Opportunities (25-26)
Outsourcing Requirements (27-28)
Case 2. Pavement Rehabilitation and Overlay (29-29)
Case 4. Pavement Management Systems (30-30)
Case 7. Spring Load Restrictions (31-31)
Case 11. Project Acceptance and Evaluation (32-32)
Case 12. Conversion of Data from Other Nondestructive Testing Devices (33-33)
Case 13. International Practices (34-34)
Portable Falling Weight Deflectometer (35-35)
Mechanistic-Empirical Pavement Design (36-36)
CHAPTER TEN - Conclusions (37-38)
References (39-42)
Bibliography (43-43)
Abbreviations (44-44)
APPENDIX A - Survey Questionnaire (45-67)
Part 1: Background Information (68-68)
Part 2: FWD Equipment Types (69-69)
Part 3: FWD Equipment Maintenance (70-73)
Part 4: FWD Equipment Calibration (74-79)
Part 5: GeneraL FWD Testing Procedures (80-83)
Part 6: FWD Field Testing - Flexible Pavements (84-92)
Part 7: FWD Field Testing - Rigid Pavements (93-102)
Part 8: FWD Computers (103-104)
Part 9: Data Analysis (105-107)
Part 10: Data Management and Storage (108-109)
Part 11: Personnel Training (110-115)
Part 12: FWD Program Administration - Part 1 of 2 (116-117)
Part 13: FWD Program Administration - Part 2 of 2 (118-126)

Below are the first 10 and last 10 pages of uncorrected machine-read text (when available) of this chapter, followed by the top 30 algorithmically extracted key phrases from the chapter as a whole.
Intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text on the opening pages of each chapter. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.

Do not use for reproduction, copying, pasting, or reading; exclusively for search engines.

OCR for page 69
69 TABLE B1 (continued) Agency/Organization Reporting Respondent's Title South Dakota Department of Transportation Engineering Supervisor South Carolina Department of Transportation State Pavement Design Engineer Tennessee Department of Transportation CE Manager II Texas Department of Transportation Pavement Engineering Specialist Utah Department of Transportation Pavement Management Engineer Vermont Agency of Transportation Transportation Tech IV Virginia Department of Transportation NDT Manager Washington State Department of Transportation Engineer 4 West Virginia Department of Transportation HE4 Wisconsin Department of Transportation Engineering Specialist Dynatest Consulting, Inc. Marketing Manager Note: CE = Civil Engineer; E/PS = Engineering/Physical Science; HE = Highway Engineer; PE = Project Engineer; TE = Transportation Engineer; EIT = Engineer-in-Training. Part 2: FWD Equipment Types Questions 2­6: How many FWDs does your agency use? How old are they? TABLE B2 Survey questions 2­6: "How many FWDs does your agency use? How old are they?" Quantity of FWDs Ages of FWDs FWD Manufacturer in Service (total) (years, average) Dynatest 61 14.33 Foundation Mechanics 15 5.71 KUAB 6 13.50 Carl Bro 0 Not applicable Other 0 Not applicable Total 82 11.18 FIGURE B1 Survey response to Questions 2-6: "How many FWDs does your agency use? How old are they?"