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Aggregate Tester Jobs (NOW HIRING)

Calo Companies

Aggregate Testing Technician

Northville, MI · On-site

$18.75 - $23.75/hr

The Aggregate Tester is responsible for sieve analysis for several different products such as 21AA, CLII, 6A, IV3 materials. Will be expected to report daily sales to MDOT weekly. Work with site ...

Advance Testing

Laboratory Technician

Campbell Hall, NY · On-site

$18 - $22/hr

Advance Testing, an established New York-based construction materials testing and inspection firm, performs testing and inspection of construction materials such as soils, aggregates, concrete ...

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How much do aggregate tester jobs pay per hour?

As of Jun 4, 2026, the average hourly pay for aggregate tester in the United States is $47.54, according to ZipRecruiter salary data. Most workers in this role earn between $37.50 and $56.01 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an Aggregate Tester, and why are they important?

To thrive as an Aggregate Tester, you need a basic understanding of material science, strong math skills, and typically a high school diploma or equivalent. Familiarity with laboratory testing equipment, data recording systems, and relevant certifications such as ACI or state-specific materials testing credentials are often required. Attention to detail, problem-solving ability, and effective communication are crucial soft skills for accurate testing and reporting. These skills ensure test results are reliable and compliant with industry standards, contributing to the quality and safety of construction projects.

What are some common challenges Aggregate Testers face when working in a lab or field environment?

Aggregate Testers often work both in laboratory settings and on construction sites, facing challenges such as maintaining accuracy under tight project deadlines and adapting to varying weather conditions. Consistency in sample collection and preparing specimens correctly are crucial, as small errors can impact overall quality assessments. Additionally, Aggregate Testers must strictly follow safety protocols and manage repetitive tasks, while also collaborating closely with engineers and construction teams to ensure test results are communicated effectively.

What are Aggregate Testers?

Aggregate Testers are professionals who perform tests on construction materials, specifically aggregates like sand, gravel, and crushed stone, to ensure they meet quality and safety standards. They work in laboratories or on construction sites, using specialized equipment to analyze properties such as particle size, moisture content, and strength. Their work is crucial for determining the suitability of materials used in concrete, asphalt, and other construction applications. By conducting these tests, Aggregate Testers help maintain the structural integrity and longevity of buildings, roads, and other infrastructure.

What is the difference between Aggregate Tester vs Concrete Laboratory Technician?

AspectAggregate TesterConcrete Laboratory Technician
CertificationsTypically requires certifications in material testing and safetyRequires certifications in concrete testing and quality control
Work EnvironmentLaboratory and construction sites focusing on aggregate materialsLaboratory and construction sites focusing on concrete and mix designs
Industry UsageUsed in construction, civil engineering, and material testing labsUsed in concrete production, construction, and quality assurance labs

Aggregate Testers primarily focus on testing and analyzing aggregates used in construction, while Concrete Laboratory Technicians specialize in testing concrete mixes and ensuring quality standards. Both roles require similar certifications and work environments but differ in their specific material focus.

Infographic showing various Aggregate Tester job openings in the United States as of May 2026, with employment types broken down into 1% As Needed, 85% Full Time, 12% Part Time, 1% Contract, and 1% Nights. Highlights an 53% Physical, 1% Hybrid, and 46% Remote job distribution, with an average salary of $98,889 per year, or $47.5 per hour.

Aggregate Testing Technician

Calo Companies

Northville, MI • On-site

$18.75 - $23.75/hr

Part-time

Posted 15 days ago

Job description

Salary:

Do you want to make a positive impact on a company and the environment? This may be the job for you! Our aggregate supply company is looking for an MDOT certified testing technician to join our family of companies. The technician will travel to the 3 pit locations to obtain samples daily and prepare required sieve analysis.


Responsibilities:

The Aggregate Tester is responsible for sieve analysis for several different products such as 21AA, CLII, 6A, IV3 materials.

Will be expected to report daily sales to MDOT weekly.

Work with site supervisor to ensure material being produced to required specifications.

Provide sieve report to the site supervisor and advise on any adjustment that may be required in production to meet the special specifications.

Maintain all sieve reports and provide to customers upon request.

May be required to set up a pre-approved MDOT pit.

Set up a lab and obtain MDOT Certification for lab.

Other duties as assigned.


Required Qualifications:

Must have at least 3 years experience (REQUIRED).

Must be a Michigan Certified Aggregate Technician and provide proof of valid certification.

Must have A, B, and C Endorsements and provide proof of certifications.

Must know how to run an aggregate lab and how to use tools such as splitter, shaker, and sieve.


This is a Part Time to full time , hourly position that will require travel to different site locations within Wayne Co.

Work is performed in a combination of an indoor laboratory and outdoor setting, which could include inclement weather, heat and cold.


TO APPLY: Please complete application or email Hrcalocompanies@gmail.com