Full bearing capacity, inside the work window.
Specialty Grouting Services provides airport runway stabilization in Canada — high-bearing-capacity slab support and base stabilization for runways, taxiways, and aprons. Aircraft loads are immense and work windows are short; we use high-density materials engineered to handle dynamic loading, placed inside strict operational timelines.
How do you stabilize a runway or taxiway slab?
By filling the voids beneath it and restoring uniform base support. Grout is injected through small holes drilled in the slab, filling washouts and consolidating weak base material so loads transfer to the ground the way the pavement design assumed. Where slabs have settled, controlled injection can restore profile as support is rebuilt.
Can you work within airside operational windows?
Yes — the work is planned around them. Placement is staged so each night’s or each window’s work is complete and trafficable before operations resume, with housekeeping controls appropriate to an airside environment. We coordinate through your airside access, escort, and permit procedures as the specialty subcontractor.
What materials are used under airfield pavements?
High-density, high-bearing cementitious mixes chosen for rapid strength gain and performance under dynamic aircraft loading. Mix selection is matched to the void condition, the pavement structure, and the reopening time required — and documented so your engineer can verify it.
Frequently Asked Questions
Void extent, pavement type, the length of available work windows, airside access requirements, and mobilization. Short windows mean more mobilizations for the same volume — we plan that honestly up front.
From your investigation data — GPR surveys, coring, deflection testing — plus injected volumes tracked hole by hole during the work, which themselves map where support was missing.
Reopening time is set by mix selection and agreed before work begins. Rapid-strength materials allow same-window handback where operations demand it.
Yes. We execute to specified materials and performance criteria and provide placement records, volumes, and material data for verification.
Highways & TunnelsGrout Pipe & Bulkhead Installations — Highway 407 Culvert ReliningStaged, low-pressure annular grouting of sliplined culverts under Highway 407 — grout pipes and bulkheads installed by our crew for a complete, liner-safe fill.Read the case study
Rail & TransitBox Beam Bridge Girder Grouting — Kipling Avenue, EtobicokeFourteen box-beam girder joints filled with 14,600 litres of 55 MPa non-shrink grout in two days over a live road on the Metrolinx Georgetown corridor.Read the case study
Highways & TunnelsSEM Tunnel Injectable Tubing Injections — Highway 407 & Jane StreetCold joints in a sequential excavation method tunnel sealed through pre-installed injectable tubing, with every joint documented port by port.Read the case studyRestore Bearing Capacity Overnight
Send your pavement investigation data and available windows — we’ll build the placement plan around them.