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A prefabricated prefabricated component inorganic bonding material, preparation method and application

A technology of inorganic bonding and prefabricated components, applied in bridge parts, building structures, bridges, etc., can solve the problems of high energy consumption, poor durability, and complicated construction of raw materials, to broaden the conditions and scope of use, enhance strength and Density, the effect of improving the use of fault tolerance

Active Publication Date: 2021-09-10
山东塔罗斯智能装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of binder types, ordinary cement-based binders mainly have problems such as long setting time, low early strength, poor bonding performance, easy shrinkage, and limited use environment. There are problems such as high cost, toxicity, poor environmental protection, poor durability, and complicated construction. Modified special cement-based, especially magnesium phosphate cement-based adhesives have early strength, match the properties of concrete materials, cure at room temperature, and have strong adhesion. and other characteristics, it has certain advantages in being used as a binder
However, magnesium phosphate cement still has some problems when it is used as the interface binder of prefabricated components: for example, when it is used alone, the setting is too fast, the setting time cannot be adjusted, the bonding strength is relatively low, the volume stability is poor, and the fluidity is poor, etc.
At present, most of the magnesia raw materials used in magnesium phosphate cement are dead-burned magnesia (magnesia), which is magnesite (MgCO 3 ) obtained by calcination at high temperature (above 1300 ° C), the energy consumption of raw materials is high, the carbon emission of processing is high, and it is not environmentally friendly, and the activity of dead-burned magnesia is low, and the reaction rate with phosphate salt is slow, so it is used in low temperature environment restricted

Method used

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  • A prefabricated prefabricated component inorganic bonding material, preparation method and application

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preparation example Construction

[0076] In yet another specific embodiment of the present invention, a method for preparing the above-mentioned prefabricated prefabricated component inorganic bonding material is provided, including the following steps:

[0077] (1) Preparation of component A: weigh magnesium compound, fly ash, high-efficiency water reducer and composite retarder according to the above ratio, stir well and set aside;

[0078] (2) Preparation of component B: take by weighing phosphate, quartz sand, fiber, water-resistance agent and pH stabilizer according to the above ratio, stir well and set aside;

[0079] (3) Mixing: Mix component A and component B with water at a ratio of 1:0.4-0.65 and stir to form a slurry.

[0080] In yet another specific embodiment of the present invention, the application of the prefabricated prefabricated component inorganic bonding material in the field of prefabricated houses, bridges and tunnels is provided.

[0081] Specifically, the application method is to inje...

Embodiment 1

[0084] A method for preparing an inorganic bonding material for an assembled prefabricated component, comprising the steps of:

[0085] (1) Preparation of Component A: Weigh 150 parts of magnesium compound in proportion (component distribution ratio is: 40 parts of heavy light burnt magnesium, 40 parts of light light burnt magnesium, 20 parts of magnesium hydroxide), 15 parts of fly ash 1.5 parts of high-efficiency superplasticizer (component ratio: 40 parts of polyether, 60 parts of polyacrylate), 12 parts of composite retarder (component ratio: 50 parts of borax, 30 parts of urea, 20 parts of boric acid) , and stir evenly for later use; wherein, the fineness of heavy light-burned magnesium and light light-burned magnesium are both 60 mesh, and the purity is greater than 85%; the fineness of magnesium hydroxide is 1250 mesh, and the purity is 99%;

[0086](2) Preparation of component B: Weigh 30 parts of phosphate in proportion (component distribution ratio is: 20 parts of am...

Embodiment 2

[0089] A method for preparing an inorganic bonding material for an assembled prefabricated component, comprising the steps of:

[0090] (1) Preparation of Component A: Weigh 50 parts of magnesium compound in proportion (component distribution ratio is: 30 parts of heavy light burnt magnesium, 30 parts of light light burnt magnesium, 40 parts of magnesium hydroxide), 15 parts of fly ash 0.5 parts of high-efficiency superplasticizer (component ratio: 60 parts of polyether, 40 parts of polyacrylate), 6 parts of composite retarder (component ratio: 60 parts of borax, 30 parts of urea, 10 parts of boric acid) , stir evenly and set aside; wherein, the fineness of heavy light-burned magnesium and light light-burned magnesium are both 150 mesh, and the purity is greater than 85%; the fineness of magnesium hydroxide is 1250 mesh, and the purity is 99%;

[0091] (2) Preparation of component B: Weigh 15 parts of phosphate in proportion (component distribution ratio is: 30 parts of ammoni...

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Abstract

The invention provides an inorganic bonding material for prefabricated prefabricated components and its preparation method and application. The inorganic bonding material is prepared from component A and component B; wherein, component A consists of the following raw materials in parts by weight Composition: 50-100 parts of magnesium compound, 15-35 parts of fly ash, 0.5-1.5 parts of high-efficiency superplasticizer, 6-12 parts of composite retarder; component B is composed of the following raw materials in parts by weight: phosphate 15- 30 parts, 50-120 parts of quartz sand, 0.5-5 parts of fiber, 1-3 parts of water resistance agent, 3-6 parts of pH stabilizer. The inorganic bonding material for assembled prefabricated components prepared by the present invention has adjustable solidification time, high bonding strength, high tensile strength, good bonding durability, low shrinkage, good weather resistance, good high temperature resistance, and low cost , Environmental friendliness and so on.

Description

technical field [0001] The invention belongs to the technical field of inorganic materials, and in particular relates to an inorganic bonding material for an assembled prefabricated component, a preparation method and an application. Background technique [0002] In recent years, with the rapid development of my country's real estate industry, bridges and tunnels and other engineering construction industries, and the increasing attention to housing industrialization, prefabricated components for housing, bridges and tunnels have begun to recover quietly. Assembled prefabricated components are one of the important directions for the development of my country's building structures. It is conducive to the development of my country's building industrialization, improving production efficiency and saving energy. For prefabricated structural systems, the construction of node connections between components is one of the key processes. Improving the bonding performance of component ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/34E04B1/00E01D19/00C04B24/32C04B24/12C04B24/28C04B22/16C04B103/22C04B103/30C04B103/65
Inventor 田冬于海洋张亮亮韩斌韩锐锐杜东升刘洋
Owner 山东塔罗斯智能装备有限公司
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