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AV-100 Chemical Grout Files

Magazine Article: Re-Emergence of Chemical Grout

Published Year: 1995

  • Recent studies and over 40 years of experience indicate that America's first trenchless technology is still the best, most effective, long-term defense against infiltration.

Magazine Article: 72-Inch Pipe Stabilized With Chemical Grout

Published Year: 1994

  • At a paper mill in Alabama, a weakened joint was found in a six foot diameter pipe carrying more than two millions gallons per hour of effluent.

Magazine Article: Avanti Leads in Industry Development & Education

Published Year: 1994

  • Trenchless Technology - June 1994 - Avanti leads in industry development and education: In 1978 when Avanti International was formed by four rehab contracting companies, David Magill was hired as its first employee and the company's first president.

Magazine Article: Miami-Dade Grouting Program Running Full Steam Ahead

Published Year: 1993

  • Sixteen hours a day, five days a week, almost two thousand hours a month the Miami-Dade grouting crews are locating and chemically sealing leaking joints in the sewer line collection system.

Complete U.S. Department of Energy Report Regarding AV-100 Longevity

Published Year: 1987

  • Complete U.S. Department of Energy Report Regarding AV-100 Longevity

Case Study: Blocking Artesian Flows

Published Year: 1960

  • In Oregon's Deschutes River canyon, a 440-foot dam sits on Pelton basalt formed by lava flows. Springs emerged from lava contacts, necessitating closure beneath the dam. Deschutes sediments were exposed on the dam abutments, which made using cement grout

Case Study: Bracing Crumbling Dock

Published Year: 1960

  • An eight-year-old loading and mooring dock, 1600 feet long, at Sept Iles was showing distress. It had been constructed by driving sheet piling then placing a heavy rockfill as a base.

Case Study: Consolidating Weakly Cemented Sandstone During Cross-Cut Construction

Published Year: 1960

  • Problem: At Seafield Colliery, three cross-cuts, 16-17 feet wide by 12- feet high, were being driven horizontally through the Millstone Grit series, which contained many weakly cemented and porous sandstones.

Case Study: Constructing Grout Curtain for Dam

Published Year: 1960

  • The Columbia River Valley at the dam site is a wide canyon dividing the Columbia Plateau on the east from the Entiat Mountains on the west.

Case Study: Controlling Seepage During Construction of Underground Missile Bases

Published Year: 1960

  • Problem: With construction still in progress, numerous leaks appeared at the joints and bolt holes of corrugated steel-pipe tunnels connecting missile silos to control centers. Welding and sealing compounds failed to stop seepage.

Case Study: Controlling Seepage During Shaft Sinking

Published Year: 1960

  • In order to reach newly discovered lead deposits, St. Joseph Leak Company had to sink large diameter deep shafts through permeable Lamotte Sandstone carrying ground water at high pressures.

Case Study: Cutting Water Flow in Colliery Drift

Published Year: 1960

  • Problem: In driving two drifts for this new project, several badly fissured water-bearing rock zones were intercepted. Upon completion, water at the rate of several thousand gallons per hour was entering the drifts from a subterranean water table.

Case Study: Grouting Foundation for Dam Construction

Published Year: 1960

  • A 300-foot rockfill dam with a central impervious core and a crest length of 870 feet was being built on a generally sound granite foundation, except on the upper right abutment where the rock was completely weathered to an in situ soil.

Case Study: Grouting in Fissured Rock

Published Year: 1960

  • Pumping costs at Cedar Bay Mine were becoming excessive, as new drifts were opened and total seepage into the mine increased.

Case Study: Grouting Jointed Rock in Dam Foundation

Published Year: 1960

  • Problem: Severe weathering along calcite veins, joints, and cracks, as well as the presence of three fault zones, have formed seepage channels which could endanger the performance of the dam.