144(i) Asphalt Mix Design Technician: An Asphalt Mix Design Technician is responsible for designing and adjusting asphalt mixes as needed, reviewing and approving all test results, having direct communication with the asphalt plant for making recommended adjustments and is capable of conducting any tests necessary to put the asphalt plant into operation.
j.Aggregate Properties Technician: An Aggregate Properties Technician conducts all aggregate tests on aggregate used in asphalt concrete and verify conformance to applicable requirements.
k.Slurry Surfacing Technician: A Slurry Surfacing Technician inspects the placement of emulsified asphalt slurry seal and latex modified emulsion treatment (Micro-surfacing) and verify conformance with applicable requirements.
l.Surface Treatment Technician: A Surface Treatment Technician inspects the placement of single seal and modified (blotted) seal coats to ensure and verify conformance to applicable requirements. SECTION 201—MINERAL FILLER
201.01 Description
These specifications cover inorganic material such as lime or fly ash, usually of very fine grading, added to soil or asphalt to produce a desired effect.
201.02 Detail Requirements
Mineral filler shall conform to the requirements of AASHTO M17. Tests to verify conformance will be performed in accordance with AASHTO T37. SECTION 202—FINE AGGREGATE
202.01 Description
These specifications cover material for use as fine aggregate in the production of hydraulic cement con - crete, mortar, asphalt concrete, and asphalt surface treatments.
202.02 Materials
Fine aggregate is classified herein in according to its natural occurrence or method of manufacture as natural sand or stone sand. Natural sand shall consist of grains of hard, sound material, predominantly quartz, occurring in natural deposits or in loosely bound deposits, such as sandstone conglomerate. Stone sand shall consist of sound crushed particles of approved Grade A stone, essentially free from flat or elongated pieces, with sharp edges and corners removed. Fine aggregates for use in hydraulic cement concrete that are obtained from more than one source shall not be used alternately or mixed without the Engineer’ s approval.200.06
Source: Virginia Road and Bridge Specifications, 2020 Edition. Pages 172–171 of 1,065.