00819969

Component

https://doi.org/10.3141/1755-08

http://scholar.google.com...berg&publication_year=2001

Mechanistic empirical-based specifications, which focus on the mechanical properties of materials, facilitate quantitative evaluations of alternative construction practices and materials such as reclaimed materials. Thus, to represent these mechanical properties, quality-control and quality-assurance testing would be expected to include stiffness along with density measurements. In two case studies, a falling-weight deflectometer (FWD) was used during the construction of two major interchanges in Israel. FWD testing was found to be very useful in identifying local spots with poor performance, thus enabling execution of the required remedial actions. The two studies also indicated that, for a given feature, both a representative central deflection at the 95% reliability level and a coefficient of variability of measured deflections may serve as potential quality-control indicators. The possible use of the German light drop-weight (LDW) device for measuring the mechanical properties of the formation of flexible pavements was also examined. Based on the cost per test, rate of testing, and quality of the data, the German LDW can serve as a cost-effective testing device for quality control and assurance during subgrade and capping-layer compaction.

This paper appears in Transportation Research Record No. 1755, Geology and Properties of Earth Materials 2001.

English

p. 69-77

2001

Transportation Research Record

0309072166

Figures (8) ; Photos (1) ; References (19) ; Tables (1)

Case studies; Cost effectiveness; Deflection; Density; Falling weight deflectometers; Mechanical properties; Pavement layers; Quality assurance; Quality control; Reliability; Road construction; Stiffness

Light drop-weight device

Israel

Geotechnology; Highways; I42: Soil Mechanics

TRIS, TRB, ATRI

Nov 8 2001 12:00AM

• ADSORPTION AND DESORPTION CAPACITY OF TRICHLOROETHYLENE ON GLACIAL TILL WITH HIGH-PERCENT FINES
• AUTOMATED MEASUREMENT OF TOTAL SUCTION CHARACTERISTICS IN HIGH-SUCTION RANGE: APPLICATION TO ASSESSMENT OF SWELLING POTENTIAL
• DEVELOPMENT OF DATABASE FOR LOUISIANA HIGHWAY BRIDGE-SCOUR DATA
• ENVIRONMENTAL DETERIORATION MODEL FOR FLEXIBLE PAVEMENT DESIGN: AN ONTARIO EXAMPLE
• EVALUATING MOISTURE SENSORS AND MONITORING SEASONAL MOISTURE VARIATION IN LOW-VOLUME ROADS
• FORMAT FOR GEOTECHNICAL DATA EXCHANGE IN THE UNITED KINGDOM
• GEOGRAPHIC INFORMATION SYSTEM-BASED EVALUATION OF GEOTECHNICAL BOREHOLE LOG QUALITY
• IMPLEMENTATION OF MINIATURE CONE PENETROMETER IN ROADWAY DESIGN AND CONSTRUCTION
• INFLUENCE OF HIGHWAY RUNOFF CHEMISTRY, HYDROLOGY, AND RESIDENCE TIME ON NONEQUILIBRIUM PARTITIONING OF HEAVY METALS: IMPLICATIONS FOR TREATMENT AT THE HIGHWAY SHOULDER
• INTEGRATING SEISMIC AND DEFLECTION METHODS TO ESTIMATE PAVEMENT MODULI
• LONG-TERM STRENGTH AND DURABILITY OF HYDRATED FLY-ASH ROAD BASES
• PREDICTION OF WINTER ROUGHNESS BASED ON ANALYSIS OF SUBGRADE SOIL VARIABILITY
• PROTOTYPE TIRE-SHRED EMBANKMENT CONSTRUCTION
• REAL-TIME EVALUATION OF SITE CHARACTERIZATION TO DIRECT AND CONCLUDE EXPLORATION
• SHEAR STRENGTH OF LARGE-SIZE SHREDDED SCRAP TIRES
• USER QUERY INTERFACE FOR THE DEEP-FOUNDATIONS LOAD-TEST DATABASE
• WETTING-INDUCED SETTLEMENT OF COMPACTED-FILL EMBANKMENTS