For optimum performance, repair materials or coatings must form a strong bond with the concrete substrate. But how can you accurately measure this bond strength in the field?
Surface voids, such as bug holes, form-tie holes, and honeycomb, are a fact of life in cast-in-place concrete construction. Depending on project specifications, they may need to be repaired.
Prepackaged concrete repair materials come with data sheets listing the material's performance in a variety of lab tests, which presumably attest to the material's quality.
Since its introduction to the construction industry in the 1950s, shotcreting has grown into an important and widely used concrete placement technique, and advances in materials, equipment, and procedures continue to expand its applications.
Foundations settle for many reasons, including poorly compacted fill, poor drainage, or soil dessication. For residential and light commercial applications, steel underpinning systems are viable solutions for stabilizing and raising sunken foundations.
