PHL PRODUCTS

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.

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VOIDSPAN GROUT & MORTAR PRODUCT GUIDE

Select your job type to narrow down which of our products will help you! Click here for our Downloadable Grout & Mortar Product Guide.


REBUILDING UNIT MASONRY REPOINTING

#200 SERIES PHLc MORTAR BINDER
For most structures with hydraulic lime and low cement/ high lime mortar blends.

#300 SERIES PHLc FINE  POINTING MORTAR
For structures with less than 8mm (5/16”) mortar joint width.

#100 SERIES PHL MORTAR BINDER
For pointing over lime-based bedding mortars, and for use with low strength masonry units and adobe.

#200 SERIES PHLc MORTAR BINDER
For pointing over hydraulic lime and cement-lime bedding mortars, with moderate to high strength masonry units.

#300 SERIES PHLc FINE  POINTING MORTAR
For pointing of joints less than 8 mm (5/16”) wide (butter joints).

#500 SERIES PHLc GRAVITY FEED GROUT
For filling gaps of 10 mm (3/8”) or greater. May be blended with peastone for gaps of 75 mm (3”) or greater.

#600 SERIES PHLc INJECTION GROUT
For filling gaps of 3 mm (1/8”) to 25 mm (1”).

#1000 SERIES EXTEND VACUUM SATURATED EXPANDED SHALE AGGREGATE
For filling gaps of 3 mm (1/8”) to 25 mm (1”).

CRACK REPAIR & RE-BONDING SEPARATED
MASONARY

#300 SERIES PHLc FINE  POINTING MORTAR
For filling gaps between 3 mm (1/8”) and 8 mm (5/16”) wide.

#400 SERIES PHLc70 CRACK FILLER
For filling gaps up to 6 mm (1/4”) wide.

#600 SERIES PHLc INJECTION GROUT
For use with grouting ports and VoidSpan Port Anchors

#500 SERIES PHLc GRAVITY FEED GROUT
For filling gaps of 10 mm (3/8”) or greater. May be blended with peastone for gaps of 75 mm (3”) or greater.

#600 SERIES PHLc INJECTION GROUT
For filling gaps of 3 mm (1/8”) to 25 mm (1”). Gaps down to 1 mm (3/64”) require special procedures.

#500 SERIES PHLc GRAVITY FEED GROUT
For bond line widths down to 2 mm (3/32”) when mixed to a paste.

#600 SERIES PHLc INJECTION GROUT
For bond line widths down to 1 mm (3/64”) when mixed to a paste.

We are dedicated to the development of new technologies for the sympathetic restoration and stabilization of our historic infrastructure.

- President, John Wathne P.E.

High Durability, Breathability and Adhesion

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. Our grouts are more breathable than most cementitious grouts and within close range of most late 19th- century and early-to-mid 20th -century mortars. Our grouts are also more adhesive than cohesive, with a tenacious bond to substrate materials. The intent is to accommodate forced movements sacrificially, rather than through de-bonding or causing damage to the substrate.

Structural Predictability

Even with their lower, more compatible strengths, VoidSpan Hydraulic Lime Grouts are structurally stable and predictable materials. VoidSpan PHLc can be used as a combination void filler and structural adhesive on large-scale applications, and is specifically formulated to support daily three-foot grout lifts with limited bracing. The first three-foot lift is able to support its own weight plus two fluid three-foot lifts above it within two days. VoidSpan PHLc70 has similar mechanical properties but is specifically formulated for smaller scale applications.
Worker feeding Voidspan PHL grout into a column base

VoidSpan CG70 Fine Grout being fed into a column base at the
National Arboretum for the Smithsonian.

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...

PHL PRODUCTS

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.

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