The geotechnical needs of DOTs and other agencies responsible for roads and bridges are vast. Issues include: Culvert repair Soil stabilization Void filling Concrete slab lifting Sinkhole remediation Slope control Slough control in tunneling
Protecting concrete usually means shielding it from the elements of nature or from harsh manmade chemicals. But it’s not just concrete that needs such protection. Corrugated metal pipe, steel surfaces, material hoppers, rail cars and masonry all can come in contact with corrosive or abrasive materials or harsh conditions.
The terms slab jacking and mud jacking have defined the act of raising sunken concrete for decades. Using traditional methods with cement-based materials can mean varying results and degrees of precision. Fracturing and overlifting of slabs can occur.
There is an alternative. Injecting structural polyurethane foam into the voids beneath settling or rocking concrete slabs can stabilize them without excavation and added weight. You can lift slabs back to their original position using our Precision Lift products.
Benefits of chemical grouting for slab lifting and stabilization:
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Resources for slab lifting and stabilization: