Lab details for Twining, Inc. (Concord)
Basic Information
| Lab Name | Twining, Inc. (Concord) |
|---|---|
| Manager Name | Christian Masse |
| Lab Email | cmasse@twininginc.com |
| Lab Telephone | 916-649-9000 |
| Lab Fax | |
| Lab Full Address | 5027 Commercial Circle, Suite G, Concord, CA 94520 |
| Zip | 94520 |
| Lab Type | Private |
| District | 4 |
| Mobile Lab Full Address | , , |
RSP Information
5027 Commercial Circle, Suite G, Concord , CA 94520
Test Methods
California Test (CT) Accreditations
Total 22 items.
AASHTO/ASTM Proficiencies
Total 8 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Technician Certified? | Comments |
|---|---|---|---|---|---|---|
| AASHTO T11: Sieve Analysis (Washing) - Fine Aggregates (JTCP) | 2026-06-23 | 2027-06-23 | Active | Joshua Gallaway | No | (not set) |
| AASHTO T27: Sieve Analysis - Fine and Coarse Aggregates (JTCP) | 2026-06-23 | 2027-06-23 | Active | Joshua Gallaway | No | (not set) |
| AASHTO T84: SpG & Absorption - Fine Aggregates | 2026-06-23 | 2027-06-23 | Active | Joshua Gallaway | No | (not set) |
| AASHTO T85: SpG & Absorption - Coarse Aggregates | 2026-06-23 | 2027-06-23 | Active | Joshua Gallaway | No | (not set) |
| AASHTO T176: Sand Equivalent (JTCP) | 2026-06-23 | 2027-06-23 | Active | Joshua Gallaway | No | (not set) |
| AASHTO T210: Aggregate Durability Index | 2026-06-23 | 2027-06-23 | Active | Joshua Gallaway | No | (not set) |
| AASHTO T248: Reducing Samples of Agg. (JTCP) | 2026-06-23 | 2027-06-23 | Active | Joshua Gallaway | No | (not set) |
| AASHTO T255: Evaporable Moisture Content (JTCP) | 2026-06-23 | 2027-06-23 | Active | Joshua Gallaway | No | (not set) |
Technicians in the Lab
Technician Summary
Total 1 item.
| First Name | Last Name | Actions |
|---|---|---|
| Christian | Masse | View |
Technician Details
Details for Christian Masse
| First Name | Christian |
|---|---|
| Last Name | Masse |
| Status | Active |
Total 23 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| CT 105: Calculations - Gradings (JTCP) | 2026-01-09 | 2029-01-09 | Active | Wei Geng | No |
| CT 125 AGG: Sampling - AGGREGATES (JTCP) | 2026-01-09 | 2029-01-09 | Active | Wei Geng | Yes |
| CT 125 HMA: Sampling - HMA (JTCP) | 2023-04-21 | 2026-04-21 | Expired | Gabriela Lopez | No |
| CT 201: Sample Preparation - Soil and Aggregates (JTCP) | 2026-01-09 | 2029-01-09 | Active | Wei Geng | Yes |
| CT 202: Sieve analysis - Fine and Coarse Aggregates (JTCP) | 2026-01-09 | 2029-01-09 | Active | Wei Geng | Yes |
| CT 205: Percent Crushed Particles (JTCP) | 2026-01-09 | 2029-01-09 | Active | Wei Geng | Yes |
| CT 216: Relative Compaction - Soils and Aggregates (JTCP) | 2026-01-09 | 2029-01-09 | Active | Wei Geng | Yes |
| CT 217: Sand Equivalent (JTCP) | 2026-01-09 | 2029-01-09 | Active | Wei Geng | Yes |
| CT 226: Moisture Content - Soils and Aggregates (JTCP) | 2026-01-09 | 2029-01-09 | Active | Wei Geng | Yes |
| CT 227: Cleanness Value (JTCP) | 2026-01-09 | 2029-01-09 | Active | Wei Geng | Yes |
| CT 229: Durability (JTCP) | 2026-01-09 | 2029-01-09 | Active | Wei Geng | Yes |
