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Controlling secondary efflorescence is a more common problem for contractors who have “inherited” pre-existing concrete.
The mix itself can’t be changed, so factors that affect water movement into and out of the concrete are where steps can be taken.
To meet market demand for quality and quantity, beneficiation is an increasing necessity.
In addition, reclaiming fly ash from disposal in landfills and ponds is becoming more common and often requires beneficiation.
Identifying and minimizing the sources of moisture are the first step.
Extra water in the concrete makes it more porous, weaker, and more susceptible to shrinkage cracking.
Curious how repairing efflorescence plays out in a real-world scenario?
Read this blog from our backlog that details an example of how to repair a concrete floor with efflorescence that was progressively worsening.
This session will describe preliminary reconnaissance of damage due to recent earthquakes and hurricanes.
It will also discuss ways to improve resiliency of man-made structures to minimize devastating effects of natural hazards and to provide guidance for community planning.