Grouting White Papers

Methods to Control Leaks in Collection Systems

In recent years, federal and state regulations and mandates to reduce the sanitary sewer overflows (SSOs) have resulted in requiring better maintenance and operating practices for wastewater utilities. The EPA, in conjunction with municipal and industry representatives, has developed a framework for a dynamic management approach to collection systems called the Capacity, Management, Operation, and Maintenance (CMOM) Program.

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Test Cell Grouting Research White Paper

In 2016, a group of engineers, contractors and vendors began working on an update to the NASSCO packer injection grouting technical specifications. It was recognized that recent practices in chemical grouting, called Capital Grouting had achieved significant long-term reductions in infiltration.

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Zero Shrinkage of AV-100 Chemical Grout

An investigation was launched to determine how relative humidity varies within the soil environment. Soil undergoes a two-stage process of drying to create a shallow layer of dry soil and a deeper layer of moist, near 100% relative humidity soil below.

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