Fair-faced concrete mix proportion design method and related fair-faced concrete

Abstract

The invention provides a fair-faced concrete mix proportion design method.The method includes: naturally stacking stones to obtain a stone mass m1, and closely filling the stones with sand to obtain a sand mass m2; determining a water-binder ratio according to a strength design theory, preparing slurry according to the proportion of each binder material, and measuring density of the slurry; calculating superficial areas of the sand and the stones and a coating thickness of the pure slurry to obtain a volume (including sand volume below 0.315mm) of the pure slurry, comparing the sum of the volume of the pure slurry, the sand volume above 0.315mm and the stone volume with a unit volume to regulate quantity of the sand and the pure slurry to make the total volume equal to the unit volume; subtracting the sand volume below 0.315 from the volume of the pure slurry to obtain the volume of the slurry; calculating the mass of the slurry and each binder material and water consumption; finally working out a fair-faced concrete mix proportion.The designed fair-faced concrete can meet design requirements of the fair-faced concrete, and ingenious design, simplicity and convenience in operation and suitableness for large-scale popularization and application are realized.

Description

technical field [0001] The invention relates to the technical field of building materials, more specifically, to the technical field of concrete mix ratio design, in particular to a method for designing the mix ratio of fair-faced concrete and related fair-faced concrete. Background technique [0002] Fair-faced concrete, also known as decorative concrete, gets its name because of its great decorative effect. It belongs to one-time pouring molding, without any external decoration, directly adopts the natural surface effect of concrete as the veneer, which can save the traditional plastering, veneering and other whitewashing processes, so it is different from ordinary concrete, with smooth surface, uniform color, The edges and corners are clear, without damage and pollution, and only one or two layers of transparent protective agent are applied on the surface, which looks very natural and dignified. [0003] However, there is currently no standard method for the mix design o...

AI Technical Summary

Problems solved by technology

This will easily lead to the failure of the designed fair-faced concrete to meet the design requirements of fair-faced concrete, and the natural surface effect of cast-in-place concrete cannot be used as a finish, and the traditional plastering and veneering processes cannot be omitted.

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