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发明公开
CN104710132A 一种水泥水化速率调控材料及其制备方法与应用 无效 - 驳回 复审申请

一种水泥水化速率调控材料及其制备方法与应用
摘要：
本发明提供的一种水泥水化速率调控材料，所述水泥水化速率调控材料为疏水改性剂改性的糊精；疏水改性剂的质量为糊精质量的0.5-55％，优选1-25％，更优选2-15％。该水泥水化调控材料制备工艺简单、成本低廉，其对水泥水化速率调控性能相对于现有技术具有很大提升。同时，该水化速率调控材料对水泥的水化的影响不同于传统小分子缓凝剂，该调控材料对水化的诱导期影响较小甚至没有影响，但却能大幅的降低加速期及减速期的水化速率，而传统小分子缓凝剂主要是延长水泥水化诱导期，而对水泥水化加速期及减速期的水化速率基本无影响。
摘要（英）：

The invention provides a cement hydration rate regulating and control material which is a hydrophobic modifier modified dextrin; the mass of a hydrophobic modifier is 0.5-55% of the mass of dextrin, preferably 1%-25%, and more preferably 2-15%. The cement hydration regulating and control material is simple in preparation process and low in cost, and has the regulating and control performance of the cement hydration rate greatly improved relative to the prior art. At the same time, the hydration rate regulating and control material has the influence on cement hydration different from a traditional small-molecular retarder, has little or even no influence on the hydration induction period, but can greatly reduce the hydration rates of an acceleration period and a deceleration period, while the traditional small-molecular retarder is mainly used for prolonging the cement hydration induction period but basically has no influence on the hydration rates of the cement hydration acceleration period and the deceleration period.

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