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Method for preparing wall and floor tile adhesive mortar by using mill tailings

A technology for bonding mortar and mine tailings, which is applied in the field of building materials, can solve problems such as consumption, large river sand resources, and high energy consumption in production, and achieve the effects of cost reduction, high bonding strength, and high-quality building quality

Active Publication Date: 2010-11-10
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only consumes a lot of river sand resources, but also consumes high energy consumption

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Components and weight / number ratios of bonding mortar: 100 parts of Portland cement, 80 parts of fly ash, 300 parts of iron tailings, 14.5 parts of redispersible latex powder, and 0.3 parts of water reducing agent. The preparation method is: Dry the iron tailings sand to make the moisture content 1%, and then mix it with Portland cement, fly ash, water reducer, and redispersible polymer latex powder through a gravity-free mixer to form a dry powder. Mortar products.

[0032] The Portland cement is an ordinary Portland cement 42.5 strength grade cement conforming to the GB175 "General Portland Cement" standard.

[0033] The particle size distribution range of the iron tailings sand is 0.01mm-1.2mm, and the fineness modulus is 0.9.

[0034] The fly ash meets the Class II grade specified in GB / T 1596 "Fly Ash Used in Cement and Concrete".

[0035] The water reducer belongs to the naphthalene sulfonate series, which meets the requirements of the GB8076 "Concrete Admixture...

Embodiment 2

[0044] Components and weight / number ratios of bonding mortar: 200 parts of Portland cement, 100 parts of fly ash, 350 parts of copper tailings, 16 parts of redispersible latex powder, 0.5 parts of water reducing agent. The preparation method is: Dry the copper tailings sand to make the moisture content 2.5%, and then mix it with Portland cement, fly ash, water reducer, and redispersible polymer latex powder through a gravity-free mixer to form a dry powder. Mortar products.

[0045] The Portland cement is slag Portland cement 32.5 strength grade cement conforming to the GB175 "General Portland Cement" standard.

[0046] The particle size distribution range of the copper tailings sand is 0.01mm-1.2mm, and the fineness modulus is 0.8.

[0047] The fly ash meets the Class I grade specified in GB / T 1596 "Fly Ash Used in Cement and Concrete".

[0048] The water reducer belongs to the naphthalene sulfonate series, which meets the requirements of the GB8076 "Concrete Admixture" sta...

Embodiment 3

[0057] Components and weight / number ratios of the bonding mortar: 165 parts of Portland cement, 30 parts of fly ash, 560 parts of iron tailings, 3 parts of redispersible latex powder, and 0.6 parts of water reducing agent. The preparation method is: Dry the iron tailings sand to make the moisture content 3.9%, and then mix it with Portland cement, fly ash, water reducer, and redispersible polymer latex powder through a gravity-free mixer to form a dry powder Mortar products.

[0058] The Portland cement is an ordinary Portland cement 42.5 strength grade cement conforming to the GB175 "General Portland Cement" standard.

[0059] The particle size distribution range of the iron tailings sand is 0.01mm-1.2mm, and the fineness modulus is 1.0.

[0060] The fly ash meets the Class II grade specified in GB / T 1596 "Fly Ash Used in Cement and Concrete".

[0061] The water reducer belongs to the naphthalene sulfonate series, which meets the requirements of the GB8076 "Concrete Admixtu...

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Abstract

The invention relates to a method for preparing wall and floor tile adhesive mortar by using mill tailings. The wall and floor tile adhesive mortar comprises the following components in part by weight: 50 to 250 parts of silicate cement, 20 to 150 parts of coal ash, 100 to 650 parts of iron tailing sand or copper tailing sand, 1 to 18 parts of re-dispersible latex powder and 0.2 to 0.6 part of water reducer. The preparation method comprises the following steps of: drying the iron tailing sand or copper tailing sand to ensure that the moisture content is 1 to 6 percent; and then mixing the iron tailing sand or copper tailing sand and the silicate cement, the coal ash, the water reducer and the re-dispersible polymer latex powder uniformly by using an agravic mixer to obtain the dried powder mortar products. A large number of industrial and mineral solid wastes such as the iron tailing sand or copper tailing sand, the coal ash and the like are utilized to be combined with the re-dispersible polymer latex powder, so that the properties of the mortar, in particular the adhesive property, are improved, and high-performance environmentally-friendly wall and floor tile adhesive mortar is prepared.

Description

technical field [0001] The invention relates to a building material, in particular to a cementing mortar for wall and floor tiles prepared by using mine iron ore tailings or copper tailings. Background technique [0002] With the rapid development of modern industry, the output of iron and steel and non-ferrous metals continues to increase, and the amount of iron tailings or copper tailings discharged from mines is increasing day by day. The overall utilization level of iron tailings or copper tailings in most mines is relatively low, and the waste of resources is serious. The accumulation of iron tailings or copper tailings is likely to cause air, soil and water pollution and damage the ecological environment. If it is not handled properly, it will cause dangers such as mudslides and embankment failures, and even geological disasters in severe cases. [0003] One of the main ways of comprehensive utilization of iron tailings or copper tailings is that it can be used as bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/12
CPCY02W30/91
Inventor 赵风清陈建波李豪岳义智王国庆张志国曹素改
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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