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Super-high performance concrete decorative plate and preparation method thereof

An ultra-high-performance concrete technology, applied in the field of concrete materials, can solve the problems of not being suitable for mass production, trouble, and affecting the decoration effect, and achieve the effects of avoiding uneven mixing, improving the dispersion state, and optimizing the preparation method

Inactive Publication Date: 2018-01-09
CHINA MINGSHENG DRAWIN TECH INVESTMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Affect the decorative effect
The usual method is to grind the pigment and then add it to UHPC for stirring, but this method is cumbersome and not suitable for mass production, nor is it suitable for the production of UHPC hanging boards when there are many kinds of pigments.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The ultra-high performance concrete decorative panel is made from the following raw materials calculated by weight: 700 parts of cement, 100 parts of silica fume, 90 parts of fly ash; 700 parts of 20-40 mesh river sand, 300 parts of 40-70 mesh river sand , 120 parts of 325 mesh river sand; 80 parts of admixture, 11 parts of pigment, 0.06 part of wetting and dispersing agent, 0.5 part of stabilizer, 100 parts of water, and 80 parts of PVA fiber.

[0030] The specific preparation method is as follows: (1) put the above-mentioned pigment, silica fume, river sand of 20-40 mesh, and river sand of 40-70 mesh into the mixer for 2 minutes; (2) put the above-mentioned cement, fly ash, 325 Mix river sand and fibers with the mixture in step (1) until evenly mixed; (3) add above-mentioned stabilizer and wetting dispersant to water and admixture, and stir evenly; (4) mix step The mixture in (3) and the mixture in step (2) are mixed and stirred until the mixture is evenly mixed, and ...

Embodiment 2

[0032] The ultra-high performance concrete decorative panel is made of the following raw materials calculated by weight: 720 parts of white cement, 150 parts of mineral powder; 720 parts of 20-40 mesh quartz sand, 310 parts of 40-70 mesh quartz sand, 325 mesh quartz sand 150 parts; 90 parts of admixture, 8 parts of pigment, 0.07 part of wetting and dispersing agent, 0.6 part of stabilizer, 105 parts of water; 80 parts of PVA fiber.

[0033] The specific preparation method is as follows: (1) put the above-mentioned pigment, 20-40 mesh quartz sand, and 40-70 mesh quartz sand into a mixer for 2 minutes; (2) put the above-mentioned cement, mineral powder, 325 mesh quartz sand and The fiber is mixed with the mixture in step (1) until it is evenly mixed; (3) the above-mentioned stabilizer and wetting and dispersing agent are added to the water and the admixture, and stirred evenly; (4) the mixture in step (3) The mixture is mixed with the mixture in step (2) until the mixture is eve...

Embodiment 3

[0035] The ultra-high performance concrete decorative panel is made of the following raw materials calculated by weight: 800 parts of ordinary silicon cement, 50 parts of silica fume, 150 parts of fly ash; 500 parts of 20-40 mesh river sand, 40-70 mesh river sand 400 parts, 100 parts of 325 mesh river sand; 100 parts of admixture, 20 parts of pigment, 0.1 part of wetting and dispersing agent, 0.8 part of stabilizer, 130 parts of water; 120 parts of steel fiber.

[0036] The specific preparation method is the same as Example 1 except that the stirring time is 5min in the step (1).

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Abstract

The invention relates to a concrete material, in particular to a super-high performance concrete decorative plate and a preparation method thereof. The super-high performance concrete decorative plateis prepared from the following raw materials in parts by weight: cementitious materials, aggregates, auxiliaries, water, and fibers; the auxiliaries are prepared from at least the following components in parts by weight: 60 to 100 parts of additives, 0.5 to 20 parts of pigments, 0.01 to 0.1 part of wetting and dispersing agent, and 0.3 to 0.8 part of stabilizer; and the cementitious materials areprepared from at least 600 to 900 parts of cement in parts by weight. According to the super-high performance concrete decorative plate, the use of the wetting and dispersing agent effectively improves a dispersion state of the pigments in liquid, ensures stable dispersion of the pigments, and avoids a phenomenon of uneven mixing. Meanwhile, the stabilizer can enable the dispersed inorganic pigments to be uniformly and stably suspended in UHPC slurry, and in particular to be stably suspended in high-flow UHPC slurry, even if bleeding phenomenon occurs accidentally in a forming process of theslurry, the phenomena of floating color and dazzling of the pigments and the like are not generated.

Description

technical field [0001] The invention relates to concrete materials, in particular to an ultra-high performance concrete decorative board and a preparation method thereof. Background technique [0002] Ultra-high-performance concrete (hereinafter referred to as UHPC) has ultra-high mechanical strength and excellent weather resistance, and has become the most innovative cement-based engineering material in the past three decades. Using UHPC for exterior wall decoration can greatly improve the "coating" of buildings. "The lifespan of the building is the same as that of the building. At present, few or no enterprises in China use UHPC as building exterior wall hanging panels, but many large foreign companies such as Lafarge in France and Taktl in the United States have carried out decorative applications of UHPC, among which Taktl has realized UHPC automated production and successful commercial application. UHPC as building exterior wall decoration can make up for many shortco...

Claims

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Application Information

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IPC IPC(8): C04B28/04
Inventor 周全邱灿萍
Owner CHINA MINGSHENG DRAWIN TECH INVESTMENT CO LTD
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