A kind of preparation method of pozzolana mixed material in cement

A kind of preparation method of pozzolana mixed material in cement

  • CN 103,755,167 B
  • Filed: 01/17/2014
  • Issued: 05/22/2018
  • Est. Priority Date: 01/17/2014
  • Status: Active Grant
First Claim
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1. A kind of 1. preparation method of pozzolana mixed material in cement, which is characterized in that the step including order belowSuddenly:

  • (1) admixture contains Na in weathering tufa stone2The quality of O is 3.875~8.6% sodium hydroxide of dry tufa stone, togetherWhen being ground to sieving quasi- with 200 targets in any way, less than 10%, the weathering tufa stone limits the quality of oversizeFor:

    Its main object is mutually micron-sized volcanic glass chip, is secondly a small amount of quartz crystal, due to weathering, there are considerableA variety of clay minerals containing constitution water and intermediary water including kaolinite, illite and montmorillonite;

    Strong Weathering And Leaching causesFine lithology is made to be broken into superfine canescence bulky powder shape, 0.8mm standard screens percent of pass is more than 95%;

    (2) levigate powder calcined in the range of 300~500 DEG C 2~3 it is small when.

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