Thermal backfill composition method

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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523132, 523400, 523457, 523458, 523459, 523466, 523467, 523443, 524447, 524493, 524496, 524560, 524563, 524601, 524611, 524612, 524430, 524431, 524432, 524433, 524439, 524440, C08L 6300, C08L 6700, C08L 7100

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043616615

ABSTRACT:
A thermally conductive composition comprises an essentially homogeneous mixture of sand or sand-like particulate material with a binder, wherein the binder comprises an organic adhesive having an inorganic fine particle filler therein. The binder is present in at least an amount sufficient to begin to form a binder meniscus between adjacent sand particles, while the filler is present in the binder in an amount which significantly increases the effective thermal conductivity of the composition as compared to the same composition without filler.

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Mitchell et al.: Backfill Materials for Underground Power Cables; EPRI; 6/77.
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Mochinski et al.: Assessment of the Influence of Soil Thermal Resistivity on the Ratings of Distribution Cables; Proc. IEE, vol. 123, No. 1; Jan. 1976.
Farouki; Physical Properties of Granular Materials with Reference to Thermal Resistivity; Highway Research Bulletin, vol. 189, 1960.

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