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We Energies Coal Combustion Products ... - The White House

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Figure 4-20 : Maple Avenue roadway and sidewalk located in the village of Sussex and paved with<br />

high-volume fly ash concrete.<br />

Pavement Construction with High-Volume<br />

<strong>We</strong> <strong>Energies</strong> Class C and Class F Fly Ash<br />

Concrete<br />

An existing crushed stone road providing access to an ash landfill was paved<br />

using fly ash concrete. Five different concrete mixtures, 20% and 50% ASTM<br />

C618, Class C fly ash, and 40, 50, and 60% off-spec ASTM C618, Class F fly<br />

ash were used to pave a 6,600 foot (2,012 m) long roadway carrying heavy<br />

truck traffic. A 20-foot wide, 8-inch thick concrete pavement with 1/4-inchper-foot<br />

slope from the centerline to the edge of the roadway was placed over<br />

the existing crushed stone base. <strong>The</strong> pavement was designed to comply with<br />

the State of Wisconsin Standard Specification for Road and Bridge<br />

construction with the exception of using four experimental high-volume fly<br />

ash concrete mixtures. A concrete mix with a minimum 28-day compressive<br />

strength of 3,500 psi was specified. <strong>The</strong> air content of fresh concrete was<br />

specified to be 5 to 7% by volume (30). <strong>The</strong> road was opened to traffic within<br />

10 days of paving completion. It has been providing good service after<br />

several Wisconsin winters.<br />

91 <strong>We</strong> <strong>Energies</strong><br />

<strong>Coal</strong> <strong>Combustion</strong> <strong>Products</strong><br />

Utilization Handbook

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