Aliphatic water reducer residual polymer treatment method

An aliphatic water-reducing agent and processing method technology, applied in the chemical field of building materials, can solve problems such as long-term stacking, and achieve the effects of improving concrete plasticity, solving segregation, and ensuring setting time and strength

Active Publication Date: 2021-12-14
科之杰新材料集团河南有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]Based on this, the present invention provides a treatment method for residual polymers of aliphatic water reducers, in order to solve the problem of long-term stacking of residual polymers of aliphatic water reducers At the same time, it also converts residual polymers of aliphatic water reducers into new admixture products

Method used

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  • Aliphatic water reducer residual polymer treatment method
  • Aliphatic water reducer residual polymer treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The residual polymer of the aliphatic water reducer is dried in natural air.

[0053] Jaw crush and ball mill the dried residual polymer of aliphatic water reducer to obtain granular residual polymer of aliphatic water reducer. Add 30% fly ash;

[0054] Sieve the residual polymer of the aliphatic water reducer after grinding, and select the residual polymer of the aliphatic water reducer in a granular form <45 μm as the residual aliphatic water reducer polymer powder;

[0055]According to mass percentage, mechanically mix 75% residual aliphatic water reducer polymer powder, 19% sodium silicate, 5% sodium sulfate, 0.5% methylcellulose and 0.5% sodium lauryl sulfate until uniform, An anti-segregation agent is prepared.

Embodiment 2

[0057] The residual polymer of the aliphatic water reducer is dried in natural air.

[0058] Jaw crush and ball mill the dried residual polymer of aliphatic water reducer to obtain granular residual polymer of aliphatic water reducer. Add 20% mineral powder;

[0059] Sieve the residual polymer of the aliphatic water reducer after grinding, and select the residual polymer of the aliphatic water reducer in a granular form <45 μm as the residual aliphatic water reducer polymer powder;

[0060] Mechanically mix 75% residual aliphatic water reducer polymer powder, 19% sodium silicate, 5% sodium carbonate, 0.5% hydroxypropyl methylcellulose and 0.5% sodium lauryl sulfate by mass percentage Until it is uniform, the anti-segregation agent is prepared.

Embodiment 3

[0062] The residual polymer of the aliphatic water reducer is dried at a low temperature.

[0063] Jaw crush and ball mill the dried residual polymer of aliphatic water reducer to obtain granular residual polymer of aliphatic water reducer. Add 30% limestone powder;

[0064] Sieve the residual polymer of the aliphatic water reducer after grinding, and select the residual polymer of the aliphatic water reducer in a granular form <45 μm as the residual aliphatic water reducer polymer powder;

[0065] According to mass percentage, 70% of residual aliphatic water reducer polymer powder, 28% sodium silicate, 1.0% hydroxymethyl cellulose and 1.0% sodium dodecylbenzenesulfonate were mechanically mixed until uniform, and prepared Anti-segregation agent.

[0066] Application of anti-segregation agent

[0067] The anti-segregation agent prepared in Examples 1-3 and the blank sample without anti-segregation agent were compared to test the effect. According to GB8076-2008 "Concrete Ad...

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Abstract

The invention relates to an aliphatic water reducer residual polymer treatment method, which comprises the steps of: drying, crushing and grinding an aliphatic water reducer residual polymer to obtain a granular aliphatic water reducer residual polymer; screening the ground aliphatic water reducer residual polymer, and selecting the granular aliphatic water reducer residual polymer with the particle size of less than 45 microns as residual aliphatic water reducer polymer powder; and mechanically mixing the residual aliphatic water reducer polymer powder with a synergist, a plasticizer and an air entraining agent until the mixture is uniform to obtain an anti-segregation agent. According to the aliphatic water reducer residual polymer treatment method, the problem of long-term stacking of the aliphatic water reducer residual polymer is solved, and the aliphatic water reducer residual polymer is converted into a new additive product.

Description

technical field [0001] The invention relates to the technical field of chemical engineering of building materials, in particular to a method for treating residual polymers of aliphatic water reducers. Background technique [0002] Aliphatic water reducers have the characteristics of wide source of raw materials, simple production process, high water reducing rate, and good adaptability to cement, etc., and are widely used in the concrete production process. Abnormal production of aliphatic water reducers and condensation reactions during storage of aliphatic water reducers will produce residual polymers of aliphatic water reducers. [0003] For the residual polymer of aliphatic water reducer, there is no effective and feasible treatment method at present, and the residual polymer of aliphatic water reducer can only be temporarily piled up and disposed of extensively. [0004] Since the residual polymer of aliphatic water reducer is insoluble in water, it cannot be directly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38
CPCC04B40/0039C04B24/28C04B24/383C04B24/16C04B22/147C04B12/04C04B18/08C04B22/10C04B18/12C04B14/28Y02W30/91
Inventor 刘尊玉杜可禄李祥河
Owner 科之杰新材料集团河南有限公司
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