Technician Information for Jonathan De Jong

First NameJonathan
Last NameDe Jong
Technician ID04980

Associated Labs

Total 1 item.
Lab NameManager NameFull AddressDistrictPage Alias
County of Santa ClaraAioub Hashemi11030 Doyle Road, San Jose, CA 951294Lab 1

Test Methods

California Test (CT) Certifications

Total 34 items.
Test MethodExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
CT 504 Air Content of PCC - Pressure Method (JTCP - PCC)2027-03-27ActiveSarbjit GrewalLab 1(No comments)
CT 518 Unit Weight - PCC (JTCP - PCC)2027-03-27ActiveSarbjit GrewalLab 1(No comments)
CT 523.1 Section B.1 & B.2 Flexural Strength (Field Fabrication) (JTCP - PCC)2027-03-27ActiveSarbjit GrewalLab 1(No comments)
CT 539 Sampling Fresh Concrete (JTCP - PCC)2027-03-27ActiveSarbjit GrewalLab 1(No comments)
CT 540 Making Cylinders - PCC (JTCP - PCC)2027-03-27ActiveSarbjit GrewalLab 1(No comments)
CT 543 Air Content of PCC - Volumetric Method (JTCP - PCC)2027-03-27ActiveSarbjit GrewalLab 1(No comments)
CT 556 Slump - PCC (JTCP - PCC)2027-03-27ActiveSarbjit GrewalLab 1(No comments)
CT 557 Temperature - PCC (JTCP - PCC)2027-03-27ActiveSarbjit GrewalLab 1(No comments)
CT 105 Calculations - Gradings (JTCP - HMA I / S&A)2027-03-01ActiveGabriela LopezLab 1(No comments)
CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A)2027-03-01ActiveGabriela LopezLab 1(No comments)
CT 125 HMA Sampling - HMA (JTCP - HMA I)2027-03-01ActiveGabriela LopezLab 1(No comments)
CT 306 Reducing Samples of Asphalt Mixtures (JTCP - HMA I)2027-03-01ActiveGabriela LopezLab 1(No comments)
CT 231 Relative Compaction - Nuclear Gage 2026-05-08ActiveDavid SmallLab 1(No comments)
CT 521.2 Compressive Strength - PCC (ASTM C39 / C1231) 2026-05-08ActiveDavid SmallLab 1
Created based on CT521 certificate ID83235
CT 521.1 Compressive Strength - PCC (ASTM C39 / C617) 2026-05-08ActiveDavid SmallLab 1 Created based on CT521 certificate ID83235
CT 211 LA Rattler 2026-03-26ActiveDavid SmallLab 1(No comments)
CT 389 Hamburg Wheel-Track 2026-03-26ActiveDavid SmallLab 1(No comments)
CT 201 Sample Preparation - Soil and Aggregates (JTCP - S&A)2025-03-11ActiveGabriela LopezLab 1(No comments)
CT 202 Sieve analysis - Fine and Coarse Aggregates (JTCP - S&A)2025-03-11ActiveAvinash RallaLab 1(No comments)
CT 205 Percent Crushed Particles (JTCP - S&A)2025-03-11ActiveAvinash RallaLab 1(No comments)
CT 216 Relative Compaction - Soils and Aggregates (JTCP - S&A)2025-03-11ActiveAvinash RallaLab 1(No comments)
CT 217 Sand Equivalent (JTCP - S&A)2025-03-11ActiveAvinash RallaLab 1(No comments)
CT 226 Moisture Content - Soils and Aggregates (JTCP - S&A)2025-03-11ActiveAvinash RallaLab 1(No comments)
CT 227 Cleanness Value (JTCP - S&A)2025-03-11ActiveAvinash RallaLab 1(No comments)
CT 229 Durability (JTCP - S&A)2025-03-11ActiveAvinash RallaLab 1(No comments)
CT 212 Unit Weight of Aggregates 2025-03-07ActiveDavid SmallLab 1(No comments)
CT 375 AC Density by Nuclear Gage 2025-03-07ActiveDavid SmallLab 1(No comments)
CT 531 Core Length - PCC 2025-03-07ActiveDavid SmallLab 1(No comments)
CT 533 Ball Penetration - PCC 2025-03-07ActiveDavid SmallLab 1(No comments)
CT 309 Max SpG and Density - HMA 2025-02-28ActiveDavid SmallLab 1(No comments)
CT 301 "R" Value 2024-10-20ActiveDavid SmallLab 1(No comments)
CT 106 Definitions - Specific Gravity (SpG) 2024-09-30ActiveDavid SmallLab 1(No comments)
CT 206 SpG & Absorption - Coarse Aggregates 2024-09-30ActiveDavid SmallLab 1(No comments)
CT 207 SpG & Absorption - Fine Aggregates 2024-09-30ActiveDavid SmallLab 1(No comments)

