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Method and apparatus for assembling a mixture of sand for concrete, and thus obtained mixture of sand and concrete.
Method and apparatus for assembling a mixture of sand for concrete, and thus obtained mixture of sand and concrete.
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机译:用于将沙子的混合物组装到混凝土中并由此获得沙子和混凝土的混合物的方法和设备。
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摘要
The invention relates to a method and device for composing fine aggregates for concrete, to fine aggregates composed in this way and concrete produced therewith, and also to methods for determining the conductivity ratio of a sand and for measuring viscosity of concrete produced therewith. The invention is based on the insight that the conductivity ratio of a sand, i.e. the electrical conductivity of a mixture of the said sand in a liquid divided by the electrical conductivity of the liquid, is a significant indicator for predicting the viscosity properties of concrete produced using the corresponding sand. Matching the conductivity ratio to an ideal value for the said sand also allows the viscosity to be minimized. The conductivity ratio can be matched, for example, by mixing with another suitable sand grade, in particular a fine sand grade, or altering the salt content.
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