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A kind of non-shrinkage wet-mix thermal insulation mortar mixed with phosphorus slag and its preparation method

A thermal insulation mortar, non-shrinkage technology, applied in the field of building materials, can solve problems such as the difficulty of supplying mortar to meet large-scale construction needs, the poor quality stability of dry-mix thermal insulation mortar, and the inability to effectively control the setting time. Control the construction operation time, is conducive to the production quality control, the effect of significant economic and social benefits

Active Publication Date: 2019-03-29
中建西部建设西南有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Phosphorus slag has a relatively obvious retarding effect on the gelling system, and the setting time cannot be effectively controlled after being mixed with phosphorus slag, and it is difficult to control its quality
At present, although there are cases of dry-mixed thermal insulation mortar prepared with phosphorus slag, because dry-mixed thermal insulation mortar needs to be mixed with water on site, sometimes construction companies carry out large-scale mortar construction in order to catch up with the construction period, and the supply speed of mortar is likely to be difficult to meet large-scale Construction requirements; In addition, during the process of adding water and mixing at the construction site, due to random control of water consumption, or large differences in water consumption between different batches, there will be construction quality risks such as large shrinkage, hollowing and cracking
[0004] Wet-mix thermal insulation mortar can not only solve the problems of poor quality stability, large dry shrinkage, high construction strength, and low construction efficiency of dry-mix thermal insulation mortar; if wet-mix thermal insulation mortar can improve the utilization rate of phosphorus slag, but how to solve the problem of phosphorus The uncontrollability of the setting time of the slag-to-gelling system and the excessive drying shrinkage have always been a technical problem

Method used

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  • A kind of non-shrinkage wet-mix thermal insulation mortar mixed with phosphorus slag and its preparation method
  • A kind of non-shrinkage wet-mix thermal insulation mortar mixed with phosphorus slag and its preparation method
  • A kind of non-shrinkage wet-mix thermal insulation mortar mixed with phosphorus slag and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A non-shrinking wet-mix thermal insulation mortar mixed with phosphorus slag, its composition is shown in Table 1 in parts by mass.

[0042] Table 1

[0043]

[0044]In this example, among the composite admixtures for wet-mixed thermal insulation mortar, ZJ-13 etherified polycarboxylate superplasticizer has a molecular weight of 50,000, a water reducing rate of 32-34%, and a solid content of 42-43% by weight; cellulose hydroxyalkyl ether It is hydroxypropyl methylcellulose ether, its molecular weight is about 500,000; the dispersible latex powder is vinyl acetate-ethylene-acrylate copolymer latex powder, with a fineness of 0.3-7 μm; the molecular weight of polyacrylamide is 50,000; twelve Sodium alkylbenzene sulfonate is a white powder, analytically pure, with a purity of 90%; sodium gluconate is a light brown liquid with an active component of about 35-37 wt%; hydroxyethylidene diphosphonic acid is a light yellow transparent liquid with an active component of 42-30%...

Embodiment 2

[0055] A non-shrinking wet-mix thermal insulation mortar mixed with phosphorus slag, its composition is shown in Table 3 in parts by mass.

[0056] table 3

[0057]

[0058] In this example, among the composite admixtures for wet-mixed thermal insulation mortar, ZJ-13 etherified polycarboxylate superplasticizer has a molecular weight of 50,000, a water reducing rate of 32-34%, and a solid content of 42-43% by weight; cellulose hydroxyalkyl ether It is hydroxypropyl methylcellulose ether with a molecular weight of about 1,000,000; the dispersible latex powder is vinyl acetate-ethylene-acrylate copolymer latex powder with a fineness of 0.3-7 μm; the molecular weight of polyacrylamide is 60,000; twelve Sodium alkylbenzenesulfonate is a white powder, analytically pure, with a purity of 90%; sodium gluconate is a light brown liquid, with an active component of about 35-37wt%; hydroxyethylidene diphosphonic acid is a light yellow transparent liquid, with an active component of 42...

Embodiment 3

[0069] A non-shrinking wet-mix thermal insulation mortar mixed with phosphorus slag, the composition of which is shown in Table 5 in parts by mass.

[0070] table 5

[0071]

[0072] In this example, among the composite admixtures for wet-mixed thermal insulation mortar, ZJ-13 etherified polycarboxylate superplasticizer has a molecular weight of 50,000, a water reducing rate of 32-34%, and a solid content of 42-43% by weight; cellulose hydroxyalkyl ether It is hydroxypropyl methylcellulose ether, its molecular weight is about 1,000,000; the dispersible latex powder is vinyl acetate-ethylene-acrylate copolymer latex powder, with a fineness of 0.3-7 μm; the molecular weight of polyacrylamide is 60,000; twelve Sodium alkylbenzene sulfonate is a white powder, analytically pure, with a purity of 90%; sodium gluconate is a light brown liquid with an active component of about 35-37 wt%; hydroxyethylidene diphosphonic acid is a light yellow transparent liquid with an active compone...

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Abstract

The invention discloses wet-mixed thermal mortar doped with phosphorus slag and free of shrinkage. The wet-mixed thermal mortar is mainly prepared from cement, the phosphorus slag, fly ash, slaked lime, a composite admixture, lightweight aggregates, fibers and mixing water, wherein the composite admixture mainly comprises components as follows: an etherified polycarboxylate superplasticizer, hydroxyalkyl cellulose ether, dispersible latex powder, polyacrylamide, sodium dodecyl benzene sulfonate, sodium gluconate and etidronic acid. The wet-mixed thermal mortar effectively reduces construction intensity and has the characteristics that the construction operation time is superlong and controllable, the thermal mortar avoids air shrinkage and the like, furthermore, the wet-mixed thermal mortar is stable in performance in operable time of the construction, and the construction quality is excellent.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a non-shrinking wet-mix thermal insulation mortar mixed with phosphorus slag and a preparation method thereof. Background technique [0002] Phosphorus slag is industrial waste discharged during the production of yellow phosphorus by phosphate rock thermal method. The accumulation of phosphorus slag not only occupies land resources, but also destroys the local ecological environment. It is urgent to promote the utilization of phosphorus slag as a resource. With the improvement of people's awareness of environmental protection and energy conservation, construction, as a high-energy-consuming industry, has attracted much attention; at the same time, the utilization of waste resources and energy conservation and environmental protection are also the current development direction of building materials. [0003] Phosphorus slag has a relatively obvious retarding effect on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B28/08
CPCC04B28/04C04B28/08C04B2201/32C04B2201/50C04B18/145C04B18/08C04B22/064C04B2103/302C04B24/383C04B2103/0057C04B24/2652C04B24/16C04B24/10C04B24/003C04B14/22C04B16/0633
Inventor 兰聪陈景刘永道甘戈金刘其彬卢佳林
Owner 中建西部建设西南有限公司
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