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Subgrade moisture variations interim report VI Evaluation of collected data 1966-1967
(1968-5)
Data collected at field test sites 1-30 during the period June, 1966 - August, 1967 are evaluated, relating measured subgrade moisture changes to soil, climate, and pavement conditions. Relevant data were coded on IBM cards ...
Subgrade moisture variations interim report III Preliminary standardization and calibration procedure for nuclear depth
(1967-5)
A preliminary procedure for standardization/calibration of nuclear depth backscatter moisture and density equipment is described# After a short discussion of theoretical considerations in nuclear measurement of moisture ...
Subgrade moisture variations interim report IV Suggested nuclear depth gage calibration procedures
(1968-1)
An experimental procedure for calibration of nuclear depth moisture and density gages is described. Calibration of the gages was accomplished utilizing laboratory standards constructed of native Oklahoma soils. The soil ...
Subgrade moisture variations interim report VII Subgrade temperature measurement
(1969-6)
Measured moisture conditions at several existing field research sites could not be related to precipitation, and were thought to be temperature-dependent. Accordingly, subsurface thermistor probes were installed at six ...
Statistical quality control of Portland cement concrete pavements
(1968-6)
The scope of this investigation was to study statistically the process of preparing concrete for Portland cement concrete pavements and to compare the data with the specifications in use. It encompassed the measurement of ...
Splices in tensile reinforcing bars
(1965-8)
The purpose of this project was to provide information on the relative merits of the various methods of connecting tensile reinforci ng bars in reinforced concrete construction. This project consisted of two parts. In Part ...
Subgrade moisture variations interim report V Data Summary 1966-1967
(1968-4)
All data collected at the first 30 field test sites during the period June 1966-August 1967 are presented. Procedures for data collection, reduction, and display are described and discussed but no evaluation or correlation ...