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 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
Prime Flex 910 is a hydrophobic single-component polyurethane resin with a super low viscosity (35-50 cps) that reacts with moisture when injected into soil forming a rock hard, water-tight mass. 910 is used to stabilize loose soil or sand (permeation grouting), stop underground water flows and seal leaking seawalls. It requires the use of Prime Kat or Kick Fast catalyst.
• Inter-County Connector – Montgomery/Prince Georges County, MD
• Naval Academy – Annapolis, MD
• Ohio Department of Transportation – Columbus, OH
When cured, Prime Flex 910 exhibits a tensile strength (ASTM D3574) of 23 p.s.i., tensile elongation (ASTM D3574) of 3%, zero shrinkage and a compressive strength (with fine sand) (ASTM D695) of 745 p.s.i.