Avanti-International-LogoAs of this year, US Grout’s Ultrafine SD and Ultrafine ND Cementitious Grouts — solely distributed by Avanti — are now certified by NSF International as conforming to the requirements of NSF/ANSI Standard 61 – Drinking Water System Components – Health Effects. In other words, Ultrafine SD and ND are certified for use in contact with potable water.

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Unique among all cementitious grouts produced in the world today, US Grout’s cementitious grouts are American made, strengthened and made exceptionally enduring with the same pumice based Pozzolan technology the Romans used in their concrete more than 2,000 years ago.

Developed by the U.S. Department of Energy (DOE), Ultrafine is typically superior in injectable performance, and densifies more than any cementitious grout available in the marketplace. With an average particle size of 3 microns in diameter, Ultrafine is composed of a finely ground mixture of Portland cement, pumice and dispersant to penetrate fractures as small as six microns and as deep as 3 m.

Cement grouts are used in a wide variety of construction, ranging from new construction to rehabilitation. Ultrafine cements are typically used on large-scale projects requiring significant volumes of grout to be injected.

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Ultrafine Cement is ideal for:

• Stabilizing and strengthening soil and sand
• Sealing seepages in mines, dams, tunnels and sewer systems
• Fortifying waste containment facilities
• Squeeze-grouting and rehabilitating oil and gas wells
• Forming low-permeability grout curtains



For more than 20 years, US Grout and Avanti have partnered to bring the grouting community patented pumice-Pozzolan based Ultrafine and Microfine Cement. Based in Malad City, Idaho, US Grout, an affiliate of Hess Pumice Products, uses ancient Roman technologies with modern refinement science to create sustainable and superior cementitious grout performance.

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Avanti is the only full-service provider and most experienced producer of high quality chemical and cement grouts in the United States.

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