A kind of non-ionic liquid crystal asphalt warm mix agent and preparation method thereof

Abstract

The invention discloses a non-ionic liquid crystal asphalt warm mixing agent and a preparation method thereof. The asphalt warm mixing agent comprises the following components in parts by weight: 3.5-55.5 parts of polyglycerol fatty acid ester, 0.1-20 parts of fatty alcohol and 24.5-96.4 parts of water. The preparation method comprises the following steps: (1) uniformly mixing water and polyglycerol fatty acid ester in a container according to the ratio; (2) adding fatty alcohol into the mixture obtained in the step (1) for uniform mixing, and leaving the mixture to stand for a period of time to obtain the non-ionic liquid crystal asphalt warm mixing agent. The non-ionic liquid crystal asphalt warm mixing agent disclosed by the invention can effectively reduce the high-temperature viscosity of asphalt and has the advantages of stable performance, available raw material, 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 non-ionic liquid crystal type asphalt warm mix agent and a preparation method thereof. Background technique [0002] Since asphalt was used in roads, the mature asphalt mixture is mainly hot mix asphalt mixture. However, hot mix asphalt mixture has defects such as high mixing temperature and paving temperature, high emission of harmful gases, and easy aging of asphalt mixture. , resulting in many ecological and environmental problems. Warm mix asphalt mixture is a new material that is environmentally friendly and energy-saving. It has the same or even better road performance as the corresponding hot mix asphalt mixture, but it can be mixed and paved at a lower temperature, which greatly reduces the The energy consumption and soot emission in the production process have significantly improved the economic benefits and ecological value. Compared with...

AI Technical Summary

Problems solved by technology

However, it is inevitable that some water will remain between the asphalt and aggregate interface during the production process, making the asphalt mixture potentially water-damaged

Moreover, if the amount of water added is too large, a large amount of water vapor will be generated or bumping will occur. If the amount of water is too small, the foaming effect will be poor.

[0005] At present, the domestically developed warm mix asphalt additive products are mainly organic and surface active, such as the published patent CN102093731A, patent CN102408602A, patent CN101899218A, patent CN101831187A, patent CN102795801A, etc. Although domestically developed warm mix asphalt additive products are basically It can achieve the cooling effect of similar foreign products and can successfully produce warm mix asphalt mixture, but there are inevitably defects such as complex production process, high energy consumption, and reduced performance of asphalt mixture

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