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Ash Grove Resources, L.L.C. supplies Ash Grove Durabase® CKD; to the construction industry. In this section, we will explain how this product is utilized in other applications today.

Application 1 - Recycling Hot Mix Pavements

Many state departments of transportation (DOT's) and other entities are charged with rehabilitating existing asphalt pavements, whether streets or parking lots. With limited funds and unlimited needs, recycling of existing pavements is an economical choice.

Recycling of pavements can be accomplished by pulverizing existing hot mix pavements and granular bases and then adding Ash Grove Durabase® CKD; to stabilize the materials and thus produce an acceptably stabilized base section. Then, a new hot mix wearing surface is put down on top of it.

Test sections have shown that the recycling process can provide a stabilized section having twice the structural capacity of a crushed aggregate base. Due to the higher structural capacity of the recycled section, the thickness of the wearing surface can be reduced, proving an even greater project savings.

Application 2 - Structural Fill

As the lack of supply and increased cost in virgin fill materials has occurred, so has the rise in usage of Ash Grove Durabase® CKD; in structural fills. Common application includes building sites, building foundations, levees or dykes, highway embankments, railways, bridges - any project which needs a compacted, stable fill section.

Stabilizing with Ash Grove Durabase® CKD; can allow the use of steeper embankment slopes. As with other applications, control of moisture contents and compaction delay is required to achieve the full potential benefit of the stabilization process.

Application 3 - Aggregate Base Stabilization

Stabilization with Ash Grove Durabase® CKD; can be a cost effective solution for stabilizing even poor quality aggregates. In this application, the Ash Grove Durabase® CKD; serves as a cementing material increasing the strength of compacted sections. With today's dwindling supply of high quality aggregates, changing environmental regulations and rising transportation costs, stabilization with Ash Grove Durabase® CKD; can provide a more economical solution. The aggregate when fully cemented by the CKD has greater strength while significantly improving durability.

Specific application specifications and timely mixing and compaction methods are required to achieve the best success with this application.

Application 4 - Pavement Subbases

Life cycle costs analysis of pavement design has demonstrated that stabilizing pavement subgrade can significantly reduce overall pavement costs. To achieve maximum strengthening, soils from the site must be tested in the lab. Laboratory compaction tests are required to define the optimum Ash Grove Durabase® CKD; content and to establish optimum moisture contents to achieve the desired degrees of stabilization. Moisture content at the time of compaction significantly influences the strengths achieved and optimum moisture to achieve maximum strength must be defined prior to construction. Ash Grove Durabase® CKD; is then applied, thoroughly mixed and water is added until the specified moisture content is achieved. Compaction should begin immediately after mixing and moisture conditioning. Field testing occurs throughout this process to insure proper compaction moisture control has actually been achieved.

Curing - protection against too rapid drying of the stabilized soil - occurs over the next three days at a minimum. A constant sprinkling of water over the treated area will help in the curing process as moisture is required to complete the hydration reaction. An alternative is to cover the treated soil with an additional layer of untreated soil. This is normally about a two-inch (2") thick layer placed on top of the treated soil.