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A kind of asphalt-based concentrated cover material and its preparation method and sand mist-containing sealing layer mixture

A kind of asphalt-based and fabric technology, which is applied in the field of asphalt-based concentrated cover material and its preparation, and the mixture of sand-mist seal layer, which can solve the problem of low viscosity of modified emulsified asphalt, difficult to suspend sand, and improve the sand-mist seal layer Material construction cost and other issues

Active Publication Date: 2020-01-14
江苏西尔玛道路环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the low viscosity of conventional modified emulsified asphalt, generally in the range of 1.6 to 302 centipoise (cP value), it is difficult to achieve the effect of suspending sand when mixed with fine-grained sand, and it is necessary to rely on adding special additives to increase the viscosity to The range of 550-800 centipoise can achieve a stable and uniform suspended sand effect
The market price of this kind of stable suspended sand additive is generally 20,000 to 30,000 yuan / ton, which virtually increases the construction cost of the sand mist-containing sealant

Method used

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Examples

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preparation example Construction

[0028] The present invention also provides a preparation method of the asphalt-based concentrated cover material described in the above technical solution, comprising the following steps:

[0029] (1) mixing the emulsifier with part of the water to obtain an emulsion;

[0030] (2) mixing the emulsion obtained in the step (1) with pottery clay to obtain mud type emulsified soap;

[0031] (3) Mixing the mud-type emulsified soap liquid obtained in the step (2) with asphalt and remaining water in sequence to obtain the asphalt-based concentrated cover material.

[0032] In the present invention, the emulsifier is mixed with part of the water to obtain the emulsified liquid. In the present invention, based on 100 parts of pitch, the part of water preferably has a mass of 120-200 parts, more preferably 140-180 parts. In the present invention, the temperature of the water is preferably 90-95°C, more preferably 93°C.

[0033] In the present invention, there is no special limitation...

Embodiment 1

[0052] Clay (SiO 2 62~70%, Al 2 o 3 17~23%, Fe 2 o 3 2.5~5.3%, CaO+MgO 1~2%, K 2 O+Na 2 O2~3%, refractoriness is 1508~1545℃, expansion coefficient is 28ml / 2g, colloid value is 40%, particle size is 300 mesh): 35 parts, asphalt (road petroleum asphalt, softening point is 58℃): 100 parts , hot water: 120 parts, sodium stearate: 5 parts, cold water: 40 parts;

[0053] Specific process steps and process:

[0054] Step 1: fully stir the emulsifier and hot water (90°C) (rotate at 100r / min, stir for 3min).

[0055] Step 2: Add a specified amount of pottery clay into the mixed solution formed by emulsifier and water and continue to stir (rotating speed 280r / min, stirring for 7min), and stir evenly to make a mud-type emulsified soap liquid.

[0056] Step 3: Add hot asphalt (135°C) into the mixing tank, and stir until the asphalt is added (rotating speed 280r / min, stirring for 20min).

[0057] Step 4: Add 40 parts of cold water to adjust the viscosity and control the viscosity ...

Embodiment 2

[0062] Clay: 36 parts (SiO 2 62~70%, Al 2 o 3 17~23%, Fe 2 o 3 2.5~5.3%, CaO+MgO1~2%, K 2 O+Na 2 O 2~3%, refractoriness is 1508~1545℃, expansion coefficient is 30ml / 2g, colloid value is 40%, particle size is 325 mesh), asphalt (road petroleum asphalt, softening point is 58℃): 110 parts, heat Water: 150 parts, sodium didodecyl phenyl ether disulfonate: 6 parts, cold water: 20 parts;

[0063] Specific process steps and process:

[0064] Step 1: fully stir the emulsifier and hot water (93°C) (rotate at 100r / min, stir for 5min).

[0065] Step 2: Add a specified amount of pottery clay into the mixture of emulsifier and water and continue to stir (300r / min, stirring for 7min), and stir evenly to make a mud-type emulsified soap.

[0066] Step 3: Add hot asphalt (130°C) into the mixing tank, and stir until the asphalt is added (rotating speed 280r / min, stirring for 25min).

[0067] Step 4: Add 20 parts of cold water to adjust the viscosity and control the viscosity range from...

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Abstract

The invention provides an asphalt-based concentrated pavement-sealing material, as well as a preparation method thereof and a sand-containing fog sealing layer mixture. The asphalt-based concentratedpavement-sealing material is prepared from the following raw materials in parts by mass: 100 parts of asphalt, 5-8 parts of an emulsifier, 30-50 parts of argil, and 150-250 parts of water. According to the asphalt-based concentrated pavement-sealing material provided by the invention, the argil, the emulsifier and the water are utilized to form a mud-type emulsifying soap liquid to emulsify the asphalt, the components are combined with one another to form a unified whole, and therefore consistence and stability of emulsified asphalt are improved; and experimental results show that the viscosity of the asphalt-based concentrated pavement-sealing material provided by the invention is 1400-2300 cP.

Description

technical field [0001] The invention relates to the technical field of road maintenance, in particular to an asphalt-based concentrated cover material, a preparation method thereof, and a sand mist-containing seal layer mixture. Background technique [0002] Sand mist sealing layer technology originated from the early road protection technology, and gradually developed into an excellent preventive maintenance method. Sand-containing mist seal technology breaks the traditional construction process of fog seal technology. Fine-grained sand is mixed with modified emulsified asphalt, and special component additives are added to make it evenly and stably suspended, and then sprayed on the road surface through high-pressure equipment, saving The two-step process of sanding and rubber wheel rolling after the event is eliminated, and because the fine-grained sand is fully covered by the mortar, it is more uniform, firm and stable than sanding and rolling. [0003] However, due to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26C04B111/28C04B111/34
CPCC04B26/26C04B2111/00293C04B2111/00482C04B2111/0075C04B2111/28C04B2111/343C04B24/124C04B14/10C04B14/06
Inventor 刘超杨成龙
Owner 江苏西尔玛道路环保材料有限公司