CONSTRUCTION CHEMICAL COMPOSITION FOR TILE MORTAR
    1.
    发明申请
    CONSTRUCTION CHEMICAL COMPOSITION FOR TILE MORTAR 审中-公开
    建筑化学成分

    公开(公告)号:WO2016097181A1

    公开(公告)日:2016-06-23

    申请号:PCT/EP2015/080285

    申请日:2015-12-17

    Applicant: BASF SE

    Abstract: Construction chemical composition for tile mortar The present invention relates to a construction chemical composition applicable as fast setting floor and wall tile mortar exhibiting the pull-off strength values of at least 0,5 MPa after 6h as required by industrial norm DIN EN 12004 for fast setting cementitious tile adhesives ("F" classification). The composition comprises - preferably 25 - 45 wt% Portland cement, preferably free of fast-hardening aluminate cement - preferably 0,5 - 1 wt% hardening accelerator comprising calcium-silicate-hydrate CSH, preferably in combination with 0,5 - 2,5 wt% calcium salt, - preferably 1 - 5 wt% latex powder with a molecular weight of at least 500.000 g/mol - preferably 0,1 - 0,5 wt% water retention agent selected from at least cellulose ether - optionally rheology modifier - and the rest sand and CaCO3 filler. Although the composition is based on Portland cement it has a pull-off strength after 6h meeting the DIN requirements and can therefore be used as a fast setting tile mortar. Its properties do not depend on the quality of the Portland cement and due to the substitution of aluminate cement, it can be provided at overall low cost.

    Abstract translation: 瓦片砂浆的施工化学成分技术领域本发明涉及适用于快速固化地板和墙砖砂浆的施工化学成分,其在6h以上显示出至少0.5MPa的脱模强度值,根据工业标准DIN EN 12004要求,快速 设置水泥砖粘合剂(“F”分类)。 该组合物包含 - 优选25-45wt%的波特兰水泥,优选不含快硬硬化铝酸盐水泥 - 优选0.5-1wt%硬化促进剂,其包含硅酸钙 - 水合物CSH,优选与0.5-2, 5重量%钙盐,优选1-5重量%的分子量为至少500.000克/摩尔优选0.1至0.5重量%的保水剂的胶乳粉末,至少选自纤维素醚 - 任选的流变改性剂 - 和其余的沙子和CaCO3填料。 虽然该组合物是基于波特兰水泥,但符合DIN要求的6h后具有脱落强度,因此可用作快速定型砖砂浆。 其性能不依赖于波特兰水泥的质量,而且由于铝酸盐水泥的替代,可以以低成本提供。

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