Concrete retarder, as well as preparation method and application thereof

A technology of concrete and setting retarder, applied in the field of setting retarder, can solve the problems of poor effect of exposed aggregate concrete, easy penetration of the setting retarder into the periphery or the interior of concrete, etc., and achieve the effect of accurate graphics and high efficiency

Active Publication Date: 2017-05-10

惠州筑友智造科技有限公司

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AI-Extracted Technical Summary

Problems solved by technology

However, when it is used in a specific position of concrete to prolong the setting time or the concrete forms an exposed aggregate surface, the retarder is easy to penetrate into the ...

Abstract

The invention discloses a concrete retarder, as well as a preparation method and application thereof. The concrete retarder comprises the following components: a retarding main body, a main solvent, an emulsifier, a drying catalyst and a thickening agent, wherein the retarding main body is a mixture of a C5 resin and methyl abietate; the main solvent is at least one of dimethylbenzene, dichloroethylene, trichloroethylene and glycol ethylene ether. The methyl abietate is decomposed into an abietic acid in water, a calcium ion is induced by the abietic acid to exist in a free state, and the coagulation time of alkaline concrete is further prolonged to achieve a retarding effect. Only the methyl abietate at a position contacting with the concrete is reacted with water in the concrete for decomposition, and in addition, the C5 resin is mixed with the methyl abietate to serve as a carrier of the methyl abietate, so that the flowability of the methyl abietate is further reduced, meanwhile, the uniformity of the methyl abietate in the concrete retarder is improved, and the concrete retarder can be further used for a specific position of the concrete to prolong the coagulation time or form the exposed aggregate surface of the concrete.

Technology Topic

SolventIon +11

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Examples

Experimental program(6)

Example Embodiment

[0038] see figure 1 , the present invention also provides a preparation method of the above-mentioned concrete retarder, the preparation method comprising the following steps.

[0039] Step S11: Mix C5 resin and methyl rosinate evenly to obtain a retarded body.

[0040] Step S12: Mix the retarder body, solvent and emulsifier evenly, and then mix with the drier and thickener to obtain the concrete retarder.

[0041] In one of the embodiments, when the concrete retarder also includes a cosolvent and/or a leveling agent and/or a filler and/or a pigment, after the retarder body, a solvent and an emulsifier are mixed uniformly, the cosolvent and/or Add leveling agent and/or filler and/or pigment and mix evenly.

[0042] Preferably, mechanical agitation is used for mixing both in step S11 and step S12, and the agitation speed is 800-1000 r/min. Preferably, the time for mixing the retarding main body, the solvent and the emulsifier in step S12 is 10 minutes. Preferably, it is evenly mixed with the drier and the thickener so that there is no layering.

[0043] It can be understood that in other embodiments, step S11 can be omitted, and step S12 can be directly performed to obtain the concrete retarder.

[0044] The preparation method of the above-mentioned concrete retarder has simple process, easy control of preparation conditions, and good reproducibility of the obtained concrete retarder. And the retarding main body is neutral, and the preparation process does not have the problem of acid or alkaline reagents corroding equipment.

[0045] see figure 2 , the present invention also provides the application of the above-mentioned concrete retarder in forming patterns on the concrete surface.

[0046] In one embodiment, the application of the above-mentioned concrete retarder in forming patterns on the concrete surface includes the following steps.

[0047] Step S21: Coating the concrete retarder on the bottom form, and then forming a graphic layer template on the bottom form coated with the concrete retarder and exposing part of the surface of the bottom form.

[0048] In this way, the pattern layer formwork separates the concrete retarder from the concrete layer, so that the position corresponding to the surface of the concrete layer and the pattern layer formwork cannot interact with the concrete retarder, so that the position corresponding to the surface of the concrete layer and the pattern layer formwork is cured form concrete.

[0049] Preferably, the graphic layer templates include text templates, pattern templates and the like. Preferably, there may be multiple graphic layer templates.

[0050] Preferably, in one of the embodiments, in step S21, the step of forming the graphic layer template on the bottom mold coated with concrete retarder is specifically: bonding the transfer film provided with the graphic layer template with the graphic layer template On the bottom mold coated with concrete retarder, just remove the transfer film. It can be understood that the transfer film is used to form the graphics layer template, the formed graphics are accurate and efficient, and are very suitable for forming discontinuous graphics such as Chinese characters, avoiding the problems of inaccurate manual position adjustment and low efficiency.

