Engineered to Absorb Stress, Resist Deformation, and Ensure Long-Term Stability in Challenging Geotechnical Environments
Engineered to Absorb Stress, Resist Deformation, and Ensure Long-Term Stability in Challenging Geotechnical Environments
KM Materials specializes in engineering advanced compressible, rebounding grout technology designed for extreme geotechnical environments, including tunnels, fault zones, and seismic ground movement. Our patented KM22 mix design is formulated to absorb stress, resist deformation, and enhance long-term infrastructure stability where traditional grout systems fail.
KM22 is a patent-pending compressible grout material engineered to behave fundamentally differently from conventional cementitious or bentonite grouts. Instead of simply hardening into a rigid filler, KM22 is designed to:
This unique performance is derived from a scientifically engineered blend of 100% recycled crumb rubber and Portland cement, tailored on a project-specific basis to achieve optimal geotechnical response characteristics.
Conventional cement and bentonite grouts are widely used for sealing voids, stabilizing soil, and supporting structural elements. However, these rigid, non-rebounding materials can crack, deform, or degrade under squeezing ground pressures, seismic stresses, and fault creep. These failure mechanisms can compromise long-term performance and lead to costly maintenance or repair.
In contrast, KM22 compressible rebound grout is designed specifically to accommodate geotechnical motion while maintaining continuity of support. This helps protect service life and structural integrity in demanding conditions.
Engineered Absorption & Rebound
KM22 is formulated to actively absorb compressive forces and release energy without rigid failure, offering a significant advantage in seismic and fault-active regions. Testing has shown increased rebound behavior as compressive loads rise, a characteristic not observed in traditional grouts.
Sustainable and Project-Specific
The grout is made from 100% recycled crumb rubber, reducing environmental impact and offering custom mix ratios to suit specific structural requirements, such as load deformation tolerance and rebound response.
Designed Low Compressive Strength
KM22’s engineered low compressive strength (≤ 250 psi by design) allows it to absorb stress rather than transfer it to tunnel walls, linings, or surrounding ground structures, protecting engineered systems over time.
KM22 is optimized for use in projects where ground movement and earth pressures present a challenge for conventional materials:
This positions KM22 as a technical grout choice for engineers, geotechnical designers, and infrastructure specifiers seeking scientifically validated material performance.
KM22 has been reviewed and evaluated through laboratory tests, including compression and rebound behavior, conducted in collaboration with the U.S. Bureau of Reclamation. Detailed testing encompasses:
These data reinforce KM22’s engineered performance advantages over standard grout formulations.
With over 50 combined years of experience in construction materials and geotechnical solutions, KM Materials delivers high-quality, scientifically documented grout systems designed to meet the evolving needs of infrastructure projects in challenging conditions.
Dive deeper into the science behind KM22 and how it performs in real-world conditions through our detailed downloadable documents:
For technical inquiries, project specifications, or material support, reach out to our team:
Email: info@kmmaterials.com
Phone: 412-225-1110
email us: info@kmmaterials.com Phone 412-225-1110