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Fields for table: INV_ADMIX

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.
STATE_CODE
STATE_PROVINCENUMBER(2)


Numerical code for state or province. U.S. codes are consistent with Federal Information Processing Standards.
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).
ADMIXTURE_TYPE
INV_ADMIX_TYPEVARCHAR2(4)


Code indicating type of admixture used in the concrete.
ADMIXTURE_AMT

NUMBER(6,3)
%

Percent of admixture used as expressed as percent by weight.
ADMIXTURE_TYPE_OTHER

VARCHAR2(40)


Type of admixture used in the concrete if other than those listed.
SORT_CODE

NUMBER(1)


Internal code to indicate the order the data were entered.
RECORD_STATUS

VARCHAR2(1)


A code indicating the general quality of the data.