Glass bead aggregate-doped low-strength mortar and preparation method thereof

A glass bead and low-strength technology, applied in the field of building materials, can solve the problems of poor seismic performance, low shear performance, damage, etc., and achieve the effect of simple construction, remarkable seismic isolation effect and simple process

Inactive Publication Date: 2014-04-02
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 seek a kind of mortar with low strength, good shear resistance and good workability as a basic seismic isolation layer, which is suitable for village and town buildings, so as to solve the problems of poor seismic performance and serious damage of village and town buildings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A low-strength mortar mixed with glass bead aggregates and a preparation method thereof, comprising the steps of:

[0024] 1) According to the mass ratio of each raw material: cement: mixed aggregate: lime paste: water = 1:8:0.8:1.2, the mass ratio of glass beads in the mixed aggregate is 70%, and the percentage of each raw material is: cement 9.1%, sand 21.8 %, glass beads 50.9%, lime paste 7.3%, water 10.9%, weigh cement, fine sand, glass beads, lime paste, water;

[0025] The fine sand is natural river sand. The maximum particle size of the fine sand passes through the 2.5mm sieve hole, and the technical characteristics of the fine sand should conform to the corresponding technical regulations; the sand should be kept clean, and it should be sampled and inspected in batches, and can only be used after passing the test;

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

Embodiment 2

[0029] A preparation method for low-strength mortar mixed with glass bead aggregate, which comprises the steps of:

[0030] 1) According to the mass ratio of each raw material: cement: mixed aggregate: lime paste: water = 1:12:1.3:1.5, the mass ratio of glass beads in the mixed aggregate is 85%, and the percentage of each raw material is: cement 6.3%, sand 11.4% %, glass beads 64.6%, lime paste 8.2%, water 9.5%, weigh cement, fine sand, glass beads, lime paste, water;

[0031] The fine sand is natural river sand. The maximum particle size of the fine sand passes through the 2.5mm sieve hole, and the technical characteristics of the fine sand should conform to the corresponding technical regulations; the sand should be kept clean, and it should be sampled and inspected in batches, and can only be used after passing the test;

[0032] The lime paste is a paste-like product after quicklime (CaO) slaking, and the active ingredient is Ca(OH) 2 , It should be aged for two weeks be...

Embodiment 3

[0035] A preparation method for low-strength mortar mixed with glass bead aggregate, which comprises the steps of:

[0036] 1) According to the mass ratio of each raw material: cement: mixed aggregate: lime paste: water = 1:9:0.9:1.4, the mass ratio of glass beads in the mixed aggregate is 80%, and the percentage of each raw material is: cement 8.1%, sand 14.7% %, glass beads 58.5%, lime paste 7.3%, water 11.4%, weigh cement, fine sand, glass beads, lime paste, water;

[0037] The fine sand is natural river sand. The maximum particle size of the fine sand passes through the 2.5mm sieve hole, and the technical characteristics of the fine sand should conform to the corresponding technical regulations; the sand should be kept clean, and it should be sampled and inspected in batches, and can only be used after passing the test;

[0038] The lime paste is a paste-like product after quicklime (CaO) slaking, and the active ingredient is Ca(OH) 2 , It should be aged for two weeks be...

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Abstract

The invention discloses glass bead aggregate-doped low-strength mortar and a preparation method thereof, and belongs to the field of building materials. The glass bead aggregate-doped low-strength mortar is prepared by mixing glass beads, fine sand, cement, lime putty and water according to a certain ratio; the weight ratio of the cement to the mixed aggregate to the lime putty to the water is 1: (8-12): (0.8-1.3): (1.2-1.5); the mixed aggregate is the glass beads and the natural fine sand; the mass ratio of the glass beads is 70-85%. The cement is ordinary portland cement; the glass beads adopt regenerative glass beads with broken glass as raw materials, have good pressure resistance and durability, and have the diameters of 3.5-5 mm; the fine sand is natural sand; the biggest particle size of the fine sand passes through 1.5 mm of screen holes; the lime putty is limestone curing after-products; the mixed aggregate is a mixture of the glass beads and the natural fine sand, wherein the mass ratio of the glass beads is preferably 70-85%. The glass bead aggregate-doped low-strength mortar has the advantages of low production cost, environment-friendly and easily-obtained materials and low energy consumption; the method is easy to operate.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a shock-isolation layer mortar used for masonry between a village building superstructure and a foundation and a preparation method thereof. Background technique [0002] As a civil construction material, mortar has been widely used in construction engineering. Its main raw materials are cement, sand, water and other additives. It is usually used as masonry, plastering or decorative mortar. [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 and alleviating Earthquakes protect people's lives and property. Although base isolation has been...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B14/22
Inventor 曹万林张玉山叶炜
Owner BEIJING UNIV OF TECH
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