Chicago Testing Laboratories

Chicago Testing Laboratory (CTL), founded in 1912, has established itself as a leading resource for testing and inspection of construction materials, including asphalt, aggregates, concrete, and soils. With over a century of expertise, CTL provides comprehensive consulting services in geotechnical engineering and construction inspection, supported by highly qualified personnel and state-of-the-art technology.

Throughout its rich history, CTL has played a pivotal role in the construction materials industry, evidenced by innovations such as the Abson recovery test and its active involvement in the development of testing standards. The laboratory's capabilities continue to expand, offering a full suite of testing, inspection, training, consulting, and research services to organizations nationwide.

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