Grout/grouting systems

Rehabilitating sanitary sewer laterals was the subject of a recent series of articles that focused on legal issues regarding ownership of laterals and the emergence of trenchless methods for lateral rehabilitation.

However, another key element in dealing with laterals involves point repairs that effectively address inflow and infiltration (I&I) problems that are structurally sound and do not require rehabilitation.

Jeff Griffin, Senior Editor

Grouts have a multitude of uses for many types of construction.

For utility construction, grouts are most often thought of for sealing leaks and joints in water and sewer pipe infrastructure, manhole rehabilitation and filling annular space between pipes and surrounding structures.

C. Vipulanadan, PhD, P.E., professor of Civil Engineering, director of CIGMAT and the Texas Hurricane Center for THC-IT

The Center for Innovative Grouting Materials and Technology (CIGMAT) Research Center was established in 1994 at the University of Houston, Houston TX. CIGMAT’s goals are to foster improved understanding of grouting and coating materials under various applications. Also of interest are other competing and complementary materials and technologies to grouting and coatings used in the construction and rehabilitation of civil infrastructure and offshore pipelines.

Traci Read, Senior Editor

Most sewer infiltration enters structurally sound sewer systems through joints, manholes, service connections and the first few feet of the service lateral. This infiltration adds to treatment costs and increases the risk of sanitary sewer overflows (SSOs). A proven and economical way to permanently stop these leaks is with chemical grout.

Daniel Magill of Avanti demonstrates a number of urethane, latex and gel grouts used for sealing breaches and preventing infiltration in water, sewer and stormwater systems—fast curing and very fun to play with.

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LMK demonstrates in the Rehab Zone.

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Early attendees at the networking reception sponsored by TT Technologies, Connectra Fusion and DCI.

The Center for Innovative Grouting Materials and Technology (CIGMAT) and the Department of Civil and Environmental Engineering hosted a one-day conference and exhibition on “Construction, Geotechnical and Flooding Issues in Houston & Other Major Cities” at the University of Houston on March 6.

Effective March 1,2009, Multiquip Inc. has become the exclusive distributor of EZ Grout equipment in the United States and Mexico.

Parson’s Turn-key Manhole Rehabilitation System allows contractors to load up product in the morning and not have to return to the shop until the end of the day.

For 25 years Logiball has designed and manufactured equipment for the trenchless rehabilitation of sewers.

Grouts are used to fill voids and create sub-grade grout barriers in earthen dams, coastal seawalls, underground vaults and tunnel boring operations.

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