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Low-strength composite mortar doped with glass bead aggregate and chemical fiber and preparation method thereof

A chemical fiber and composite mortar technology, applied in the field of building materials, can solve problems such as damage and weak seismic performance, and achieve the effects of simple process, simple construction and remarkable seismic isolation effect.

Inactive Publication Date: 2014-05-21
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to find a kind of mortar with appropriate strength and good shear resistance as the base shock-isolation layer, which can be used in village buildings to solve the problem of weak earthquake resistance and serious damage of village buildings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of low-strength composite mortar mixed with glass bead aggregate and polyester fiber, it comprises the following steps,

[0024] 1) According to the mass ratio of each raw material: cement: mixed aggregate: polyester fiber: lime paste: water = 1:8:0.12:0.8:1.2, the mass ratio of glass beads in the mixed aggregate is 70%, and the percentage of each raw material is: Cement 9.0%, sand 21.6%, glass beads 50.3%, polyester fiber 1.1%, lime paste 7.2%, water 10.8%, weigh cement, fine sand, glass beads, polyester fiber, lime paste, water;

[0025] The fine sand is made of natural river sand, which is widely distributed and convenient for selection; the maximum particle size of the fine sand passes through a sieve hole of 2.5mm; the technical characteristics of the fine sand should meet the corresponding technical regulations; ;

[0026] The lime paste is a paste-like product after quicklime (CaO) slaking, and the active ingredient is Ca(OH) 2 , It should ...

Embodiment 2

[0030] A preparation method of low-strength composite mortar mixed with glass bead aggregate and polyester fiber, it comprises the following steps,

[0031] 1) According to the mass ratio of each raw material: cement: mixed aggregate: polyester fiber: lime paste: water = 1: 12: 0.80: 1.3: 1.5, the mass ratio of glass beads in the mixed aggregate is 85%, and the percentage of each raw material is: Cement 6.1%, sand 10.9%, glass beads 61.4%, polyester fiber 4.8%, lime paste 7.8%, water 9.0%, weigh cement, fine sand, glass beads, polyester fiber, lime paste, water;

[0032] The fine sand is made of natural river sand, which is widely distributed and convenient for selection; the maximum particle size of the fine sand passes through a sieve hole of 2.5mm; the technical characteristics of the fine sand should meet the corresponding technical regulations; ;

[0033] The lime paste is a paste-like product after quicklime (CaO) slaking, and the active ingredient is Ca(OH) 2 , It sho...

Embodiment 3

[0037] A preparation method of low-strength composite mortar mixed with glass bead aggregate and polyester fiber, it comprises the following steps,

[0038] 1) According to the mass ratio of each raw material: cement: mixed aggregate: polyester fiber: lime paste: water = 1: 10: 0.30: 1.1: 1.4, the mass ratio of glass beads in the mixed aggregate is 80%, and the percentage of each raw material is: Cement 7.2%, sand 14.5%, glass beads 58.0%, polyester fiber 2.2%, lime paste 8.0%, water 10.1%, weigh cement, fine sand, glass beads, polyester fiber, lime paste, water;

[0039] The fine sand is made of natural river sand, which is widely distributed and convenient for selection; the maximum particle size of the fine sand passes through a sieve hole of 2.5mm; the technical characteristics of the fine sand should meet the corresponding technical regulations; ;

[0040] The lime paste is a paste-like product after quicklime (CaO) slaking, and the active ingredient is Ca(OH) 2 , It sh...

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Abstract

The invention relates to low-strength composite mortar doped with glass bead aggregate and a chemical fiber and a preparation method thereof, and belongs to the field of a building material. The mortar comprises glass beads, fine sand, cement, lime putty, a chemical fiber and water, wherein the mixed aggregate is a mixture of the glass beads and the natural fine sand; the glass beads account for 70-85% of the weight; the cement is ordinary portland cement; the glass beads adopt renewable glass beads of taking broken glass and the like as raw materials; the glass beads of which the diameters are 3.5-5mm are high in strength and good in durability; the fine sand is natural sand, the maximal particle size can pass through a sieve hole of 1.5mm; the chemical fiber comprises a fiber-reinforced plastic (FRP) fiber, a polyester fiber, a polyamide fiber, a polyacrylonitrile fiber, and a natural chemical fiber with good flexibility and block property; the lime putty is a product of the limestone after being cured. The low-strength composite mortar has the advantages of being low in cost, environment-friendly and available in materials, wide in distribution, and less in energy consumption, and meanwhile, the motor is simple in operation method and easy to construct.

Description

technical field [0001] The invention relates to a shock-isolation layer mortar used for masonry between the superstructure and foundation of village and town buildings and a preparation method thereof, belonging to the field of building materials, in particular to a low-strength composite mortar mixed with glass bead aggregate and chemical fiber and its preparation method. Preparation. Background technique [0002] As a civil engineering material, mortar is widely used in masonry, plastering or decoration engineering in civil construction. Its main raw materials are cement, sand, water and other admixtures. [0003] The principle of foundation isolation is to add a support element with a small horizontal stiffness between the foundation and the superstructure, so that the natural vibration period of the superstructure is prolonged, and it is far away from the excellent period of the earthquake action, thereby reducing the impact of the earthquake action on the superstructure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B16/06C04B14/22
Inventor 曹万林叶炜张玉山
Owner BEIJING UNIV OF TECH
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