Industrial waste residue dry-mixed mortar

A technology for dry-mixing mortar and industrial waste residues, applied in the field of building materials, can solve problems such as limited utilization, and achieve the effects of rich material sources, high production costs, and good workability

Inactive Publication Date: 2013-10-02
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although my country has started to study the comprehensive utilization of phosphorus slag since the 1970s, mainly using yellow phosphorus slag to prepare cement, glass-ceramics, concrete, etc. Its utilization is still limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0028] Example 1: A dry-mixed masonry mortar such as M10, which is mainly composed of cement, phosphorus slag powder, fly ash, composite activator, composite admixture and sand, and the ratio of the cementitious material is: cement 20 parts, 40 parts of phosphorus slag powder, 40 parts of fly ash, 0.5 parts of sodium sulfate, 3 parts of desulfurized gypsum, 5 parts of slaked lime powder, and 1 part of Nai series water reducer to prepare dry-mixed mortar, and the lime-sand ratio is controlled Between 1:1 and 1:6, the water consumption should be controlled at a consistency of 70 to 90 mm. The test uses a standard specimen size of 70.7mm×70.7mm×70.7mm. The test of time and shrinkage value is carried out according to JGJ / T 70-2009 "Standard for Test Methods of Basic Properties of Building Mortar". The test mix ratio and test results are shown in Table 1 and Table 2.

[0029]

[0030] It can be seen from the above table that the 2h consistency loss rate, apparent density, wate...

example 2

[0031] Example 2: A dry-mixed plastering mortar such as M10, on the basis of the formula of Example 1, 0.1 part of cellulose ether and 1 part of redispersible latex powder are added to prepare a dry-mixed plastering mortar, and the lime-sand ratio is controlled at Between 1:1 and 1:6, the water consumption should be controlled at a consistency of 90 to 110 mm. The standard specimen size used in the test is 70.7mm×70.7mm×70.7mm. The compressive strength, setting time, and shrinkage of the mortar The value test is carried out with reference to JGJ / T 70-2009 "Standard for Basic Performance Test Methods of Building Mortar". The test results are shown in Table 3.

[0032]

[0033] It can be seen from Table 3 that the 2h consistency loss rate, apparent density, setting time, water retention rate, strength and other properties of the above mix ratios all meet the requirements of GB / T25181-2010 "Ready Mixed Mortar".

[0034]

[0035] In the industrial waste slag dry-mixed mortar o...

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Abstract

The invention discloses an industrial waste residue dry-mixed mortar. The industrial waste residue dry-mixed mortar takes cement, phosphorus slag powder, fly ash, composite activators, composite additives and sand as raw materials and is prepared after all the raw materials are mixed evenly. The industrial waste residue dry-mixed mortar comprises, by weight, 18-22 parts of cement, 35-45 parts of phosphorus slag powder, 35-45 parts of fly ash, 0-20 parts of composite activators, 0.1-7.5 parts of composite additives and 65-85 parts of sand. The industrial waste residue dry-mixed mortar can take a large number of phosphorus slag and fly ash as raw materials and is advantaged by low production cost, low energy consumption, less pollution, good workability, good mechanical properties, good durability, reliable quality and wide adaptability.

Description

technical field [0001] The invention relates to a kind of industrial waste residue dry-mixed mortar, which belongs to the technical field of building materials. Background technique [0002] Compared with traditional mortar, dry-mixed mortar has the advantages of stable quality, low labor intensity, less material waste, and high construction efficiency. However, through the promotion and use of dry-mixed mortar, it is found that it still has shortcomings, such as high factory cost, large amount of cement, The utilization rate of industrial waste residue is low. However, during the production and use of cement, energy consumption is large, waste gas and dust are large, and environmental pollution is large. Therefore, it is very necessary to find a technical solution for preparing dry-mixed mortar with a cementitious material that can replace cement in large quantities in the field of building materials. [0003] Phosphorus slag is an industrial waste slag with calcium silic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
Inventor 刘秀伟林倩杨林周静祝代雄刘秋美
Owner GUIZHOU UNIV
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