Composite soil adsorbent for preventing high-content soil in concrete from adsorbing poly-carboxylic water reducer, and preparation method and using method of composite soil adsorbent

An adsorbent and concrete technology, applied in the fields of the preparation of the composite soil adsorbent, concrete admixture, and composite soil adsorbent, can solve the problems of reduced adsorption, poor performance of polycarboxylate water reducer, etc., and achieves reduced adsorption , conducive to large-scale production, good water stability

Active Publication Date: 2013-12-25
SHIJIAZHUANG CHANGAN YUCAI BUILDING MATERIALS
View PDF5 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a composite soil adsorbent that absorbs polycarboxylate superplasticizer with high content of soil in shielding concrete, which can reduce the adsorption of the

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite soil adsorbent for preventing high-content soil in concrete from adsorbing poly-carboxylic water reducer, and preparation method and using method of composite soil adsorbent
  • Composite soil adsorbent for preventing high-content soil in concrete from adsorbing poly-carboxylic water reducer, and preparation method and using method of composite soil adsorbent
  • Composite soil adsorbent for preventing high-content soil in concrete from adsorbing poly-carboxylic water reducer, and preparation method and using method of composite soil adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Embodiment 1 (can be in laboratory state): composite soil adsorbent of the present invention is to be made by the raw material of following mass percentage ratio: sodium tripolyphosphate 15%, sodium phosphate 5%, sodium citrate 5%, Aminotrimethylene phosphonic acid 1.5%, cetyltrimethylammonium bromide 0.5%, water 73%.

[0021] The preparation method of the composite soil adsorbent of the present invention comprises the following steps: ①According to the ratio of the above-mentioned raw materials, first add sodium tripolyphosphate and sodium phosphate into the reaction kettle, then add water into the reaction kettle, and stir evenly until the tripolyphosphate Sodium phosphate and sodium phosphate are completely dissolved to obtain a uniform solution; ②Then add sodium citrate and aminotrimethylene phosphonic acid into the solution according to the ratio of the above raw materials, and stir until it is completely dissolved in the solution; ③Finally, according to the above r...

Example Embodiment

[0022] Embodiment 2 (can be in the laboratory state): composite soil adsorbent of the present invention is to be made from the raw material of following mass percentage ratio: sodium phosphate 10%, sodium silicate 5%, sodium carbonate 5%, citric acid Sodium 5%, hydroxyethylidene diphosphonic acid 2.5%, dodecyldimethylbenzyl ammonium bromide 0.5%, water 72%.

[0023] The preparation method of composite soil adsorbent of the present invention comprises the following steps: 1. according to the proportioning of above-mentioned raw materials, sodium phosphate, sodium silicate, sodium carbonate are first added in the reactor, then add water in the reactor, stir until Dissolve sodium phosphate, sodium silicate, and sodium carbonate completely to obtain a uniform solution; ② then add sodium citrate and hydroxyethylidene diphosphonic acid into the solution according to the ratio of the above raw materials, and stir until it is completely dissolved in the solution; ③ Finally, add dodecyld...

Example Embodiment

[0024] Embodiment 3 (can be in the laboratory state): composite soil adsorbent of the present invention is to be made by the raw material of following mass percentage ratio: sodium tripolyphosphate 10%, sodium phosphate 5%, sodium humate 5%, Sodium gluconate 5%, aminotrimethylene phosphonic acid 2.5%, dodecyldimethylbenzyl ammonium bromide 0.5%, water 72%.

[0025] The preparation method of the composite soil adsorbent of the present invention comprises the following steps: ①according to the ratio of the above-mentioned raw materials, sodium tripolyphosphate, sodium phosphate, and sodium humate are first added to the reaction kettle, and then water is added in the reaction kettle, and stirred Uniformly until sodium tripolyphosphate, sodium phosphate, and sodium humate are completely dissolved to obtain a uniform solution; ② Then add sodium gluconate and aminotrimethylene phosphonic acid into the solution according to the ratio of the above raw materials, and stir until it is co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention provides a composite soil adsorbent for preventing high-content soil in concrete from adsorbing a poly-carboxylic water reducer, and a preparation method and using method of the composite soil adsorbent. The composite soil adsorbent is prepared from the following raw materials by mass percent: 10 to 20% of a dispersion thinner, 5 to 10% of a retarder, 0.5 to 2.5% of an ion complexing agent, 0.2 to 0.5% of a surfactant and the balance of water. The preparation method comprises the following steps: stirring the dispersion thinner and water in a reaction kettle until the dispersion thinner is dissolved completely to obtain an even solution; adding the retarder and the ion complexing agent, and stirring until the retarder and the complexing agent are dissolved completely; finally, adding the surfactant, heating by a water bath, and stirring uniformly, so as to obtain a product. The using method comprises that the mixing amount of the composite soil adsorbent which is used cooperatively with a poly-carboxylic water reducer mother solution or replaces a part of the poly-carboxylic water reducer mother solution is 0.2 to 0.5% of that of a cementing material. By adoption of the composite soil adsorbent, the preparation method and the using method, the adsorbing of the soil to the poly-carboxylic water reducer is reduced, therefore, the comprehensive properties of the concrete are improved remarkably, and the problem of poor usability of the poly-carboxylic water reducer in the concrete with high soil content is solved.

Description

technical field [0001] The invention relates to a concrete admixture, in particular to a composite soil adsorbent for shielding high-content soil in concrete to absorb a polycarboxylate water reducer, and belongs to the technical field of building materials. The invention also relates to a preparation method and a use method of the composite soil adsorbent. Background technique [0002] In recent years, polycarboxylate superplasticizers have been favored by people in the concrete industry due to their high water reducing rate, high slump retention and environmental protection. However, in the actual application process of polycarboxylate superplasticizer, it is found that the adverse effect of soil on concrete mixed with polycarboxylate superplasticizer is very prominent. At present, the quality of coarse and fine aggregates used in concrete preparation in my country is relatively unstable, especially the crushed stone and machine-made sand used, which have high mud content...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C04B24/12
Inventor 万甜明苏荣叶子王进春康静刘江涛
Owner SHIJIAZHUANG CHANGAN YUCAI BUILDING MATERIALS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap