| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to production of construction materials, particularly, to production of high-strength plasticised cements and concrete and for recovery of the properties of cements that los their activity. Proposed method consists in combined grinding of initial cement with super plasticiser. Note here that, first, cement and super plasticiser are subjected to impact activation at aerodynamic device at acceleration of 35-40 g and frequency of 20000-25000 impact/second. Note also that amount of super plasticiser makes 10-15% of cement bulk. Then, produced nano-modifier in amount of 2-4% of cement bulk is mixed with initial cement in the sinter mixer. Invention covers the device to this end including activation chamber, mixing chamber loader ad unloaders. Note here that activation chamber features aerodynamic design while mixing chamber is equipped with the main and auxiliary sinter mixers. Loader-unloader inlet is connected with mixing chamber outlet is connected with activation chamber.EFFECT: lower power consumption.8 cl, 2 dwg, 4 tbl |
