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Stabilizer for road base mixture and construction method of stabilizer

A technology of road base and construction method, applied in the direction of roads, roads, cement production, etc., to achieve the effects of alleviating cracks, enhancing water stability, and improving sensitivity

Pending Publication Date: 2022-01-04
山西省交通科技研发有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the present invention, non-cement cementing materials such as fly ash, slag powder, calcium carbide slag powder and sepiolite powder are used to replace the cement used in the traditional road base mixture stabilizer, which can effectively relieve dryness caused by excessive cement hydration. Shrinkage, temperature shrinkage cracking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Preparation of premix: 100 g of sulfonated waste oil, 40 g of 300 mesh chlorite powder, and 40 g of α-cyclodextrin were mixed.

[0020] The preparation process of sulfonated waste oil is as follows: (1) pretreatment of waste oil, the collected waste oil is left standing at a low temperature of 10°C to remove impurities and animal fat; (2) in ice water environment, 100g pre-treated Add 16.0g of oleum to the treated waste oil drop by drop, and quickly disperse; after the dropwise addition, slowly raise the temperature to 60°C, and keep warm for 4.5h; (3) After the reaction, add sodium hydroxide solution to adjust the pH value 7; (4) add water to fully dilute the reactant, separate the lower brown liquid, and distill under reduced pressure.

[0021] (2) Main ingredients: Mix and disperse 45g fly ash, 40g mineral powder, 10g carbide slag powder and 5g sepiolite powder evenly.

[0022] (3) Excipients: 1.0 g of sodium sulfate, 0.15 g of triethanolamine, and 0.85 g of alk...

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PUM

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Abstract

The invention discloses a stabilizer for a road base mixture and a construction method of the stabilizer. The non-cement cementing materials such as fly ash, mineral powder, carbide slag powder and sepiolite powder are used for replacing cement used in traditional road base mixture stabilizers, and the problems of dry shrinkage and temperature shrinkage cracking caused by too fast cement hydration and the like can be effectively solved. Besides, in combination with the auxiliary effects of organic or biological admixtures such as sulfonated oil, iron powder, chlorite powder, cyclodextrin and alkali-resistant bio-enzyme, the common problem that an inorganic cementing material is sensitive to the soil content is reduced, and the curing defect of cement on a mixture with high soil content is relieved.

Description

technical field [0001] The invention belongs to the technical field of road pavement base construction, and in particular relates to a stabilizer for road base mixture and a construction method thereof. Background technique [0002] Most of the existing road bases or sub-bases are based on cement-stabilized gravel aggregate bases. Cement-stabilized macadam base has good structural integrity and water stability, and has high initial and late strength. It is widely used in various grades of roads, especially in heavy, extremely heavy and extra heavy traffic grades. However, during the long-term use of cement-stabilized bases, common quality problems such as dry shrinkage cracks and temperature shrinkage cracks often occur, and cement is more sensitive to soil content, resulting in poor stabilization effect on mixtures with high soil content. Contents of the invention [0003] Aiming at the problems existing in the prior art, the object of the present invention is to provide...

Claims

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Application Information

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IPC IPC(8): C04B28/02C04B7/26E01C3/00E01C3/04
CPCC04B28/021C04B7/26E01C3/003E01C3/04C04B2111/0075C04B18/18C04B22/04C04B24/38C04B24/14C04B24/122C04B22/147Y02P40/10
Inventor 崔东霞杜育刚蔡丽娜孙亚芳郝国利王超郭赢赢
Owner 山西省交通科技研发有限公司