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Upper Peninsula Regional Digitization Center

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  • All fields: grout
(23 results)



Display: 20

    • Grouting

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • Grout was pumped down the grout pipes to the bottom of the aggregate layer. As the grout raised through the voids between the aggregate it displaced the water that was above it. Before the grout ""set"" the pipes were pulled up to a prescribed...
    • Grouting

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • Here the grout plant is moored to one of the cable anchor piers. The grout is pumped through the grout tubes into the voids between the limestone aggregate and raises to the surface forcing the water up and out. (1)
    • Grouting

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • Here the grout plant is moored to one of the cable anchor piers. The grout is pumped through the grout tubes into the voids between the limestone aggregate and raises to the surface forcing the water up and out. (2)
    • Grouting

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • The grout plant is busy making the grout that it will pump down into the aggregate inside the caisson. One of the grout tubes is located on the left.
    • Grouting

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • The grout plant is busy making the grout that it will pump down into the aggregate inside the caisson. One of the grout tubes is located on the left.
    • Grout plant

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • This four story height, marine grout plant was specially designed by the marine contractor for the Mackinac Bridge project. After the aggregate was about 10 feet deep inside the cofferdam, grout made from Portland cement, sand, fly ash, water, and...
    • Anchor pier

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • Here can be seen the rebar sticking out of the coarse aggregate and in the center are a grout pipe and a sounding well. The sounding wells were used to check the depth to the concrete.
    • Aggregate placement

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • Limestone, (Dolomite) from quarries at Drumand Island, MI. about 50 miles to the Northeast, was shipped in self-unloading lake freighters to the site. These vessels carried 12,000 tons per load. Vertical pipes (grout pipes) were installed from...
    • Storm

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • High winds are common in the Straights of Mackinac. Merritt-Chapman & Scott, the foundation contractor had to deal with a variety of weather conditions . Here they are moving the portable grout plant.
    • Tower base

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • Workers screed and level the grout that will become the surface on which the tower base plate will sit. It must be flat and level to support and transfer the 6,500 ton of tower to the pedestal. The bolts support a ""roof"" to keep weather off the...
    • Tower base

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • Workers screed and level the grout that will become the surface on which the tower base plate will sit. It must be flat and level to support and transfer the 6,500 ton of tower to the pedestal. The bolts support a ""roof"" to keep weather off the...
    • Tower base

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • Workers screed and level the grout that will become the surface on which the tower base plate will sit. It must be flat and level to support and transfer the 6,500 ton of tower to the pedestal. The bolts support a ""roof"" to keep weather off the...
    • Grouting

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • Here the foundation contractors ""prepakt"" plant makes continuous batches of grout for the caissons. Materials are delivered to this marine mixing plant by tug and barge
    • Grouting

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • Here the foundation contractors ""prepakt"" plant makes continuous batches of grout for the caissons. Materials are delivered to this marine mixing plant by tug and barge

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