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Fields for table: AC_DENSITY_MEAS

Field NameCodesData TypeUnitsTest ProtocolDescription
STATE_CODE
STATE_PROVINCENUMBER(2)


Numerical code for state or province. U.S. codes are consistent with Federal Information Processing Standards.
NUCLEAR_GAUGE_MAKER

VARCHAR2(40)


Name of nuclear density gauge manufacturer.
GAUGE_MODEL_NUMBER

VARCHAR2(20)


Model number of the gauge.
GAUGE_ID_NUMBER

VARCHAR2(20)


Identification number of the nuclear density gauge.
GAUGE_COUNT_RATE

NUMBER(5)


Gauge count rate used for standardization.
RECORD_STATUS

VARCHAR2(1)


A code indicating the general quality of the data.
SHRP_ID

VARCHAR2(4)


Test section identification number assigned by LTPP program. Must be combined with STATE_CODE to be unique.
LAYER_NO

NUMBER(2)


Unique sequential number assigned to pavement layers, starting with layer 1 as the deepest layer (subgrade).
MEASURE_METHOD
MEASUREVARCHAR2(1)


Measurement method of density.
NO_MEASUREMENTS

NUMBER(2)


Number of measurements for density.
DENSITY_MEAN

NUMBER(4,1)
pcf

Average density measurement.
DENSITY_STD

NUMBER(4,1)
pcf

Standard deviation of density measurement.
DENSITY_MIN

NUMBER(4,1)
pcf

Minimum density measurement.
DENSITY_MAX

NUMBER(4,1)
pcf

Maximum density measurement.