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Fields for table: INV_PCC_STRENGTH

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.
ELASTIC_MOD_METHOD
ELASTIC_MODULUS_METHODNUMBER(1)


Code for the method for determination of elastic modulus.
ELASTIC_MOD_METHOD_OTHER

VARCHAR2(40)


Other method for determination of elastic modulus.
FLEXURAL_STRENGTH_TYPE
FLEXURAL_STRENGTH_TYPENUMBER(1)


Code for the type of flexural strength test.
FLEXURAL_STRENGTH_AGE

NUMBER(3)
days

Age of the sample at the time of testing.
FLEXURAL_STRENGTH_MEAN

NUMBER(5)
psi

Mean flexural strength.
FLEXURAL_STRENGTH_MIN

NUMBER(5)
psi

Minimum flexural strength.
FLEXURAL_STRENGTH_MAX

NUMBER(5)
psi

Maximum flexural strength.
NO_FLEXURAL_STRENGTH_TESTS

NUMBER(3)


Number of flexural strength tests performed.
FLEXURAL_STRENGTH_STD_DEV

NUMBER(6,1)
psi

Standard deviation of the flexural strength.
COMP_STRENGTH_AGE

NUMBER(3)
days

Age of the sample at the time of compressive strength testing.
STATE_CODE
STATE_PROVINCENUMBER(2)


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

NUMBER(5)
psi

Mean compressive strength.
COMP_STRENGTH_MAX

NUMBER(5)
psi

Maximum compressive strength.
COMP_STRENGTH_MIN

NUMBER(5)
psi

Minimum compressive strength.
NO_COMP_STRENGTH_TESTS

NUMBER(3)


Number of compressive strength tests performed.
COMP_STRENGTH_STD_DEV

NUMBER(5)
psi

Standard deviation of the compressive strength tests.
TENSILE_STRENGTH_AGE

NUMBER(3)
days

Age of the sample at the time of splitting tensile strength testing.
TENSILE_STRENGTH_MEAN

NUMBER(4)
psi

Mean splitting tensile strength.
TENSILE_STRENGTH_MAX

NUMBER(4)
psi

Maximum splitting tensile strength.
TENSILE_STRENGTH_MIN

NUMBER(4)
psi

Minimum splitting tensile strength.
NO_TENSILE_STRENGTH_TESTS

NUMBER(3)


Number of splitting tensile tests performed.
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.
TENSILE_STRENGTH_STD_DEV

NUMBER(4)
psi

Standard deviation of the splitting tensile strength.
RECORD_STATUS

VARCHAR2(1)


A code indicating the general quality of the data.
LAYER_NO

NUMBER(2)


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

NUMBER(5)
ksi

Mean elastic modulus.
ELASTIC_MOD_MIN

NUMBER(5)
ksi

Minimum elastic modulus.
ELASTIC_MOD_MAX

NUMBER(5)
ksi

Maximum elastic modulus.
NO_ELASTIC_MOD_TESTS

NUMBER(3)


Number of elastic modulus tests.
ELASTIC_MOD_STD_DEV

NUMBER(5)
ksi

Standard deviation of the elastic modulus.