Case Studies

Concrete Science, Inc. Concrete Science, Inc.

BART Tunnel: Cracks, Leakage, and Hidden Risk

Cracking, water leakage, efflorescence, and brown residue at a reinforced concrete tunnel wall raised concerns about embedded steel and the extent of deterioration within the section. This investigation used field testing and exploratory coring to evaluate corrosion risk and help define where further attention was needed.

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NDT, Petrography Marshal Rawlinson NDT, Petrography Marshal Rawlinson

Radiant tubing, Control Joint, and Underlayment Failures

When significant cracking and troublesome slab curling threatened structural integrity at a community college building, a detailed petrographic and structural investigation uncovered surprising causes hidden beneath the surface. Issues ranged from overlooked control joints and excessively thick underlayments to embedded radiant heating tubing—all compounding the slab's distress. Discover how precise forensic analysis and targeted repair strategies not only resolved these hidden challenges but restored durability and safety for the long term.

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