The appropriate and specified use of construction materials on a project site is of the utmost importance for long term performance and success of any construction project. Poor workmanship, material quality or installation practices may lead to costly and time-consuming failure repairs and maintenance of important assets.

SUMMIT’s┬áConstruction Material Testing (CMT) group is our largest department and is acutely aware of the importance of the proper use and practices for a wide-range of construction materials. Our CMT group is equipped with an extensive array of material testing equipment and our field technicians and professional staff is qualified to test construction materials and provide forensic assistance on previously installed materials.


Field sampling and testing of fill materials placed for support of structural site components. Typically includes field density testing, field proctor testing, moisture determination, observations of lift thickness and verification of compactive effort and soil types used.

Typically includes observations, sampling and testing of soils (disturbed and undisturbed) for determination of engineering properties related to bearing capacity (foundation support) for proposed structures.

Compaction testing, rolling patterns, temperature, thickness verification of aphaltic concrete (asphalt) materials for roadways, drives and parking areas.

Certified SCDOT and NCDOT testing and observations of asphalt placement operations

Sampling and testing of fresh concrete for verification of material properties including unit weight, slump, air content and temperature typically performed during placement on a project site.

Monitoring of segmental retaining wall construction including drainage, geo-composite installation, material properties and other key information utilized for certification of construction practices for the wall structure.

Determination of quantities of borrow soils, unsuitable soil, stone, asphalt, rock and other materials typically for payment verification or estimating purposes.

Includes the evaluation of existing soil conditions and recommendations for remediation or suitability for proposed construction.

Includes testing and thickness verification for aggregate base course materials (stone base) during roadway, drive and parking construction.

Utilized to determine the required aggregate, cement, water, admixtures and/or additives for concrete products based on their required use.

Preparation of mix designs and recommendations for chemical stabilization utilizing lime and cement based on actual site conditions and project requirements.

Non-destructive and destructive verification of specified thickness of paints and coatings to protect surface materials from corrosion, damage or enhance appearance.

Verification that proper vapor transmissions/emissions have ceased to allow for the installation of various floor coverings and sealants.

Verification of floor flatness and levelness for concrete slabs.