Our Cementitious Grouts are Economical, Non-Hazardous, and Pozzolan-charged for Exceptional Density and Strength

US Grout

Unique among all cementitious grouts produced in the world today, US GROUT Ultrafine is strengthened and made exceptionally enduring with the same pumice-based pozzolan technology the Romans used in their concrete over 2000 years ago. Developed by the U.S. Department of Energy, US Grout Ultrafine products are typically superior in injectable performance and cured density to any cementitious grout available in the marketplace.

Cementitious US Grouts are widely applicable to various soil typesSTABILIZE SOILS

Fact: it’s particle size and rheology, not viscosity, that determines a grout’s ability to effectively penetrate and properly disperse in fine, dense soils. Designed for job-specific adaptability, US Grout Ultrafine VX, paired with USG-SuperTM (a super p), can work soil-binding magic in a wide range of soil permeation and stabilization projects. [ MORE ]

core sample of microfractures sealed with US Grout UltrafineSEAL MICROFRACTURES

It’s the minuscule particle size of US Grout that is the key to the grout’s ability to deeply penetrate and effectively seal microfractures in rock and concrete structures. US Grout Ultrafine has an average particle size of 3 microns in diameter and will penetrate fractures as small as 6 microns as deep as 3 meters. Standard OPC grouts can’t even come close. [ MORE ]

US Grouts are enhanced with a natural pozzolan to boost cured density, strength and longivityTHE POZZOLANIC CHARGE

Think of the pozzolanic reaction as a molecular reclaimation process: the pumice ignites a powerful reaction within the hydrated cement paste that captures and melds with concrete-weakening Calcium Hydroxide (a by-product of the cement-water reaction), ultimately converting the bad CH into beneficial Calcium Silicate Hydrate (CSH is the binder in concrete). And that additional CSH does what you’d expect... [ MORE ]


Our cementitious grouts are composed of non-hazardous components and are safe to handle and use. Our grouts are also Certified by NSF International as conforming to the requirements of NSF/ANSI Standard 61 - Drinking Water System Components - Health Effects.

  • Made in America: Stable North American supply
  • Stringent quality control and modern plant facilities ensure uniformity
  • Expert support with an international distribution network
  • Customized blends are available
  • Adjustable rheology and set time
  • Generous injectability window
  • Ultrafine particles penetrate smaller fractures and finer-grained soils
  • Low internal cohesion for greater penetration and lower drilling costs
  • Volume stability
  • Composed of non-hazardous materials
  • US Grout is Tested and Certified by NSF International
  • Tested and Certified by NSF International
avanti international grout sales and expertise

822 Bay Star Blvd., Webster, TX 77598


Contact Avanti International:
1 (800) 877.2570
1 (281) 486.5600

US Grout is the ideal Cementitious Grout to:

  • Stabilize and Strengthen Soil and Sand
  • Seal Seepage in Mines, Dams, Tunnels and Sewer Systems
  • Fortify Waste Containment Facilities
  • Squeeze-Grout and Rehabilitate Oil and Gas Wells
  • Form Low-Permeability Grout Curtains