Port Anchors

A stabilization system should not just tie, but should also help bond damaged masonry back together.President, John Wathne P.E.

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. Our anchors come in a wide variety of types and configurations to meet the specific needs of your project..

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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. Our anchors come in a wide variety of types and configurations to meet the specific needs of your project..

Unique Features of the VoidSpan Port Anchor

  • All stainless steel construction — manufactured by Cintec America, LTD.
  • Standard or custom designs to suit geometry, loading, grouting conditions and injection pressures and lengths according to order.
  • CINTEC sock anchors at one or both ends with bearing plates available in lieu of or in addition to the socks
  • Removable threaded rods that can be socketed into the anchors’ outer ends for direct attachment of permanent face plates, or temporary dunnage, if needed, to counter injection pressures and minimize the need for external bracing
  • Double-ended anchors where face plates or dunnage are needed on both faces of the masonry
  • Anchor-shear capacity based upon shear friction “haunch” theory, with the maximum tie capacity provided at the point of best grout compaction and centered around the anchor
  • Hollow or open shank that allows insertion of secondary rods for additional shear capacity, and electric heating wands, if needed for installation during cold weather conditions
  • Economical and efficient design optimized for a 3-foot-by-3-foot pattern when tying and injection bonding inter-wythe collar joints using multiple lifts

Three Types of Anchors


Anchors are defined by series type, capacity and “A”, “B” and “C” dimensions that come from field measurements. We provide length calculation sheets with order forms, and engineering guidelines.

Open Shank Anchors


for collar joint applications that require cleaning, flushing and use of a fine flowable grout (such as VoidSpan PHLc Grout). The standard anchors provide up to 5,000 lb confinement tension and up to 3,000 lb “rolling shear” capacity (even discounting adhesion of the grout).


Rod Shank Anchors


for masonry consolidation and crack bridging with micro-fine, post-tensioning duct type, or fine flowable grouts where cleaning and flushing from the anchor is not required. Our standard anchors provide up to 7,500 lb confinement tension capacity.
Our “HC”-Type anchors, by special order, can provide as much as 100,000 pound tension capacity.


Cintec Presstec Grout


is supplied with each anchor and must be used to fill the Cintec anchor socks. Any non-corrosive, non-metallic and ultra low-shrinkage grout can be used through the VoidSpan anchor port to fill the voids. Compatibility with the parent structure is critical.


Easy to specify

Anchors are defined by series type, capacity and “ A” , “ B” and “ C” dimensions that come from field measurements. We provide length calculation sheets with order forms, and engineering guidelines.