Cellular Grout is an ideal material for filling the annular space between the carrier pipe and tunnel and for slipline projects.

Lightweight Cellular Grout has been used very effectively as backfill for lined tunnels. We have used it successfully for decades on projects all over the country.

There are many advantages in using Cellular Grout instead of regular Sand-Cement Grout. Major advantages of Cellular Grout are the considerably lower density, superior fluidity and unique stress-deformation characteristics. The density of lightweight grout is one-third to one-half the weight of regular grout, thus the buoyancy effects of the conduits will be one-third to one-half as much. This greatly reduces the possibility of deflection and flotation of the conduit. With increased fluidity, the Cellular Grout readily flows into irregular voids, requires no consolidation, and improves the pumpability of the mix. With increased fluidity, less pressure is needed to pump the mix, which reduces the risk of collapsing the ducts. The unique stress-deformation characteristics of the cured Cellular Grout allow it to adapt to movement of the confining media without applying large stress and distortions to the carrier pipe.

Midwest Mole is a trained and licensed contractor of cellular grouts to install lightweight grouts for geotechnical fills, abandoned structures, and annulus grouting for sliplining and carrier pipe installations.

At Midwest Mole, we welcome challenges, excel at overcoming obstacles and bring turnkey solutions to every project. Our employees are the best at what they do—committed to the success of your project and your company.