▎ 摘　　要

NOVELTY - A self-leveling heat-conducting cementitious material is prepared using matrix, modifier, crystallization aid, network forming agent and water. The matrix comprises 38-65 %mass magnesium oxide and 6-21 %mass magnesium sulfate with respect to cementitious material. USE - Self-leveling heat-conducting cementitious material used in casting of electrothermal systems (claimed). ADVANTAGE - The self-leveling heat-conducting cementitious material has improved dispersion uniformity of the network forming agent in the liquid phase, and improved heat conducting coefficient of the heat conducting material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the self-leveling heat-conducting cementitious material, which involves (s1) mixing magnesium sulfate and portion of water to obtain magnesium sulfate solution, (s2) mixing a network forming agent, modifier, a portion of magnesium oxide and remaining water to obtain a suspension, (s3) mixing the remaining magnesium oxide and crystallization aid to obtain powder, and (s4) mixing the magnesium sulfate solution, the suspension and the powder.