00743109

Component

https://doi.org/10.3141/1575-14

http://scholar.google.com...niel&publication_year=1997

The feasibility of seismic methods for determining the quality and thickness of portland cement concrete layers was recently studied. The study consisted of performing nondestructive laboratory seismic tests on cylinders that were laboratory-cured for 2 to 90 days. The cylinders were then subjected to appropriate strength tests (such as compressive and splitting tensile). Reasonably high correlations were found between static modulus, compressive strength, or tensile strength and seismic modulus. Seismic moduli were also found to be repeatable, as the coefficients of variation for different lots were generally less than 2%. Similar tests were also performed on cores retrieved from a site constructed with similar concrete. Before coring the slabs, nondestructive seismic tests were also performed on the concrete. Seismic moduli from laboratory and field tests were close and repeatable. The coefficients of variation for the seismic tests were generally less than 3% and 4% for the laboratory and field tests, respectively. The curing patterns observed in both the field and the laboratory were very different. Regardless of the methodology used, the correlations based on the laboratory specimens appear not to be representative of the field behavior. A focus on the use of nondestructive field methods for quality control/quality assurance may be necessary.

This paper appears in Transportation Research Record No. 1575, Construction: Flexible Pavements, Bridges, Quality, and Management.

English

p. 102-111

1997

Transportation Research Record

0301061601

Figures (8) ; Photos (1) ; References (6) ; Tables (1)

Compression tests; Concrete pavements; Core samples; Earthquake resistant design; Field tests; Laboratory tests; Modulus of elasticity; Nondestructive tests; Pavements; Paving; Quality assurance; Quality control; Tension tests; Thickness

Pavement thickness; Seismic tests; Splitting tensile test

Construction; Highways; Materials; Pavements; I32: Concrete; I52: Construction of Pavements and Surfacings

TRIS, TRB, ATRI

Nov 13 1997 12:00AM

• APPLICABILITY OF NEW FLEXIBLE PAVEMENT SMOOTHNESS SPECIFICATION FOR ASPHALT OVERLAYS
• CONSTRUCTABILITY: A QUALITY IMPROVEMENT APPROACH TO TRANSPORTATION PROJECTS
• DEVELOPING QC/QA SPECIFICATIONS FOR HOT MIX ASPHALT CONCRETE IN ILLINOIS
• DEVELOPMENT OF PERFORMANCE-RELATED SPECIFICATIONS FOR HOT-MIX ASPHALT PAVEMENTS THROUGH WESTRACK
• FINITE-ELEMENT MODELING OF RED MAPLE GLUED-LAMINATED T-BEAMS AND BRIDGE BEHAVIOR
• GEOGRAPHIC INFORMATION SYSTEMS AS A SUPPORT TOOL IN CONSTRUCTION COST ESTIMATING IN STATE DOTS
• GEOGRAPHIC INFORMATION SYSTEMS FOR TRACKING BRIDGE COMPONENT INSPECTION AND REPAIRS
• IMPROVING ASPHALT PAVING PRODUCTIVITY
• IMPROVING CONCEPTUAL ESTIMATING METHODS USING HISTORICAL COST DATA
• INVESTIGATION OF CRITICAL QUALITY ASSURANCE PARAMETER VARIATIONS FOR CONCRETE
• LABORATORY TESTING OF STRESS-LAMINATED WOOD DECKS ON STEEL BEAMS
• PERFORMANCE FACTORS AND QUALITY CONTROL/QUALITY ASSURANCE FOR POROUS PAVEMENTS
• PERFORMANCE MEASURES FOR CONSTRUCTION ADMINISTRATION
• QUANTIFYING THE EFFECT OF PAVEMENT PERFORMANCE CHARACTERISTICS USING PARTIAL DERIVATIVES
• ROBOCRANE CONSTRUCTION OF BRIDGES
• TRAFFIC DENSIFICATION OF ASPHALT CONCRETE PAVEMENTS
• USING GROUND-PENETRATING RADAR AND DIELECTRIC PROBE MEASUREMENTS IN PAVEMENT DENSITY QUALITY CONTROL