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    • 55. 发明授权
    • Permeable cements
    • 透水泥
    • US06883609B2
    • 2005-04-26
    • US10276186
    • 2001-05-11
    • Bruno DrochonPierre Maroy
    • Bruno DrochonPierre Maroy
    • C04B7/52C04B28/02C09K8/46C09K8/473E21B43/02
    • C04B28/02C04B7/527C04B2111/00284C09K8/46C09K8/473C09K8/572Y02W30/92C04B14/28C04B14/308C04B18/082C04B20/0076C04B38/00
    • The present invention concerns a cement slurry with high permeability and good compressive strength, comprising a solid fraction constituted by: 35% to 80% (by volume) of particles with a mean size in the range 100 microns (μ) to 800μ; 0% to 15% (by volume) of particles with a mean particle diameter in the range 0.1 microns to 10 microns; and 10% to 40% (by volume) of particles with a mean particle diameter in the range 20μ to 50μ; a fraction of said-solid particles being constituted by a cement, and preferably a further fraction by self-destructive particles; a liquid fraction in a water/solid ratio in the range 38% to 50% by volume; and a percentage of cells, provided by a gas or a liquid which is not miscible with water, in the range 30% to 60% of the final volume of the slurry.
    • 本发明涉及一种具有高渗透性和良好抗压强度的水泥浆料,其包含由以下组成的固体部分:35%至80%(体积)的平均粒径在100微米至800微米范围内的颗粒; 0%至15%(体积)的平均粒径为0.1微米至10微米的颗粒; 和10〜40%(体积)的平均粒径在20μm〜50μm的范围内的颗粒; 所述固体颗粒的一部分由水泥构成,优选由自毁颗粒构成另外的部分; 水/固体比在38%至50%体积比范围内的液体部分; 和由不与水混溶的气体或液体提供的细胞的百分比在浆液的最终体积的30%至60%的范围内。