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发明公开
CN105645914A 一种掺加相变材料的磷酸镁水泥 有权

一种掺加相变材料的磷酸镁水泥
摘要：
一种掺加相变材料的磷酸镁水泥，属于建筑材料技术领域，制备出的磷酸镁水泥可用于结构修补及加固技术领域。其包括主要组分和相变组分：(一)主要组分：磷酸镁水泥：70％-85％；石膏：5％-10％；粉煤灰：10％-20％。(二)相变组分的组成与主要组分的质量百分比如下：相变温度在20-25℃的相变材料：5％-10％；相变温度在30-35℃的相变材料：5％-10％；相变温度在35-45℃的相变材料：5％-10％。本发明通过不同相变区间的相变材料在不同温度区间发生相变，吸收磷酸镁水泥水化所放出的热量，减缓反应速率，改善磷酸镁水泥的凝结时间。本发明在保证强度要求的同时其凝结时间也得到了很好的控制，具有很大的应用空间。
摘要（英）：

The invention discloses MPC (magnesium phosphate cement) doped with PCMs (phase-change materials) and belongs to the technical field of building materials. The prepared MPC can be applied to the technical filed of structure repair and reinforcement. The MPC comprises main components and phase-change components, wherein the main components comprise 70%-85% of the MPC, 5%-10% of gypsum and 10%-20% of fly ash; the phase-change components comprise components in percentage by mass as follows: 5%-10% of a PCM at the phase-change temperature of 20-25 DEG C, 5%-10% of a PCM at the phase-change temperature of 30-35 DEG C and 5%-10% of a PCM at the phase-change temperature of 35-45 DEG C. According to phase change of the PCMs in different phase change intervals at different temperature intervals, heat emitted through hydration of the MPC is absorbed, the reaction rate is slowed down, and the setting time of the MPC is improved. The setting time is well controlled while the requirement for strength is met, and the MPC has very large application space.

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