AASHTO/ASTM Proficiencies

Total 20 items.
Test MethodExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
AASHTO T166 Bulk SpG of Compacted HMA - SSD (JTCP - HMA II)2027-05-23ActiveFirooz Ahmad HosainyLab 1(No comments)
AASHTO T209 Max SpG and Density - HMA (JTCP - HMA II)2027-05-23ActiveFirooz Ahmad HosainyLab 1(No comments)
AASHTO T269 Percent Air Voids - HMA (JTCP - HMA II)2027-05-23ActiveFirooz Ahmad HosainyLab 1(No comments)
AASHTO T275 Bulk SpG - HMA (JTCP - HMA II)2027-05-23ActiveFirooz Ahmad HosainyLab 1(No comments)
AASHTO T308 AC Content (Ignition Oven) - HMA (JTCP - HMA II)2027-05-23ActiveFirooz Ahmad HosainyLab 1(No comments)
AASHTO T11 Sieve Analysis (Washing) - Fine Aggregates (JTCP - HMA I)2027-03-01ActiveGabriela LopezLab 1(No comments)
AASHTO T27 Sieve Analysis - Fine and Coarse Aggregates (JTCP - HMA I)2027-03-01ActiveGabriela LopezLab 1(No comments)
AASHTO R47 Reducing Samples of HMA (JTCP - HMA I)2027-03-01ActiveGabriela LopezLab 1(No comments)
AASHTO R76 Reducing Samples of Agg (JTCP - HMA I)2027-03-01ActiveGabriela LopezLab 1(No comments)
AASHTO T176 Sand Equivalent (JTCP - HMA I)2027-03-01ActiveGabriela LopezLab 1(No comments)
AASHTO T255 Evaporable Moisture Content (JTCP - HMA I)2027-03-01ActiveGabriela LopezLab 1(No comments)
AASHTO T329 Moisture Content (Oven Method) - HMA (JTCP - HMA I)2027-03-01ActiveGabriela LopezLab 1(No comments)
AASHTO T335 Percentage of Fracture (JTCP - HMA I)2027-03-01ActiveGabriela LopezLab 1(No comments)
AASHTO T96 L.A. Rattler 2026-03-26ActiveDavid SmallLab 1(No comments)
AASHTO T304 Uncompacted Void - Fine Aggregate 2026-03-26ActiveDavid SmallLab 1(No comments)
AASHTO T312 Gyratory Compactor 2026-03-26ActiveDavid SmallLab 1(No comments)
AASHTO T324 Hamburg Wheel-Track 2026-03-26ActiveDavid SmallLab 1(No comments)
ASTM D4791 Flat and Elongated Particles 2026-03-26ActiveDavid SmallLab 1(No comments)
AASHTO T84 SpG & Absorption - Fine Aggregates 2025-03-07ActiveDavid SmallLab 1(No comments)
AASHTO T85 SpG & Absorption - Coarse Aggregates 2025-03-07ActiveDavid SmallLab 1(No comments)