Technician Information for Roy Schroeder

First NameRoy
Last NameSchroeder
Technician ID02169

Associated Labs

Total 1 item.
Lab NameManager NameFull AddressDistrictPage Alias
Twining Laboratories of Southern CaliforniaCorey Rhodes3310 Airport Way, Long Beach, CA 908067Lab 1

Test Methods

California Test (CT) Certifications

Total 29 items.
Test MethodExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
CT 105 Calculations - Gradings (JTCP - HMA I / S&A)2020-10-02ExpiredAshley ShawLab 1(No comments)
CT 106 Definitions - Specific Gravity (SpG) 2019-10-02ExpiredAshley ShawLab 1(No comments)
CT 125 ADMIX Sampling - ADMIXTURE 2018-02-18ExpiredRobby RodriguezLab 1(No comments)
CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A)2020-09-29ExpiredBrandt HouchenLab 1(No comments)
CT 125 BIT Sampling - BITUMINOUS 2018-02-18ExpiredRobby RodriguezLab 1(No comments)
CT 125 CEM Sampling - CEM 2021-09-29ExpiredBrandt HouchenLab 1(No comments)
CT 125 GEN Sampling - GENERAL 2021-09-29ExpiredBrandt HouchenLab 1(No comments)
CT 125 HMA Sampling - HMA (JTCP - HMA I)2020-09-29ExpiredBrandt HouchenLab 1(No comments)
CT 201 Sample Preparation - Soil and Aggregates (JTCP - S&A)2020-10-02ExpiredBrandt HouchenLab 1(No comments)
CT 202 Sieve analysis - Fine and Coarse Aggregates (JTCP - S&A)2019-10-02ExpiredBrandt HouchenLab 1(No comments)
CT 216 Relative Compaction - Soils and Aggregates (JTCP - S&A)2018-02-18ExpiredRobby RodriguezLab 1(No comments)
CT 217 Sand Equivalent (JTCP - S&A)2019-10-02ExpiredBrandt HouchenLab 1(No comments)
CT 226 Moisture Content - Soils and Aggregates (JTCP - S&A)2019-10-02ExpiredBrandt HouchenLab 1(No comments)
CT 227 Cleanness Value (JTCP - S&A)2019-10-02ExpiredBrandt HouchenLab 1(No comments)
CT 231 Relative Compaction - Nuclear Gage 2021-09-29ExpiredBrandt HouchenLab 1(No comments)
CT 308 Bulk SpG and Density - HMA 2019-10-02ExpiredBrandt HouchenLab 1(No comments)
CT 309 Max SpG and Density - HMA 2019-10-02ExpiredBrandt HouchenLab 1(No comments)
CT 370 Moisture Content by Microwave 2019-10-02ExpiredBrandt HouchenLab 1(No comments)
CT 382 AC Content by Ignition Oven 2019-10-02ExpiredBrandt HouchenLab 1(No comments)
CT 504 Air Content of PCC - Pressure Method (JTCP - PCC)2023-10-27ExpiredRichard HibbardLab 1(No comments)
CT 518 Unit Weight - PCC (JTCP - PCC)2023-10-27ExpiredRichard HibbardLab 1(No comments)
CT 523.1 Section B.1 & B.2 Flexural Strength (Field Fabrication) (JTCP - PCC)2020-01-20ExpiredChad ClaxtonLab 1(No comments)
CT 523.2 Section B.3 Flexural Strength (Lab Test) 2020-01-20ExpiredChad ClaxtonLab 1(No comments)
CT 533 Ball Penetration - PCC 2020-01-20ExpiredChad ClaxtonLab 1(No comments)
CT 539 Sampling Fresh Concrete (JTCP - PCC)2023-10-27ExpiredRichard HibbardLab 1(No comments)
CT 540 Making Cylinders - PCC (JTCP - PCC)2023-10-27ExpiredRichard HibbardLab 1(No comments)
CT 543 Air Content of PCC - Volumetric Method (JTCP - PCC)2023-10-27ExpiredRichard Hibbard(No lab)(No comments)
CT 556 Slump - PCC (JTCP - PCC)2023-10-27ExpiredRichard HibbardLab 1(No comments)
CT 557 Temperature - PCC (JTCP - PCC)2023-10-27ExpiredRichard HibbardLab 1(No comments)

AASHTO/ASTM Proficiencies