Full steel slag roller compacted concrete and preparation method thereof
A technology of roller compacted concrete and steel slag, which is applied in the field of metallurgical slag treatment and resource utilization, which can solve the problem of using steel slag and roller compacted concrete without all-round full-size, and not realizing the dual advantages of steel slag gelling and wear-resistant aggregates , did not realize the compensation effect of steel slag concrete dry shrinkage and other issues, to achieve the effect of excellent crushing performance, increase the added value of comprehensive utilization, and save natural resources and energy
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[0020] In order to better explain the present invention, the main content of the present invention is further clarified below in conjunction with specific examples, but the content of the present invention is not limited to the following examples.
[0021] The present invention also provides a method for preparing all-steel slag roller compacted concrete, comprising the following steps:
[0022] 1) The liquid steel slag obtained from converter steelmaking is subjected to high-temperature hot-splashing treatment, and then undergoes a processing process of magnetic separation, screening, and drum sieve water washing to obtain steel slag aggregates for future use; wherein, the mud content is ≤2%. The steel slag aggregate used is produced by the above-mentioned steel slag, the converter steel slag whose particle size is between 4.75 and 19.5mm, and whose density reaches 3.5±0.2g / cm 3 , f-CaO content ≤ 5%, metallic iron content less than 2%, pulverization rate ≤ 1%;
[0023] 2) Ca...
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