[0051] Specifically, the graphic layer template is bonded to the transfer film. Preferably, the adhesive strength between the graphic layer template and the transfer film is smaller than the adhesive strength between the graphic layer template and the bottom mold, so as to avoid removing the graphic layer template when removing the transfer film, resulting in a problem of lower efficiency.

[0052] Step S22: forming a concrete layer on the bottom form formed with the graphic layer formwork, and removing the bottom form and the graphic layer formwork.

[0053] Specifically, in step S22, the concrete is formed by pouring.

[0054] The position where the concrete layer is not in contact with the template of the graphic layer directly acts on the concrete retarder, thereby retarding the surface of this part of the concrete layer, and then can form the exposed aggregate surface by washing with water. The exposed aggregate surface of this part and the surface of the concrete layer are solidified at the position corresponding to the pattern layer formwork to form a concrete surface, forming a sharp contrast, and then forming a figure with the same shape as the pattern layer formwork.

[0055] Step S23: washing the surface of the concrete layer with water to form an exposed aggregate surface, and the surface of the concrete layer corresponds to the pattern layer template to form a pattern.

[0056] Specifically, the water washing in step S23 uses a high-pressure water gun for washing.

[0057] The above-mentioned concrete retarder is applied to the surface of the concrete to form a pattern, and the concrete retarder has a good retarding effect on a specific position, and the formed pattern is accurate and efficient.

[0058] The application method of the above-mentioned concrete retarder in forming graphics on the concrete surface can form accurate graphics and high efficiency, and is very suitable for forming discontinuous graphics such as Chinese characters, avoiding the problems of inaccurate manual position adjustment and low efficiency.

Example Embodiment

[0060] Example 1

[0061] The concrete retarder includes the following components in parts by weight: 27.5 parts of retarding main body, 50 parts of main solvent, 3 parts of emulsifier, 0.3 part of drier, 8 parts of thickener, 0.7 part of auxiliary solvent, 0.5 part Leveling agent, 8 parts of filler and 2 parts of pigment. The mass ratio of carbon five resin and rosin methyl ester in the retarding main body is 10:1, and main solvent is xylene, and emulsifier is OP-109 (alkylphenol polyoxyethylene ether) that Xingtai Lanxing Auxiliary Factory provides, catalyst The drying agent is cobalt drier, the thickener is fumed silica, the cosolvent is cyclohexanone, the leveling agent is hydroxymethyl cellulose ether (molecular weight is about 40,000), and the filler is a mass ratio of 1:1 325 mesh quartz sand and 800 mesh talcum powder, the pigment is iron red.

[0062] The preparation method of the concrete retarder comprises the following steps: uniformly mixing carbon five resin and methyl abietate to obtain a retarder body. Stir the retarding body, solvent and emulsifier with a stirring tank at a speed of 900r/min for 10 minutes to mix evenly, and continue stirring to add co-solvent, leveling agent, filler, pigment, drier and thickener and mix evenly , without delamination, get concrete retarder.

Example Embodiment

[0063] Example 2

[0064] The concrete retarder includes the following components in parts by weight: 30.5 parts of retarding body, 60 parts of main solvent, 1 part of emulsifier, 0.1 part of drier, 5 parts of thickener, 2 parts of auxiliary solvent, 0.4 part leveling agent and 1 part pigment. The mass ratio of carbon five resin and rosin methyl ester in the retarding main body is 20:1, the main solvent is ethylene glycol ether, the emulsifier is AEO-9 (fatty alcohol polyoxyethylene ether) provided by BASF, and the drier is cobalt The drier and thickener are fumed silica, the cosolvent is cyclohexanone, the leveling agent is M30 cellulose ether (molecular weight is about 40,000) provided by Yilaitai, and the pigment is organic blue. The preparation method of Example 2 is similar to that of Example 1, and will not be described in detail here.

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Description & Claims & Application Information

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Image encoding device, image decoding device, image encoding method, image decoding method, image encoding program, image decoding program, recording medium recording image encoding program, recording medium recording image decoding program

ActiveUS20070098068A1improve efficiency

Owner:NIPPON TELEGRAPH & TELEPHONE CORP

Classification and recommendation of technical efficacy words

graphic accurate
Improve efficiency

Manufacturing process of embedded radar antenna PCB

InactiveCN110662361Agraphic accurateZero line width and gap tolerance

Owner:GUANGZHOU TERMBRAY ELECTRONICS TECH CO LTD

Concrete retarder, as well as preparation method and application thereof

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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