Technician Information for Robert Patterson

First NameRobert
Last NamePatterson
Technician ID04062

Associated Labs

Total 2 items.
Lab NameManager NameFull AddressDistrictPage Alias
CalPortland ConstructionPatrick Imhoff1625 East Donovan Road, Santa Maria, CA 934545Lab 1
CalPortland - Paso PlantDaniel Ortega188 Volpi Ysabel Road, Paso Robles, CA 934465Lab 2

Test Methods

California Test (CT) Certifications

Total 24 items.
Test MethodExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
CT 125 CEM Sampling - CEM 2021-04-16ExpiredJeff RushLab 1(No comments)
CT 504 Air Content of PCC - Pressure Method (JTCP - PCC)2024-05-04ActiveShaya MeisamifardLab 1(No comments)
CT 518 Unit Weight - PCC (JTCP - PCC)2024-05-04ActiveShaya MeisamifardLab 1(No comments)
CT 539 Sampling Fresh Concrete (JTCP - PCC)2024-05-04ActiveShaya MeisamifardLab 1(No comments)
CT 540 Making Cylinders - PCC (JTCP - PCC)2024-05-04ActiveShaya MeisamifardLab 1(No comments)
CT 543 Air Content of PCC - Volumetric Method (JTCP - PCC)2024-05-04ActiveShaya MeisamifardLab 1(No comments)
CT 556 Slump - PCC (JTCP - PCC)2024-05-04ActiveShaya MeisamifardLab 1(No comments)
CT 557 Temperature - PCC (JTCP - PCC)2024-05-04ActiveShaya MeisamifardLab 1(No comments)
CT 105 Calculations - Gradings (JTCP - HMA I / S&A)2024-08-13ActiveSoroosh AmelianLab 1, Lab 2(No comments)
CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A)2024-08-13ActiveSoroosh AmelianLab 1, Lab 2(No comments)
CT 125 HMA Sampling - HMA (JTCP - HMA I)2024-08-13ActiveSarbjit GrewalLab 1, Lab 2(No comments)
CT 306 Reducing Samples of Asphalt Mixtures (JTCP - HMA I)2024-08-13ActiveSarbjit GrewalLab 1(No comments)
CT 201 Sample Preparation - Soil and Aggregates (JTCP - S&A)2025-01-14ActiveSoroosh AmelianLab 1, Lab 2(No comments)
CT 202 Sieve analysis - Fine and Coarse Aggregates (JTCP - S&A)2025-01-14ActiveSoroosh AmelianLab 1, Lab 2(No comments)
CT 205 Percent Crushed Particles (JTCP - S&A)2025-01-14ActiveSoroosh AmelianLab 1(No comments)
CT 216 Relative Compaction - Soils and Aggregates (JTCP - S&A)2025-01-14ActiveSoroosh AmelianLab 1(No comments)
CT 217 Sand Equivalent (JTCP - S&A)2025-01-14ActiveSoroosh AmelianLab 1, Lab 2(No comments)
CT 226 Moisture Content - Soils and Aggregates (JTCP - S&A)2025-01-14ActiveSoroosh AmelianLab 1, Lab 2(No comments)
CT 227 Cleanness Value (JTCP - S&A)2025-01-14ActiveSoroosh AmelianLab 1, Lab 2(No comments)
CT 229 Durability (JTCP - S&A)2025-01-14ActiveSoroosh AmelianLab 1, Lab 2(No comments)
CT 231 Relative Compaction - Nuclear Gage 2026-03-20ActiveEdwin Rojas FloresLab 1(No comments)
CT 375 AC Density by Nuclear Gage 2026-03-20ActiveEdwin Rojas FloresLab 1(No comments)
CT 389 Hamburg Wheel-Track 2026-03-20ActiveEdwin Rojas FloresLab 1(No comments)
CT 384 Combined Grade for HMA using up to 25% RAP 2026-04-19ActiveEdwin Rojas FloresLab 1, Lab 2(No comments)

AASHTO/ASTM Proficiencies

Total 18 items.
Test MethodExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
AASHTO T11 Sieve Analysis (Washing) - Fine Aggregates (JTCP - HMA I)2024-08-13ActiveSarbjit GrewalLab 1, Lab 2(No comments)
AASHTO T27 Sieve Analysis - Fine and Coarse Aggregates (JTCP - HMA I)2024-08-13ActiveSarbjit GrewalLab 1, Lab 2(No comments)
AASHTO R47 Reducing Samples of HMA (JTCP - HMA I)2024-08-13ActiveSarbjit GrewalLab 1, Lab 2(No comments)
AASHTO R76 Reducing Samples of Agg (JTCP - HMA I)2024-08-13ActiveSarbjit GrewalLab 1, Lab 2(No comments)
AASHTO T176 Sand Equivalent (JTCP - HMA I)2024-08-13ActiveSarbjit GrewalLab 1, Lab 2(No comments)
AASHTO T255 Evaporable Moisture Content (JTCP - HMA I)2024-08-13ActiveSarbjit GrewalLab 1, Lab 2(No comments)
AASHTO T329 Moisture Content (Oven Method) - HMA (JTCP - HMA I)2024-08-13ActiveSarbjit GrewalLab 1, Lab 2(No comments)
AASHTO T335 Percentage of Fracture (JTCP - HMA I)2024-08-13ActiveSarbjit GrewalLab 1, Lab 2(No comments)
AASHTO T166 Bulk SpG of Compacted HMA - SSD (JTCP - HMA II)2024-10-07ActiveSoroosh AmelianLab 1(No comments)
AASHTO T209 Max SpG and Density - HMA (JTCP - HMA II)2024-10-07ActiveSoroosh AmelianLab 1(No comments)
AASHTO T269 Percent Air Voids - HMA (JTCP - HMA II)2024-10-07ActiveSoroosh AmelianLab 1(No comments)
AASHTO T275 Bulk SpG - HMA (JTCP - HMA II)2024-10-07ActiveSoroosh AmelianLab 1(No comments)
AASHTO T308 AC Content (Ignition Oven) - HMA (JTCP - HMA II)2024-10-07ActiveSoroosh AmelianLab 1, Lab 2(No comments)
AASHTO T30 Mechanical Analysis of Extracted Aggregate 2026-03-19ActiveEdwin Rojas FloresLab 1, Lab 2(No comments)
AASHTO T96 L.A. Rattler 2026-03-19ActiveEdwin Rojas FloresLab 1(No comments)
AASHTO T283 Moisture Induced Damage (TSR) 2026-03-19ActiveEdwin Rojas FloresLab 1(No comments)
AASHTO T312 Gyratory Compactor 2026-03-19ActiveEdwin Rojas FloresLab 1(No comments)
AASHTO T324 Hamburg Wheel-Track 2026-03-19ActiveEdwin Rojas FloresLab 1(No comments)