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Fiber composite phosphoaluminate cement and slurry thereof and concrete preparation method

A technology of composite aluminophosphate and aluminophosphate cement, which is applied in the field of inorganic materials

Inactive Publication Date: 2012-06-20
邢锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the anti-deformation ability under tension or bending is very poor, showing brittle failure, that is, poor toughness, low fracture energy, and its impact resistance is correspondingly low.
And Portland cement paste has low early strength
These have caused the limitations of Portland cement and its concrete intrinsic properties and fiber composites.
In addition, most of the fiber-containing cement concrete used in construction is mixed with the required fibers on site when the concrete is prepared, which is detrimental to the stability of the concrete quality.
As a brittle material, fiber portland cement concrete and its products can no longer meet the requirements of some special occasions, and also restrict the application of cement materials

Method used

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  • Fiber composite phosphoaluminate cement and slurry thereof and concrete preparation method
  • Fiber composite phosphoaluminate cement and slurry thereof and concrete preparation method
  • Fiber composite phosphoaluminate cement and slurry thereof and concrete preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1, polyester fiber aluminophosphate composite cement (the parts by weight of its components are):

[0036] 52.5 grade aluminophosphate cement: 97.20;

[0037] Polyester fiber (fiber length: 6mm): 2.80.

Embodiment 2

[0038] Embodiment 2, glass fiber aluminophosphate composite cement (the parts by weight of its components are):

[0039] 52.5 grade aluminophosphate cement: 98.00;

[0040] Glass fiber (fiber length: 6mm): 2.00.

Embodiment 3

[0041] Embodiment 3, carbon fiber aluminophosphate composite cement (the parts by weight of its components are):

[0042] 52.5 grade aluminophosphate cement: 99.50;

[0043] Carbon fiber: 0.50.

[0044] In Examples 1 to 3, the designed ratio of fibers is uniformly added to the aluminophosphate cement being stirred and dry-mixed to form an aluminophosphate composite cement product. When in use, add a corresponding proportion of sand and water to the aluminophosphate composite cement product to mix and stir to form a mortar. Table 1 shows the main mechanical properties of fiber-aluminophosphate composite cement slurry under standard maintenance.

[0045] Table 1. Net fiber-aluminophosphate composite cement 1(Standard maintenance) main mechanical properties / MPa

[0046]

[0047] 1. Standard consistency of net pulp: drop depth of test needle: 30mm

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Abstract

The invention discloses fiber composite phosphoaluminate cement and slurry thereof and a concrete preparation method. The fiber composite phosphoaluminate cement mainly comprises phosphoaluminate cement and fibers, and the weight parts of the components are 95.00-99.96 parts of phosphoaluminate cement, and 0.04-5.00 parts of fibers. The fiber composite phosphoaluminate cement concrete of the invention has obviously improved mechanical properties such as fracture energy, shock resistance, seepage resistance, shearing resistance, and the like when compared with the prior art.

Description

technical field [0001] The invention belongs to the field of inorganic materials, and in particular relates to a cementitious material compounded with fibers capable of hydration and hardening, and a preparation method for slurry and concrete. Background technique [0002] Ordinary cement concrete is prone to cracks due to the structural defects of the material itself, which leads to structural damage under the action of external forces. In view of the problems of high brittleness, easy cracking and poor impact resistance of general concrete materials, scholars from various countries have carried out research on improving the toughness of concrete materials. There are mainly ultrafine powder toughening technology, fiber toughening technology and polymer compound technology. Due to the disadvantages of easy aging of polymer compounds, the research on fiber-reinforced concrete is relatively active. [0003] Fiber concrete is a cement-based composite material composed of ceme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B12/02C04B28/34
Inventor 邢锋王卫仑丁铸胡佳山李仕群
Owner 邢锋
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