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Fields for table: RHB_CMRAP_COMBINE_AC

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_SPECIFIC_GRAVITY

NUMBER(4,3)


Mean specific gravity of asphalt cement.
ASPHALT_VISCOSITY_140

NUMBER(6)
poise

Kinematic viscosity of asphalt at 140 degrees F.
ASPHALT_VISCOSITY_275

NUMBER(6,2)
centistokes

Absolute viscosity of asphalt at 275 degrees F.
PENETRATION_77

NUMBER(3)
.1 mm

Penetration at 77 degrees F.
MODIFIER_1
MODIFIERNUMBER(2)


Code indicating the type of asphalt cement modifier used.
MODIFIER_2
MODIFIERNUMBER(2)


Code indicating the type of asphalt cement modifier used.
MODIFIER_1_OTHER

VARCHAR2(40)


Type of asphalt cement modifier used if other than those specified.
MODIFIER_2_OTHER

VARCHAR2(40)


Type of asphalt cement modifier used if other than those specified.
MODIFIER_QTY_1

NUMBER(2)
%

Amount of asphalt cement modifier used percent by weight of asphalt cement.
MODIFIER_QTY_2

NUMBER(2)
%

Amount of asphalt cement modifier used percent by weight of asphalt cement.
STATE_CODE
STATE_PROVINCENUMBER(2)


Numerical code for state or province. U.S. codes are consistent with Federal Information Processing Standards.
DUCTILITY_77

NUMBER(3)
cm

Ductility of combined asphalt cement at 77 degrees F.
DUCTILITY_39

NUMBER(3)
cm

Ductility of combined asphalt cement at 39.2 degrees F.
DUCTILITY_TEST_RATE

NUMBER(3)
cm/min

Test rate for ductility measurement at 39.2 degrees F.
PENETRATION_39

NUMBER(3)
.1 mm

Penetration at 39.2 degrees F.
RING_BALL_SOFT_PT

NUMBER(3)
deg F

Softening point of asphalt cement as measured with ring and ball apparatus.
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).
RECYCLE_AGENT_TYPE
RECYCLENUMBER(2)


Code for type of recycling agent.
RECYCLE_AGENT_PERCENT

NUMBER(2)
%

Quantity of recycling agent.
RECYCLE_AGENT_OTHER

VARCHAR2(40)


Type of recycling agent if other than those specified.
AC_AMOUNT_NEW

NUMBER(3,1)
%

Percent of new asphalt cement added by weight.