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Fields for table: RHB_PMA_CONSTRUCTION

Field NameCodesData TypeUnitsTest ProtocolDescription
SHRP_ID

VARCHAR2(4)


Test section identification number assigned by LTPP program. Must be combined with STATE_CODE to be unique.
ASPHALT_PLANT_TYPE
PLANT_TYPENUMBER(1)


Code indicating type of asphalt plant that produced the concrete mixture.
ASPHALT_PLANT_OTHER

VARCHAR2(40)


Type of asphalt plant if other than those specified.
AERATED
YES_NONUMBER(1)


Code indicating if mixture was aerated.
PERIOD_MIX_SPREAD

NUMBER(3)
hr

Period of time between mixing and spreading.
SPREAD_MIX_METHOD
SPREAD_MIX_METHODNUMBER(1)


Code indicating the method of spreading mixture.
SPREAD_MIX_METHOD_OTHER

VARCHAR2(40)


Method of spreading mixture if other than those specified.
MEAN_MIXING_TEMP

NUMBER(3)
deg F

Average temperature of mixture during mixing at the plant.
LAYDOWN_TEMP_MEAN

NUMBER(3)
deg F

Average temperature of the asphalt concrete at lay down.
LAYDOWN_TEMP_MIN

NUMBER(3)
deg F

Minimum temperature of asphalt concrete at lay down.
NO_TESTS_LAYDOWN_TEMP

NUMBER(3)


Number of measurements of asphalt concrete lay down temps.
STATE_CODE
STATE_PROVINCENUMBER(2)


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

NUMBER(3)
deg F

Maximum temperature of the asphalt concrete at lay down.
LAYDOWN_TEMP_STD_DEV

NUMBER(3)
deg F

Standard deviation of asphalt concrete lay down temperature.
RECORD_STATUS

VARCHAR2(1)


A code indicating the general quality of the data.
DATE_COMPLETE

DATE


Date activity was completed.
CONSTRUCTION_NO

NUMBER(2)


Event number used to relate changes in pavement structure with other time dependent data elements. This field is set to 1 when a test section is initially accepted into LTPP and is incremented with each change to the layer structure.
LAYER_NO

NUMBER(2)


Unique sequential number assigned to pavement layers, starting with layer 1 as the deepest layer (subgrade).
IMP_TYPE
MAINT_WORKNUMBER(3)


Code for type of maintenance or rehabilitation work performed.
RECYCLING_TYPE
RECYCLING_TYPENUMBER(1)


Code indicating the recycling method used.
MIX_PROCEDURE
MIX_PROCEDURENUMBER(1)


Code for procedure for mixing in place.
MIX_PROCEDURE_OTHER

VARCHAR2(40)


Procedure for mixing in place if other than those specified.