Technician Information for Robert Gray

First NameRobert
Last NameGray
Technician ID05658

Associated Labs

Lab NameLab Lab Manager NameFull AddressLab Lab DistrictPage Alias
No results found.

Test Methods

California Test (CT) Certifications

Total 14 items.
Test MethodObtained DateExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
CT 105 Calculations - Gradings (JTCP - HMA I / S&A)2023-03-102026-03-10ActiveAvinash Ralla(No lab)(No comments)
CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A)2023-03-102026-03-10ActiveAvinash Ralla(No lab)(No comments)
CT 205 Percent Crushed Particles (JTCP - S&A)2023-03-102026-03-10ActiveAvinash Ralla(No lab)(No comments)
CT 226 Moisture Content - Soils and Aggregates (JTCP - S&A)2023-03-102026-03-10ActiveAvinash Ralla(No lab)(No comments)
CT 125 HMA Sampling - HMA (JTCP - HMA I)2022-04-222025-04-22ExpiredDavid Medina(No lab)(No comments)
CT 201 Sample Preparation - Soil and Aggregates (JTCP - S&A)2023-03-102026-03-10ActiveDavid Medina(No lab)(No comments)
CT 216 Relative Compaction - Soils and Aggregates (JTCP - S&A)2023-03-102026-03-10ActiveDavid Medina(No lab)(No comments)
CT 217 Sand Equivalent (JTCP - S&A)2023-03-102026-03-10ActiveDavid Medina(No lab)(No comments)
CT 227 Cleanness Value (JTCP - S&A)2023-03-102026-03-10ActiveDavid Medina(No lab)(No comments)
CT 229 Durability (JTCP - S&A)2023-03-102026-03-10ActiveDavid Medina(No lab)(No comments)
CT 306 Reducing Samples of Asphalt Mixtures (JTCP - HMA I)2022-04-222025-04-22ExpiredDavid Medina(No lab)(No comments)
CT 106 Definitions - Specific Gravity (SpG) 2023-11-292024-11-29ExpiredAllen Oliver(No lab)(No comments)
CT 389 Hamburg Wheel-Track 2023-11-292024-11-29ExpiredAllen Oliver(No lab)(No comments)
CT 202 Sieve analysis - Fine and Coarse Aggregates (JTCP - S&A)InactiveBrooke Vanassa(No lab)Did not participate in 2024 CSP CT 202. Please contact CSP@dot.ca.gov for reinstatement instructions.

AASHTO/ASTM Proficiencies

Total 14 items.
Test MethodObtained DateExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
AASHTO T166 Bulk SpG of Compacted HMA - SSD (JTCP - HMA II)2022-08-112025-08-11ActiveBrian Ellis(No lab)(No comments)
AASHTO T209 Max SpG and Density - HMA (JTCP - HMA II)2022-08-112025-08-11ActiveBrian Ellis(No lab)(No comments)
AASHTO T269 Percent Air Voids - HMA (JTCP - HMA II)2022-08-112025-08-11ActiveBrian Ellis(No lab)(No comments)
AASHTO T275 Bulk SpG - HMA (JTCP - HMA II)2022-08-112025-08-11ActiveBrian Ellis(No lab)(No comments)
AASHTO T308 AC Content (Ignition Oven) - HMA (JTCP - HMA II)2022-08-112025-08-11ActiveBrian Ellis(No lab)(No comments)
AASHTO T11 Sieve Analysis (Washing) - Fine Aggregates (JTCP - HMA I)2022-04-222025-04-22ExpiredDavid Medina(No lab)(No comments)
AASHTO T27 Sieve Analysis - Fine and Coarse Aggregates (JTCP - HMA I)2022-04-222025-04-22ExpiredDavid Medina(No lab)(No comments)
AASHTO R47 Reducing Samples of HMA (JTCP - HMA I)2022-04-222025-04-22ExpiredDavid Medina(No lab)(No comments)
AASHTO R76 Reducing Samples of Agg (JTCP - HMA I)2022-04-222025-04-22ExpiredDavid Medina(No lab)(No comments)
AASHTO T176 Sand Equivalent (JTCP - HMA I)2022-04-222025-04-22ExpiredDavid Medina(No lab)(No comments)
AASHTO T255 Evaporable Moisture Content (JTCP - HMA I)2022-04-222025-04-22ExpiredDavid Medina(No lab)(No comments)
AASHTO T329 Moisture Content (Oven Method) - HMA (JTCP - HMA I)2022-04-222025-04-22ExpiredDavid Medina(No lab)(No comments)
AASHTO T335 Percentage of Fracture (JTCP - HMA I)2022-04-222025-04-22ExpiredDavid Medina(No lab)(No comments)
AASHTO T324 Hamburg Wheel-Track 2023-11-292024-11-29ExpiredAllen Oliver(No lab)(No comments)