More Than Just a Crush on Rock

As a leader in the field of concrete and cementitious material for almost 100 years, CTLGroup provides trustworthy, timely and cost-effective solutions to any issue involving aggregates.

Clients count on us to help them with aggregate selection, characterization and quality control. The firm's expertise allows us not only to execute virtually any materials test to any standard, but also to develop new approaches and solve complex issues in innovative new ways. Over the years we have completed hundreds of projects involving aggregate testing, consulting, mixture design and innovation.

CTLGroup operates one of the largest privately-owned materials testing laboratories in the U.S. We offer a full range of aggregate testing capabilities under the following accreditations:

  • IAS ISO 17025 accredited
  • AASHTO accredited
  • QMS meets requirements of the U.S. Army Corps of Engineers
  • All CTLGroup physical testing technician personnel are ACI certified at various levels

We operate one of the few laboratories that can provide a comprehensive range of aggregate testing under the necessary standards – all under one roof. This cuts both time and cost for the client because we do not have to outsource aggregate testing. Because of this, we have become the go-to testing firm when time and expertise are of the essence.

CTLGroup is also one of the leading innovators in the field. When the situation calls for it, we develop methods and procedures to solve specific problems for individual clients. One exciting example of this is the set of testing and consulting procedures we have built around the chemical compatibility of admixtures. This allows clients to learn not only the quality of the aggregate, but also how it will react chemically with the other materials to be used in the project.

Whether the project is complex or simple – from petrographic analysis to ready mix optimization – CTLGroup is capable and ready to provide results and solutions for aggregate.