COMPATIBILITY THROUGH TRADITIONAL MATERIALS
VoidSpan Pozzolanic Hydraulic Lime Grouts and Binders contain a blended hydraulic binder and sand, with less than 2% chemical admixtures by weight.
Our formulations contain lime, pozzolan and, in our PHLc products, a very small amount of cement. By combining the forgiving properties of lime with the more rapid, airless cure of a hydraulic binder, we have created more breathable, “softer” materials that are compatible with historic masonry structures, while meeting the logistical demands of today.
Our careful, quantity-controlled blending of lime and pozzolan in just the right proportion allows for complete reaction of the lime, without the residuals that can bleed out of the masonry and cause streaking in non-hydraulic lime applications.
VoidSpan Pozzolanic Hydraulic Lime Grouts and Binders contain no significant chlorides or corrosive materials. The ultra-low 0.06% shrinkage is achieved without the use of chemical shrinkage compensators, which can sometimes cause damage when in contact with embedded metal elements.
High Durability, Breathability and Adhesion
Simple to Mix, Easy to Use
VoidSpan PHLc comes in 50-lb. bags or in recyclable 5-gallon plastic pails, each to be mixed with one gallon of water. It also comes in 3,000lb “Super-sacks”.
VoidSpan PHLc70 comes in 1 and 5 gallon containers to be mixed with 1 part water for 5 to 5.5 parts PHLc70 by volume.
Our grouts are very flowable products that can be placed by gravity feeding, pumping and cylinder injection. They can travel relatively long distances in properly prepared and contained cavities and narrow cracks.
WE WILL HELP MAKE YOUR
PROJECT A STANDOUT SUCCESS
PORT ANCHORS & TIES
The grout-injecting VoidSpan Port Anchor (patent pending) is a stainless steel anchor that can span internal voids to tie masonry together while providing an integral port through which voids can be inspected, cleaned, pre-dampened and grouted. LEARN MORE...
VoidSpan Pozzolanic Hydraulic Lime Grouts and Binders are extremely frost-resistant. For example, in laboratory freeze-thaw tests our PHLc has repeatedly outlasted traditional mortar formulations, with freeze-thaw resistance approaching that of Indiana limestone. LEARN MORE...
CLEANING & INSTALLATION TOOLS
Voidspan provides everything you need for a successful project. Our installation tools, paired with out guides and resources, will help you complete your project. LEARN MORE...
“We are dedicated to the development of new technologies for the sympathetic restoration and stabilization of our historic infrastructure.”
- President, John Wathne P.E.
Learn About Us
The VoidSpan team is here to help you. It is our goal to provide “one-stop shopping” for everything you might require for a successful masonry stabilization or conservation project. We are ever reaching, and ever developing.