Long-afterglow luminous geopolymer concrete

Abstract

The invention discloses long-afterglow luminous geopolymer concrete which comprises the components in parts by mass: 20-30 parts of metakaolin, 20-30 parts of an alkali activator, 30-45 parts of luminous powder, 40-50 parts of glass sand, 60-90 parts of tempered luminous aggregate, 1-2 parts of carbon fibers, 1-3 parts of a mixed additive and 10-20 parts of water. The luminous intensity of the tempered luminous aggregate is greater than or equal to 350 mcd / m<2>, the afterglow time is greater than or equal to 1000 min, and the crushing value is less than or equal to 6%. According to the long-afterglow luminous geopolymer concrete provided by the technical scheme, the luminous effect of the luminous geopolymer concrete can be improved on the premise of ensuring that the luminous geopolymer concrete has good mechanical properties favourably, and meanwhile, the defects in the prior art can be overcome.

Description

technical field [0001] The invention relates to the technical field of luminescent concrete, in particular to a long afterglow luminous geopolymer concrete. Background technique [0002] Concrete is an artificial stone made of cementitious materials, coarse and fine aggregates, water and other admixtures in appropriate proportions. Luminescent concrete refers to mixing luminescent materials into concrete raw materials, and absorbing and storing energy through the luminescent materials under the illumination of the light source. When the light source is removed, the long-lasting luminescent materials will slowly release light energy to achieve the effect of self-luminescence. [0003] In the prior art, the cementitious material of luminescent concrete is generally cement. Luminescent cement concrete has a dense structure. Under the irradiation of light, only a little luminescent material on the surface of the concrete can absorb and emit light. The dense luminescent cement ...

AI Technical Summary

Problems solved by technology

The dense luminescent cement concrete structure prevents light from reaching the interior of the concrete through the surface layer, and stimulates the luminescent material to absorb light. Similarly, the luminescent material cannot emit light through the concrete surface, resulting in most of the luminescent materials being unable to play their role; at the same time, the cement is black. Particles, darker in color, which have the effect of absorbing and blocking the light of luminescent materials

Therefore, based on the above reasons, the luminous brightness and luminous afterglow time of luminous cement concrete cannot be improved.

[0004] Furthermore, if the luminous concrete in the prior art wants to enhance its luminous effect, the amount of luminescent powder added in the concrete raw materials will generally be increased, but if the amount of luminescent powder added is too large, it will cause construction difficulties and pre-destruction of the internal structure of the concrete. Although the luminous effect of luminescent concrete is enhanced, its mechanical properties are weakened

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