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Precast concrete component exposed aggregate and preparation method thereof

A technology of prefabricated components and exposed aggregates is applied in the field of concrete prefabricated components, which can solve the problems of high production cost and complex components, and achieve the effects of improving corrosion resistance, simple components and reducing costs.

Inactive Publication Date: 2018-12-18
西安建工绿色建筑集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an exposed aggregate of concrete prefabricated components, which solves the problems of complex components and high production cost of traditional road aggregates, can greatly reduce the selling price, and has the advantages of simple components, low cost, easy to paint, and no Advantages of flowing and good use effect

Method used

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  • Precast concrete component exposed aggregate and preparation method thereof

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preparation example Construction

[0047] The road aggregate of the above-mentioned concrete prefabricated component needs to be mixed with various raw materials. The preparation method is simple, and the preparation method includes the following steps:

[0048] S1: Weigh the following raw materials according to the mass percentage:

[0049] Sodium gluconate 7.5% to 10%, thickener 0.8% to 1.2%, preservative 0.1% to 0.5%, water 88.3% to 91.6%; the sum of the mass percentages of the above components is 100%; among them, the thickener is Hydroxypropyl methylcellulose, preservative is sodium benzoate, water is drinking water.

[0050] S2: Add the sodium gluconate weighed in step S1 to the water weighed in step S1 for the first stirring, because sodium gluconate is easily soluble in water, just stir at a low speed, the stirring speed of the first stirring is 300r / min~ 500r / min, sodium gluconate is dissolved completely, obtains sodium gluconate solution; Add the thickener that step S1 takes by weighing in described ...

Embodiment 1

[0056] Weigh respectively 7.5% of sodium gluconate, 0.8% of hydroxypropyl methylcellulose, 0.1% of sodium benzoate, and 91.6% of drinking water according to mass percentage, add sodium gluconate to drinking water and stir for the first time, stir for the first time The speed is 500r / min to completely dissolve sodium gluconate to obtain a sodium gluconate solution; add hydroxypropyl methylcellulose to hot water at a temperature of 60°C to dissolve part of it in advance, and the mass ratio of thickener to hot water The ratio is 1:13, to obtain the mixed solution c, then add the mixed solution c to the sodium gluconate solution for the second stirring, until the hydroxypropyl methylcellulose is completely dissolved, to obtain the mixed solution a, continue to add the mixed solution a Sodium benzoate was added to the mixture, stirred for the third time to obtain the mixed solution b, and then the mixed solution b was left to stand for 24 hours to obtain the finished product A with ...

Embodiment 2

[0058] Weigh respectively 8.5% of sodium gluconate, 1.0% of hydroxypropyl methylcellulose, 0.5% of sodium benzoate, and 90.0% of drinking water according to mass percentage, add sodium gluconate to drinking water and stir for the first time, stir for the first time The speed is 450r / min to completely dissolve sodium gluconate to obtain a sodium gluconate solution; add hydroxypropyl methylcellulose to hot water at a temperature of 55°C to dissolve part of it in advance, and the mass ratio of thickener to hot water The ratio is 1:12 to obtain the mixed solution c, then add the mixed solution c to the sodium gluconate solution for the second stirring until the hydroxypropyl methylcellulose is completely dissolved to obtain the mixed solution a, and continue to add the mixed solution to the mixed solution a Sodium benzoate was added to the mixture, stirred for the third time to obtain the mixed solution b, and then the mixed solution b was left to stand for 24 hours to obtain the f...

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Abstract

The invention relates to the technical field of precast concrete components, discloses precast concrete component exposed aggregate and solves the problems that exposed aggregate in the prior art hascomplex ingredients, high production cost and high selling price. The precast concrete component exposed aggregate is prepared from the following raw materials in mass percent: 7.5% to 10% of sodium gluconate, 0.8% to 1.2% of thickening agent, 0.1% to 0.5% of preservative and 88.3% to 91.6% of water, wherein the raw materials are evenly mixed to prepare the precast concrete component exposed aggregate. The precast concrete component exposed aggregate has the advantages of simple ingredients, low cost, easiness in being painted, no fluidity and good use effect. The invention further discloses apreparation method of the exposed aggregate. All the ingredients are mixed according to steps to obtain a finished product of the exposed aggregate, and the preparation method is simple.

Description

technical field [0001] The invention relates to the technical field of concrete prefabricated components, in particular to an exposed aggregate of a concrete prefabricated component and a preparation method thereof. Background technique [0002] Prefabricated prefabricated buildings are an emerging construction technology. Prefabricated concrete components are produced in factories, including laminated panels, laminated beams, columns, interior and exterior wall panels, etc. Rough surfaces should be set on the joint surfaces of these components to increase Surface area, in order to improve the bonding strength of joint surfaces or joints during construction and assembly (see JGJ1-2014 "Technical Regulations for Prefabricated Concrete Structures" 6.5.5); It is formed by washing with water after the component is demolded. Exposed aggregate is an important auxiliary material in the production of prefabricated concrete components. It is used in large quantities. Traditional con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/63
CPCC04B41/4803C04B41/63C04B41/4537C04B41/46
Inventor 刘浩强蓬永刚李安永郑思琪吕荣
Owner 西安建工绿色建筑集团有限公司
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