Internal Strengthening of Historic Clay Brick Masonry Pump Houses in New Orleans
IBMAC Paper - US Version
Masonry Evaluation and Repair 2012
Internal Strengthening of Historic Clay Brick Masonry
MSI Presentation - Association for Preservation Technology Conference in Wroclaw, Poland
MSI Lecture - Tongji University in China
Lecture on Historic Masonry: Diagnostics and Repair
MSI - GRUENSTARK Masonry Fabric Anchor System Datasheet
MSI - Compatible Injected Fill (CIF) Datasheet
Are there masonry structures simply too deteriorated to be saved?
We have stabilized masonry structures that are out-of-plumb by as much as fourteen inches! We have stabilized walls from which you could literally remove the brick with your hands. Generally speaking, if we can keep the wall stable and safe while we work, we can stabilize the wall.
How about Masonry Solutions' fabric anchoring systems? How do they work?
Fabric anchoring systems use expansive sock containments around an anchor in order to allow for targeted injection and resulting bond to the surrounding masonry. These anchoring systems create a mechanical lock in addition to material bond, giving the most security possible. Masonry Solutions International has been working with fabric anchorage systems for nearly 20 years and continues to develop new and exciting products for heritage masonry anchoring.
Your website mentions wall injection as a method of preventing moisture infiltration. Isn't a good tuck pointing job an acceptable remedy for a leaking masonry wall?
Certainly, if there is a good barrier of masonry behind the tuck pointing, normal tuck pointing is acceptable. Of course, if tuck pointing is done properly per the Preservation Briefs it is not an inexpensive proposition. We have seen major tuck pointing efforts that were very expensive, and at the end, the owner still needed to inject the wall to stop the water infiltration. Conversely, if the existing joints are fair to good, injection may heal the wall and stop the water without tuck pointing. Let me leave you with this; putting a ½” to an inch of mortar, with questionable bond strength and some shrinkage may reduce some water infiltration temporarily, but it is similar to painting your tooth when you experience a cavity. Eventually, the tooth will require correct repair.