EMPLOYEE ACCESS Services Accreditations About Clients Careers Contact Since 1912, Chicago Testing Laboratory has been recognized as the premier resource for testing and inspection of asphalt materials, liquids, aggregates, concrete and soils Delivering expertise and accuracy for over a century Chicago Testing Laboratory (CTL) is Chicagoland’s premier resource for the testing and inspection of construction materials, including: asphalt and asphalt materials, liquids, aggregates, concrete and soils. In addition, CTL provides consulting services in the fields of geotechnical engineering, construction inspection and other specialty areas. We are a full-service provider that can offer you a complete range of testing, inspection, training, consulting and research capabilities in an expanded service area. Learn about our services New investments in the latest technology to ensure efficiency and a quick turnaround CTL is dedicated to meeting your needs with highly qualified laboratory and field personnel. We offer hundreds of years of combined expertise along with an unparalleled depth of professional experience. Our values: leadership, integrity, vision and expertise Organizations nationwide turn to our CTL staff for the quality control and quality assurance of asphalt and asphalt materials, liquids, aggregates, concrete and soils. We offer a best-in-class resource for testing, inspection, training, consulting and research. Our senior staff averages over 25 years of construction materials industry expertise, totaling hundreds of years of combined experience. We are proud to have a rich history contributing to the success of the construction materials industry here in the Midwest and nationwide. CTL history includes over a century of expertise and experience in construction materials. A rich heritage that spans over a century 1912 Founded as the Chicago Paving Laboratory by Lester Kirschbraun, a noted asphalt technologist and holder of many patents on asphaltic products. 1930 Our name was changed to Chicago Testing Laboratory, Inc., and Gene Abson became owner. Mr. Abson was a charter member, one of the founders, and President of the AAPT. He was also the creator of the Abson recovery test, which is still prominent in the industry and is recognized by ASTM as Standard D1856. 1959 Chicago Paper Testing was added as a division of Chicago Testing Lab to support the growing demand for testing paper and paper-related products. Next © 2021 Chicago Testing Laboratory, Inc.