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Preparation method of concrete surface skeleton exposing agent for prefabricated part

A technology of concrete surface and prefabricated components, applied in the field of construction engineering, can solve the problems of poor exposed depth, perishable storage, poor environmental protection, etc., and achieve the effect of easy facade construction, durable and stable facade construction, and expanding comprehensive utilization channels

Pending Publication Date: 2019-11-29
ANHUI GAODI BUILDING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the problems of the existing concrete surface exposed agent for prefabricated components, such as poor environmental protection, poor exposed depth, easy deterioration in storage, and easy flow and fall when the facade is brushed, the present invention provides a concrete surface exposed agent for prefabricated components, which is ecological Multiple advantages such as environmental protection, efficient retarding, long-lasting stability and easy facade construction

Method used

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  • Preparation method of concrete surface skeleton exposing agent for prefabricated part
  • Preparation method of concrete surface skeleton exposing agent for prefabricated part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] (1) Preparation of polymer / phyllosilicate composite colloid solution: 2.5kg nano-montmorillonite and 49.4kg polyvinyl alcohol powder (molecular weight 118,000-124,000 ) was uniformly dispersed in 494.4kg of water to obtain polymer / phyllosilicate composite colloidal solution;

[0083] (2) The preparation of organic-inorganic composite retarder: under the high-speed dispersion effect of 15m / s in line speed, add desulfurization gypsum 247kg, ethylene glycol 24.7kg in above-mentioned polymer / layered silicate composite colloid solution, Disperse to a homogeneous phase without precipitation to obtain an organic-inorganic composite retarder;

[0084] (3) Forming of the exposed agent: under the high-speed dispersion with a line speed of 15m / s, add 2kg of DISPERBX080 dispersant, 2kg of BYK-011 defoamer, and 5kg of substrate wetting agent to the above-mentioned organic-inorganic composite retarder in sequence , fragrance agent 3kg, titanium dioxide 50kg, 2000 mesh talcum powder ...

Embodiment 2

[0091] (1) Preparation of polymer / phyllosilicate composite colloidal solution: under high-speed dispersion with a linear velocity of 5m / s, 13.46kg hectorite and 22.43kg polyethylene glycol powder (molecular weight 20000) were uniformly dispersed in In 448.72kg of water, polymer / phyllosilicate composite colloidal solution was obtained;

[0092] (2) Preparation of organic-inorganic composite retarder: under high-speed dispersion with a linear speed of 20m / s, add 277.31kg of phosphogypsum and 48.46kg of sodium pyrophosphate to the above-mentioned polymer / layered silicate composite colloid solution 1. Glucose 64.62kg, dispersed to a homogeneous phase without precipitation, to obtain an organic-inorganic composite retarder;

[0093] (3) Forming of the exposed agent: under the high-speed dispersion with a line speed of 25m / s, add 5kg of DISPERBYK-190 dispersant, 5kg of TEGO Airex901W defoamer, and HY-6051 substrate moistening agent to the above-mentioned organic-inorganic composite ...

Embodiment 3

[0099] (1) Preparation of polymer / phyllosilicate composite colloidal solution: Under high-speed dispersion with a linear speed of 10m / s, 18.46kg of HemeciteS168 and 7.38kg of A-99 pure acrylic emulsion were uniformly dispersed in 369.16kg of water to obtain a polymer / layered silicate complex colloidal solution;

[0100] (2) Preparation of organic-inorganic composite retarder: under high-speed dispersion with a linear velocity of 20m / s, add 165.9kg of desulfurized gypsum and 71.1kg of sodium hexametaphosphate to the above-mentioned polymer / layered silicate composite colloid solution kg, sodium gluconate 237kg, dispersed to a homogeneous phase without precipitation, to obtain an organic-inorganic composite retarder;

[0101] (3) Forming of the exposed agent: under the high-speed dispersion with a line speed of 22m / s, add 3kg of DISPERBYK-190 dispersant, 3kg of TEGO Airex901W defoamer, and HY-6051 substrate moistening agent to the above-mentioned organic-inorganic composite ret...

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Abstract

The invention discloses a preparation method of a concrete surface skeleton exposing agent for a prefabricated part, and the preparation method comprises the following steps: (1) preparation of a polymer / phyllosilicate composite colloidal solution, namely under high-speed dispersion, uniformly dispersing phyllosilicate clay X1 and a water-soluble high-molecular polymer in water; (2) preparation ofan organic-inorganic composite retarding liquid, namely under high-speed dispersion, adding an organic-inorganic composite retarder composition into the polymer / layered silicate composite colloidal solution, and dispersing until no precipitate exists in a homogeneous phase; and (3) skeleton exposing agent forming, namely under the action of high-speed dispersion, sequentially adding a functionalauxiliary agent, a pigment, a filler and a slow-release long-acting preservative into the organic-inorganic composite retarding liquid, and uniformly mixing and dispersing. The concrete surface skeleton exposing agent for the prefabricated part has the multiple advantages of ecological environmental protection, efficient retarding, durability, stability, easiness in facade construction and the like, industrial byproduct gypsum is used as a main retarding component, and secondary utilization of byproducts is realized.

Description

technical field [0001] The invention belongs to the field of construction engineering, and in particular relates to a preparation method of a concrete surface exposure agent for prefabricated components. Background technique [0002] As a new type of green building material, precast concrete components (Precast Concrete, referred to as PC components) are widely used in construction, transportation, water conservancy, nuclear power and other fields. The components are prefabricated in the factory, transported to the construction site, and assembled and connected by post-cast concrete. In order to have a good bond between the newly poured concrete and the precast concrete components, according to the standard, the joint surface of the precast components and the post-cast concrete, grouting material, and sitting grouting material must be provided with a rough surface. [0003] The exposed agent washing process is one of the most commonly used rough surface setting methods at p...

Claims

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Application Information

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IPC IPC(8): C04B24/40C04B103/22
CPCC04B40/0039C04B2103/22C04B24/405C04B2103/408C04B2103/50C04B2103/0068C04B14/305C04B14/042C04B2103/61C04B22/144C04B22/16
Inventor 刘玉亭陈传明代义磊胡成朔田野陈刚
Owner ANHUI GAODI BUILDING MATERIAL CO LTD
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