Iron tailing micro-powder mortar dry powder for building mortar and preparation method thereof
A technology of mortar dry powder and iron tailings, which is applied in the field of building materials, can solve the problems of low fly ash and slag content, high mortar compression ratio, and low flexural strength, and achieve energy saving, simple production process, and high production efficiency. The effect of low cost and energy consumption
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[0017] In order to further describe the present invention in detail, it will be described below in conjunction with the accompanying drawings and specific embodiments. In particular, the following examples are only for explanation of the present invention and the present invention is not limited to the following examples.
[0018] The present invention is a dry powder of iron tailings micropowder mortar for construction mortar, which is characterized in that: it includes the powder obtained by mixing the raw materials according to the following weight percentages and then homogenizing them twice: iron tailings micropowder: 70%-85%; P. O42.5R cement: 15%-30%; active stimulant: 0.1%-0.15%; the fineness of the iron tailings micropowder is 45μm square hole sieve not more than 5%, and the specific surface area is more than 500m 2 / kg; the cement is at least one of ordinary portland cement, aluminate cement, and sulphoaluminate cement of label 42.5R; Surface area greater than 360m ...
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