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Aggregate Testing Jobs (NOW HIRING)

Knife River Corporation

QUALITY CONTROL TECH

Stockton, CA · On-site

$19.75 - $25.25/hr

The Quality Control Technician is responsible for quality control testing and reporting duties in the concreate and aggregates testing laboratory; responsible for pulling samples from stockpiles ...

Magnolia Materials, LLC

Asphalt Lab Technician

Pearl, MS · On-site

$16.50 - $21.75/hr

Key Responsibilities • Perform asphalt and aggregate testing in accordance with MDOT, AASHTO, and ASTM standards • Conduct gradation analysis, volumetric testing, and quality control ...

CalPortland

Quality Control Lab Technician

Fillmore, CA

$25 - $30/hr

Job Summary The Quality Control Lab Technician will perform quality control testing and reporting duties in the concrete and concrete aggregates testing laboratory. Benefits CalPortland is proud to ...

CalPortland

Quality Control Lab Technician

Fillmore, CA · On-site

$25 - $30/hr

Job Summary The Quality Control Lab Technician will perform quality control testing and reporting duties in the concrete and concrete aggregates testing laboratory. Benefits CalPortland is proud to ...

Magnolia Materials, LLC

Asphalt Lab Technician

Tupelo, MS · On-site

$18 - $24/hr

Key Responsibilities • Perform asphalt and aggregate testing in accordance with MDOT, AASHTO, and ASTM standards • Conduct gradation analysis, volumetric testing, and quality control ...

Magnolia Materials, LLC

Asphalt Lab Technician

Oxford, MS · On-site

$18 - $23.75/hr

Key Responsibilities • Perform asphalt and aggregate testing in accordance with MDOT, AASHTO, and ASTM standards • Conduct gradation analysis, volumetric testing, and quality control ...

CalPortland

Quality Control Lab Technician

Fillmore, CA · On-site

$25 - $30/hr

Job Summary The Quality Control Lab Technician will perform quality control testing and reporting duties in the concrete and concrete aggregates testing laboratory. Benefits CalPortland is proud to ...

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Aggregate Testing information

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How much do aggregate testing jobs pay per hour?

As of Sep 7, 2026, the average hourly pay for aggregate testing in the United States is $29.58, according to ZipRecruiter salary data. Most workers in this role earn between $19.47 and $32.93 per hour, depending on experience, location, and employer.

What is the difference between Aggregate Testing vs Concrete Testing?

AspectAggregate TestingConcrete Testing
CredentialsLaboratory technician, civil engineerLaboratory technician, civil engineer
Work EnvironmentMaterial testing labs, construction sitesMaterial testing labs, construction sites
Industry UsageConstruction, civil engineeringConstruction, civil engineering
PurposeAssess properties of aggregates like strength, durabilityAssess overall concrete quality, strength, and setting

Aggregate Testing focuses on evaluating the properties of aggregates used in construction, such as strength and durability. Concrete Testing assesses the quality and strength of the concrete mixture itself. Both are essential in construction but serve different roles in ensuring material performance and safety.

How to become a construction materials tester?

To become a construction materials tester, typically one needs a high school diploma or equivalent, followed by specialized training or certification in materials testing methods. Gaining experience with testing tools and procedures, such as sieve analysis or concrete testing, is important, and some positions may require certification from organizations like the American Concrete Institute or the National Institute for Certification in Engineering Technologies.
More about Aggregate Testing jobs

What cities are hiring for Aggregate Testing jobs?

Cities with the most Aggregate Testing job openings:

What states have the most Aggregate Testing jobs?

States with the most job openings for Aggregate Testing jobs include:

What job categories do people searching Aggregate Testing jobs look for?

The top searched job categories for Aggregate Testing jobs are:

Aggregate Testing jobs near you
Infographic showing various Aggregate Testing job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 85% Full Time, 10% Part Time, 3% Contract, and 1% Nights. Highlights an 88% Physical, 2% Hybrid, and 10% Remote job distribution, with an average salary of $61,523 per year, or $29.6 per hour.

QUALITY CONTROL TECH

Knife River Corporation

Stockton, CA • On-site

$19.75 - $25.25/hr

Full-time

Re-posted 9 days ago

Knife River rating

7.4

Company rating: 7.4 out of 10

Based on 64 frontline employees who took The Breakroom Quiz

297th of 546 rated manufacturers

Job description

Great Pay! Great Benefits! Strong Teams! Knife River is a PEOPLE-first company. Our teams are the foundation of our success, and we're committed to providing the training, tools and support to do great work and go home safely at the end of each day. Join a team that looks out for one another and supports career growth from day one.
The Quality Control Technician is responsible for quality control testing and reporting duties in the concreate and aggregates testing laboratory; responsible for pulling samples from stockpiles, testing and evaluating materials and comparing it to the specifications.
1. Supervise aggregate production quality assurance and testing process.
2. Conduct Aggregate Testing and Concrete Ready Mix production testing: sampling, aggregate gradation and mixture volumetric property determination where applicable. Maintain test result database including inputting data. Evaluate data for deviations or trends away from acceptable standards. Follow quality control plans or guidelines as assigned. Communicate results to appropriate stakeholders.
3. Act as Weighmaster for the site, following weighing procedures and working with state agencies as required.
4. Provide aggregate testing training for inter/intra company personnel.
5. Maintain current certifications and expand certifications to allow cross-training throughout company.
6. Perform back up parts running as necessary.
7. Maintain confidentiality of aggregate lab and testing reports.
8. Complete and report accurately on timecards and other needed reports.
9. Always work safely and take action to prevent any and all unsafe actions, processes, and behaviors.
10. Perform other duties as assigned.
If unable to apply online, mail completed application to: PO Box 6099 Stockton, CA 95206
Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.

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