| CT 306: Reducing Samples of Asphalt Mixtures (JTCP) | 2023-04-21 | 2026-04-21 | Expired | Gabriela Lopez | No |
| CT 389: Hamburg Wheel-Track | 2024-06-20 | 2025-06-20 | Expired | Sarbjit Grewal | No |
| CT 504: Air Content of PCC - Pressure Method (JTCP) | 2024-11-15 | 2029-11-15 | Active | Gabriela Lopez | Yes |
| CT 518: Unit Weight - PCC (JTCP) | 2024-11-15 | 2029-11-15 | Active | Gabriela Lopez | Yes |
| CT 523.1 Section B.1 & B.2: Flexural Strength (Field Fabrication) (JTCP) | 2024-11-15 | 2029-11-15 | Active | Gabriela Lopez | No |
| CT 523.2 Section B.3: Flexural Strength (Lab Test) | 2024-06-20 | 2025-06-20 | Expired | Sarbjit Grewal | No |
| CT 524: Flexural Strength of Rapid Strength - PCC | 2024-06-20 | 2026-06-20 | Expired | Sarbjit Grewal | No |
| CT 539: Sampling Fresh Concrete (JTCP) | 2024-11-15 | 2029-11-15 | Active | Gabriela Lopez | Yes |
| CT 540: Making Cylinders - PCC (JTCP) | 2024-11-15 | 2029-11-15 | Active | Gabriela Lopez | Yes |
| CT 543: Air Content of PCC - Volumetric Method (JTCP) | 2024-11-15 | 2029-11-15 | Active | Gabriela Lopez | No |
| CT 556: Slump - PCC (JTCP) | 2024-11-15 | 2029-11-15 | Active | Gabriela Lopez | No |
| CT 557: Temperature - PCC (JTCP) | 2024-11-15 | 2029-11-15 | Active | Gabriela Lopez | No |
Total 15 items.
| Test Method | Obtained Date | Expiration Date | Status | IA Responsible | Within Lab Scope? |
|---|---|---|---|---|---|
| AASHTO T11: Sieve Analysis (Washing) - Fine Aggregates (JTCP) | 2023-04-21 | 2026-04-21 | Expired | Gabriela Lopez | Yes |
| AASHTO T27: Sieve Analysis - Fine and Coarse Aggregates (JTCP) | 2023-04-21 | 2026-04-21 | Expired | Gabriela Lopez | Yes |
| AASHTO R47: Reducing Samples of HMA (JTCP) | 2023-04-21 | 2026-04-21 | Expired | Gabriela Lopez | No |
| AASHTO R76: Reducing Samples of Agg (JTCP) | 2023-04-21 | 2026-04-21 | Expired | Gabriela Lopez | No |
| AASHTO T166: Bulk SpG of Compacted HMA - SSD (JTCP) | 2023-10-05 | 2026-10-05 | Active | Avinash Ralla | No |
| AASHTO T176: Sand Equivalent (JTCP) | 2023-04-21 | 2026-04-21 | Expired | Gabriela Lopez | Yes |
| AASHTO T209: Max SpG and Density - HMA (JTCP) | 2023-10-05 | 2026-10-05 | Active | Avinash Ralla | No |
| AASHTO T255: Evaporable Moisture Content (JTCP) | 2023-04-21 | 2026-04-21 | Expired | Gabriela Lopez | Yes |
| AASHTO T269: Percent Air Voids - HMA (JTCP) | 2023-10-05 | 2026-10-05 | Active | Avinash Ralla | No |
| AASHTO T275: Bulk SpG - HMA (JTCP) | 2023-10-05 | 2026-10-05 | Active | Avinash Ralla | No |
| AASHTO T283: Moisture Induced Damage (TSR) | 2024-06-20 | 2025-06-20 | Expired | Sarbjit Grewal | No |
| AASHTO T308: AC Content (Ignition Oven) - HMA (JTCP) | 2023-10-05 | 2026-10-05 | Active | Avinash Ralla | No |
| AASHTO T324: Hamburg Wheel-Track | 2024-06-20 | 2025-06-20 | Expired | Sarbjit Grewal | No |
| AASHTO T329: Moisture Content (Oven Method) - HMA (JTCP) | 2023-04-21 | 2026-04-21 | Expired | Gabriela Lopez | No |
| AASHTO T335: Percentage of Fracture (JTCP) | 2023-04-21 | 2026-04-21 | Expired | Gabriela Lopez | No |
For concerns with missing or erroneous data, please contact your Independent Assurance personnel