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A performance-adjusting admixture of magnesium phosphate cement-based composite material

A technology of magnesium phosphate cement and composite material, applied in the field of building materials, can solve the problems of difficult setting time of magnesium phosphate cement, poor environmental applicability, poor volume stability, etc., and achieves benefits of sustainable development, low cost, and simple components. Effect

Active Publication Date: 2017-11-24
JIANGSU SOBUTE NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a magnesium phosphate cement-based composite material performance adjustment admixture, improve magnesium phosphate cement repair materials, reinforcement materials and 3D printing magnesium phosphate cement hard to control setting time, poor environmental applicability, poor volume stability, and poor bonding performance and poor durability

Method used

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  • A performance-adjusting admixture of magnesium phosphate cement-based composite material
  • A performance-adjusting admixture of magnesium phosphate cement-based composite material
  • A performance-adjusting admixture of magnesium phosphate cement-based composite material

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Effect test

Embodiment 1

[0033]Weigh 15.6% of calcium oxide expansion agent, 6.9% of polyalcohol shrinkage reducer, 12.8% of polypropylene fiber, 1.8% of hydroxypropyl methylcellulose, 30.0% of organic silicon viscosity reducer, 23.7% of magnesium chloride hexahydrate, superplastic 9.2% chemical agent, mixed evenly, packed for later use.

Embodiment 2

[0035] Weigh 13.2% of magnesium oxide expansion agent, 6.3% of polyether shrinkage reducer, 14.3% of glass fiber, 3.7% of octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate, and 26.4% of organic polyether viscosity reducer , 27.4% copper chloride, 8.7% superplasticizer, mixed evenly, and packed for later use.

Embodiment 3

[0037] Weigh 12.2% of calcium oxide expansion agent, 5.3% of polyether shrinkage reducer, 14.9% of polyethylene fiber, 3.0% of octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate, 25.9% of organic silicon viscosity reducer, Calcium chloride 30.2%, superplasticizer 8.5%, mix uniformly, carry out packaging and stand-by.

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Abstract

The invention discloses a magnesium phosphate cement-based composite material property modifying additive. The additive comprises components in percentage by weight as follows: 9.8%-17.9% of an expanding agent, 4.9%-9.0% of a shrinkage reducing agent, 12.8%-23.3% of organic fibers, 1.4%-5.0% of a fiber dispersing agent, 20.1%-33.0% of a viscosity modifier, 12.2%-33.5% of a thickening time control agent and 4.4%-12.5% of a superplasticizer. The magnesium phosphate cement-based composite material property modifying additive comprises the simple components, the preparation technology is simple and rapid, the environment applicability is high, the usage method can be flexibly chosen according to construction site equipment and technology conditions, and construction operation and efficiency improvement are facilitated; a magnesium phosphate cement-based composite material prepared from the additive has the characteristics of wide thickening time control range, high mechanical property, good volume stability, excellent bonding property, good durability and the like, service performance of magnesium phosphate cement repair materials and reinforcement materials are greatly improved, and application and popularization of the 3D printing technology in the building field are particularly facilitated.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a performance-adjusting admixture for magnesium phosphate cement-based composite materials. Background technique [0002] Magnesium phosphate cement-based composite material is a new type of sustainable inorganic cementitious material based on the acid-base chemical reaction and physical interaction between magnesium oxide and soluble phosphate. In the 1980s, it received widespread attention from western countries, making magnesium phosphate cement-based composite materials show broad application prospects in emergency repair and construction and repair and reinforcement engineering applications. At the same time, with the recent application of 3D printing technology in the construction field, due to its good buildability, extrudability, cohesiveness and early strength characteristics, magnesium phosphate cement-based composite materials are used as 3D printing materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38C04B24/40
Inventor 石亮韩方玉刘建忠张倩倩周华新崔巩
Owner JIANGSU SOBUTE NEW MATERIALS
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