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Non-ionic asphalt warm mixing agent and preparation method thereof

A non-ionic, warm mix technology, applied in the direction of climate change adaptation, etc., can solve the problems of lack of test methods and example data support, high irritation and toxicity, lower mixing temperature, etc., so as to reduce the emission of smoke and harmful substances , less irritation, the effect of reducing high temperature viscosity

Active Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can effectively reduce the mixing temperature by about 40°C, and the performance indicators of warm-mix asphalt are not lower than those of hot-mix asphalt, but there is a lack of relevant test methods and example data support
In addition, the acid-base catalyst used in this additive is relatively irritating and toxic, which is likely to cause human harm and environmental pollution.

Method used

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  • Non-ionic asphalt warm mixing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The mass percentage of raw material of non-ionic asphalt warm mix agent is:

[0032] Polyethylene oxide-propylene oxide: 0.6%;

[0033] Water-soluble phenolic resin: 0.5%

[0034] Coconut fatty acid diethanolamide: 17.5%;

[0035] Zeolite powder (25 mesh): 14.5%;

[0036] Water: 66.9%.

[0037] Add water to the container according to the proportion, control the temperature at 42°C, add polyethylene oxide-propylene oxide, stir at constant temperature for 30 minutes, add water-soluble phenolic resin, stir at constant temperature for 55 minutes, and then mix coconut oil fatty acid di Add ethanolamide and zeolite powder, raise the temperature to 68°C, and continue stirring for 55 minutes to obtain a nonionic asphalt warm mix agent.

Embodiment 2

[0039] The mass percentage of raw material of non-ionic asphalt warm mix agent is:

[0040] Polyethylene oxide-propylene oxide: 8.5%;

[0041] Alkyl alcohol amide polyoxyethylene ether: 5%;

[0042] Zeolite powder (80 mesh): 7.5%;

[0043] Water: 79.0%.

[0044] Add water to the container according to the ratio, control the temperature at 50°C, add polyethylene oxide-propylene oxide, and stir at constant temperature for 40 minutes, then add alkanolamide polyoxyethylene ether and zeolite powder according to the ratio, and heat up to 78°C, continue to stir for 30 minutes to obtain non-ionic asphalt warm mix agent.

Embodiment 3

[0046] The mass percentage of raw material of non-ionic asphalt warm mix agent is:

[0047]Polyvinyl acetal: 4.5%;

[0048] Polyethylene oxide-propylene oxide: 0.3%

[0049] Alkylphenol ethoxylates: 0.5%

[0050] Fatty acid polyoxyethylene ester: 1.5%;

[0051] Zeolite powder (180 mesh): 2.5%;

[0052] Water: 90.7%.

[0053] Add water to the container according to the proportion, control the temperature at 58°C, add polyvinyl acetal, stir at constant temperature for 55 minutes, add polyethylene oxide-propylene oxide, stir at constant temperature for 45 minutes, and then add alkylphenol according to the proportion Add polyoxyethylene ether, polyoxyethylene fatty acid ester and zeolite powder, raise the temperature to 63°C, and continue stirring for 45 minutes to obtain a nonionic asphalt warm mix agent.

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Abstract

The invention discloses a non-ionic asphalt warm mixing agent and a preparation method thereof. The non-ionic asphalt warm mixing agent comprises the following components in percentage by weight: 0.1-10 percent of a macromolecular component, 0.1-20 percent of a low-molecular component, 1-15 percent of inorganic micro powder and 55-98.8 percent of water. The preparation method comprises the following steps: adding water into a container according to the ratio, adding the macromolecular component, stirring for 0.5-2 hours at constant temperature, controlling the temperature to be 40-60 DEG C, then adding the low-molecular component and the inorganic micro powder according to the ratio, heating to 60-80 DEG C, and continuously stirring for 0.5-1 hour to obtain the non-ionic asphalt warm mixing agent. The non-ionic asphalt warm mixing agent disclosed by the invention can effectively reduce the high-temperature viscosity of asphalt and has the advantages of high dispersion property, stable performance, available raw material, low production cost, simple and convenient preparation method, wide application range and the like.

Description

technical field [0001] The invention relates to an asphalt warm mix agent and a preparation method thereof, in particular to a nonionic asphalt warm mix agent and a preparation method thereof. Background technique [0002] Asphalt mixtures currently used in road engineering are generally divided into two types according to the mixing construction temperature: cold mix asphalt mixture CMA (Cold Mix Asphalt) and hot mix asphalt mixture HMA (Hot Mix Asphalt). Cold-mix asphalt mixture is generally mixed and paved with emulsified asphalt or liquid asphalt and aggregate at room temperature, without heating the aggregate and binder, which can save a lot of energy. However, the initial road performance of cold-mix asphalt mixture is poor, and it is difficult to meet the requirements of important projects such as expressways and heavy-duty traffic roads. Hot mix asphalt mixture is the most widely used mixture with the best road performance. However, in the production process of hot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/24
CPCY02A30/30
Inventor 陈闯宣根海陈保莲范思远张静宁爱民李志军程国香
Owner CHINA PETROLEUM & CHEM CORP
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