Tester Information for David Walker

Basic Information

First NameDavid
Last NameWalker
StatusActive

Associated Labs

Total 1 item.
Lab NameManager NameFull AddressDistrictPage Alias
Martin MariettaDavid Walker12560 CA-67, Lakeside, CA 9204011Lab 1

Test Methods

California Test (CT) Certifications

Total 26 items.
Test MethodExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
CT 205 Percent Crushed Particles (JTCP - S&A)2018-02-21ExpiredRoy(Chip) DennerLab 1(No comments)
CT 370 Moisture Content by Microwave 2019-08-03ExpiredRoy(Chip) DennerLab 1(No comments)
CT 202 Sieve analysis - Fine and Coarse Aggregates (JTCP - S&A)2020-01-03ExpiredRoy(Chip) DennerLab 1(No comments)
CT 217 Sand Equivalent (JTCP - S&A)2020-01-03ExpiredRoy(Chip) DennerLab 1(No comments)
CT 226 Moisture Content - Soils and Aggregates (JTCP - S&A)2020-01-23ExpiredRoy(Chip) DennerLab 1(No comments)
CT 382 AC Content by Ignition Oven 2020-01-23ExpiredRoy(Chip) DennerLab 1(No comments)
CT 201 Sample Preparation - Soil and Aggregates (JTCP - S&A)2020-03-19ExpiredRoy(Chip) DennerLab 1(No comments)
CT 125 BIT Sampling - BITUMINOUS 2021-11-06ExpiredRoy(Chip) DennerLab 1(No comments)
CT 125 AGG Sampling - AGGREGATES 2022-12-06ActiveRoy(Chip) DennerLab 1(No comments)
CT 125 GEN Sampling - GENERAL 2022-12-06ActiveRoy(Chip) DennerLab 1(No comments)
CT 125 HMA Sampling - HMA 2022-12-06ActiveRoy(Chip) DennerLab 1(No comments)
CT 206 SpG & Absorption - Coarse Aggregates 2022-12-06ActiveRoy(Chip) DennerLab 1(No comments)
CT 207 SpG & Absorption - Fine Aggregates 2022-12-06ActiveRoy(Chip) DennerLab 1(No comments)
CT 211 LA Rattler 2022-12-06ActiveRoy(Chip) DennerLab 1(No comments)
CT 235 Flat and Elongated Particles 2023-03-01ActiveRoy(Chip) DennerLab 1(No comments)
CT 304 Sample Preparation - HMA 2023-03-01ActiveRoy(Chip) DennerLab 1(No comments)
CT 366 Stabilometer 2023-03-01ActiveRoy(Chip) DennerLab 1(No comments)
CT 389 Hamburg Wheel-Track 2023-03-01ActiveRoy(Chip) DennerLab 1(No comments)
CT 308 Bulk SpG and Density - HMA 2023-05-26ActiveRoy(Chip) DennerLab 1(No comments)
CT 309 Max SpG and Density - HMA 2023-05-26ActiveRoy(Chip) DennerLab 1(No comments)
CT 371 Moisture Induced Damage (TSR) 2023-05-26ActiveRoy(Chip) DennerLab 1(No comments)
CT 106 Definitions - Specific Gravity (SpG) 2023-06-30ActiveRoy(Chip) DennerLab 1(No comments)
CT 105 Calculations - Gradings (JTCP - HMA I / S&A)2025-11-18ActiveDalton LaBoskeyLab 1(No comments)
CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A)2025-11-18ActiveDalton LaBoskeyLab 1(No comments)
CT 125 HMA Sampling - HMA (JTCP - HMA I)2025-11-18ActiveDalton LaBoskeyLab 1(No comments)
CT 306 Reducing Samples of Asphalt Mixtures (JTCP - HMA I)2025-11-18ActiveDalton LaBoskey(No lab)(No comments)

AASHTO/ASTM Proficiencies