Technician I Mortar, Concrete Laboratory

CTLGroup; Mount Prospect (IL); On-site; USD 38,000 - 50,000; Full time

Job summary

CTLGroup in Mount Prospect, Illinois, is seeking a Technician I for our Mortar Laboratory, primarily responsible for testing and evaluating mortar and related materials. This entry-level role includes sample preparation, performing various lab tests, and maintaining a clean lab environment in compliance with ASTM standards.

The ideal candidate should possess a high school diploma or GED and a strong attention to detail. Experience in a construction materials testing lab is preferred, along with basic computer skills. Join us in delivering exceptional technical services and solutions.

Qualifications

• 0–2 years of experience in a construction materials testing lab or related field.
• Ability to follow technical procedures and standard test methods.
• Ability to lift and carry up to 50 lbs.

Responsibilities

• Prepare and test mortar samples in accordance with ASTM standards.
• Perform physical and mechanical tests such as compressive strength and consistency.
• Clean and maintain laboratory equipment, tools, and workspaces.

Skills

Attention to detail

Data accuracy

Basic computer skills

Education

High school diploma or GED

Tools

Microsoft Excel

Microsoft Word

Job description

Position Summary

The Technician I – Mortar Laboratory supports the testing and evaluation of mortar and related cementitious materials. This entry-level position involves sample preparation, performing standardized lab tests, recording data, and maintaining a clean, organized lab environment in accordance with ASTM and AASHTO standards.

Key Responsibilities

• Prepare and test mortar samples in accordance with ASTM standards (e.g., ASTM C109, C305, etc.).
• Perform physical and mechanical tests such as compressive strength, flow, consistency, and setting time.
• Follow proper mixing, molding, and curing procedures for mortar cubes and other test specimens.
• Accurately record test results and maintain detailed lab documentation.
• Clean and maintain laboratory equipment, tools, and workspaces.
• Calibrate and verify equipment as required.
• Assist with receiving and logging materials for testing.
• Comply with safety procedures and use personal protective equipment (PPE) at all times.
• Support senior technicians and laboratory staff as needed.

Qualifications

• High school diploma or GED required; technical coursework in construction materials or engineering is a plus.
• 0–2 years of experience in a construction materials testing lab or related field.
• Ability to follow technical procedures and standard test methods.
• Strong attention to detail and commitment to data accuracy.
• Ability to lift and carry up to 50 lbs.
• Willingness to work in a dusty and sometimes physically demanding lab environment.
• Basic computer skills (Microsoft Excel, Word) preferred.

Preferred Certifications (not Required)

• ACI Level I – Concrete Field Testing Technician (may be required after hire)
• OSHA 10‑Hour Construction Safety (or willingness to obtain)

Work Environment

• Indoor laboratory setting with occasional exposure to outdoor materials storage.
• Physical activity required including standing, lifting, and bending.

Who We Are

We are CTLGroup, a team of engineers, architects, scientists, and consultants who are seasoned technical experts possessing unparalleled experience, knowledge, and testing proficiency in structures and materials. Our integrated team is backed by one of the most sophisticated commercial structural and building materials laboratories in the United States. Whether providing technical consultation, conducting laboratory studies, performing failure investigations, or offering expert testimony, we aim to solve our clients' problems and assist in achieving their objectives. Beyond delivering mere data, our team provides a foundation of confidence upon which our clients can build.

CTLGroup provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.