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Large fair-faced mirror surface concrete member and manufacturing method thereof

A technology of fair-faced concrete and a manufacturing method, which is applied in the directions of manufacturing tools and ceramic molding machines, etc., can solve problems such as the limitation of the application range of fair-faced concrete

Inactive Publication Date: 2020-10-23
SHANGHAI CONSTR BUILDING MATERIALS TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing fair-faced concrete production technology has many deficiencies in the molding of large-area clear-faced facings and the color control of fair-faced concrete, resulting in relatively large limitations in the scope of application of fair-faced concrete.

Method used

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  • Large fair-faced mirror surface concrete member and manufacturing method thereof
  • Large fair-faced mirror surface concrete member and manufacturing method thereof
  • Large fair-faced mirror surface concrete member and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment is the pouring method of traditional clear-water mirror concrete components, and its concrete is common clear-water concrete. The formula and proportion of clear-water concrete are shown in Table 1. The mold adopts steel mold and BASF8511 clear-water release agent, and clear-water concrete is stirred by a mixing building. , The vibrating rod is used for vibrating during the pouring process.

[0031] Table 1. Fair-faced concrete mix ratio

[0032]

[0033] The clear-water mirror-finish concrete member formed in Example 1 is observed to have a large color difference in the finish, and there are many air bubbles, the surface of the finish is pitted and the color is dark, and there are residual traces of vibrating rods in the finish.

Embodiment 2

[0035] This embodiment is improved on the basis of Example 1, and the surface of the steel mold is replaced with clear water mold release agent sprayed with clear water formwork paint on the surface of the steel mold. For projects with strict requirements on formwork protection and concrete appearance quality, clear water formwork paint is sprayed on the bottom form. The formula of clear water concrete, the mixing method of clear water concrete and the vibration method in the pouring process are the same as in Example 1.

[0036] The clear-water mirror-finish concrete member formed in Example 2 is observed to have improved color difference compared with Example 1, but there are still uneven color, more air bubbles, and residual traces of vibrating rods.

[0037] Through the comparison of Example 1 and Example 2, it can be obtained that the coating material and flatness on the surface of the bottom mold are the main factors affecting the color difference.

Embodiment 3

[0039] This embodiment is further improved on the basis of Example 2. The steel base mold is coated with clear water formwork paint and replaced with a silica gel base film, and the silica gel film is adhered to the base form. The formula of clear water concrete, the mixing method and pouring of clear water concrete Vibration method in the process is identical with embodiment 1.

[0040] The clear-water mirror concrete member formed in embodiment 3 is observed, and its color difference is bigger than embodiment 1, and is not smooth, and the light and shade of the finishing surface intersects, and there are many air bubbles. Therefore, the silica gel film is not suitable for pouring of clear-water concrete. Through this embodiment, it is considered that the main factors affecting the chromatic aberration of the finish are the flatness and surface tension of the film.

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Abstract

The invention discloses a large fair-faced mirror surface concrete member and a manufacturing method thereof. The method comprises the following steps that: a pouring mold is manufactured, a special self-adhesive anti-explosion polyester substrate film is attached to the surface of a bottom mold, and fair-faced concrete suitable for pouring of the anti-explosion polyester substrate film is manufactured; the fair-faced concrete is prepared from the following components in parts by weight: 221 parts of water, 729 parts of white cement, 999 parts of medium sand and 4.37 parts of an admixture; thefair-faced concrete is evenly stirred and poured through a special concrete stirring machine; after the concrete member reaches the hoisting strength, hoisting and demolding are conducted, and demolding is conducted on the concrete member; and the fair-faced veneer of the concrete member is subjected to waterproof and antifouling treatment. According to the large fair-faced mirror surface concrete component prepared through the method, the surface color of fair-faced concrete is uniform, bubbles are few, the glossiness of a facing is high, the mirror surface is smooth, the large fair-faced mirror surface concrete component has extremely high artistic expressive force, the application range of the fair-faced concrete can be greatly expanded, and the artistic effect of a building facing isenriched.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a large clear water mirror concrete and a manufacturing method thereof. Background technique [0002] With the improvement of domestic living standards, people's demand for architectural artistic effects is also increasing. As an important component material of various buildings, concrete can be used to directly express artistic effects, which can effectively enrich the artistic expression of buildings. [0003] Fair-faced concrete is a type of concrete that uses the original color of the concrete as the finish without any finishing on the surface of the concrete after the concrete is formed. This type of concrete has a very decorative effect. However, the existing fair-faced concrete manufacturing technology has many deficiencies in the molding of large-area clear-faced facings and the color and luster control of clear-faced concrete, resulting in relat...

Claims

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Application Information

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IPC IPC(8): C04B28/04B28B1/04B28B1/093B28B23/02
CPCB28B1/045B28B1/093B28B23/02C04B28/04C04B2201/50C04B14/06C04B2103/302C04B14/22
Inventor 朱敏涛周强金自清朱安标王明牛
Owner SHANGHAI CONSTR BUILDING MATERIALS TECH GRP CO LTD
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