Cable high-thermal-conductivity backfilling material

• Main Author: LIU JIAN
• Format: Patent
• Language: English
• Published: 07.01.2015
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF NATURAL STONE

The invention discloses a cable high-thermal-conductivity backfilling material which comprises slag stone, calcium oxide, polyvinyl acetate adhesive, water and sodium silicate. The cable high-thermal-conductivity backfilling material is proportionally prepared from the slag stone, calcium oxide, polyvinyl acetate adhesive, water and sodium silicate by a special technique. The cable high-thermal-conductivity backfilling material has the technical characteristics of favorable initial flowability, moderate alkalinity, low bleeding rate and the like before solidifying. After solidifying, the cable high-thermal-conductivity backfilling material has the advantages of high water content, high stability, smaller thermal resistance ratio than soil, favorable heat dissipation property and higher hardness, and can keep the periphery of the cable at lower thermal resistance for a long time, thereby enhancing the current capacity of the cable or lowering the working temperature of the cable conductor. Compared with the cable with the same specification in the prior art, the current capacity is increased by 15-28%, thereby greatly lowering the project investment cost. The cable using the backfilling material has the advantages of low thermal resistance, environment friendliness, no harm or toxicity and long service life, and can protect the filling medium.