Rubber modified asphalt warm-mixing agent, preparation method and application

Abstract

The invention discloses a rubber modified asphalt warm-mixing agent, a preparation method and application thereof. The warm-mixing agent comprises the following components in parts by weight: 100 parts of water, 5-30 parts of fatty alcohol sodium sulfate, 15-30 parts of palmitic acid, 5-30 parts of oleic acid, 1-20 parts of sodium dodecyl benzene sulfonate, 1-15 parts of cetyltrimethylammonium chloride and 10-30 parts of imidazoline-type cationic surface active agent ODD. The preparation method comprises the following steps of: adding the water in a container at the temperature of 65 DEG C, and then adding the following substances under the condition of stirring: the fatty alcohol sodium sulfate, the palmitic acid, the oleic acid, the sodium dodecyl benzene sulfonate, the cetyltrimethylammonium chloride and the imidazoline-type cationic surface active agent ODD, and stirring for 15 min to obtain the warm-mixing agent. The warm-mixing agent is directly applied to rubber asphalt or matrix asphalt to reduce the viscosity of the asphalt. The kinematic viscosity of the rubber powder asphalt added with the warm-mixing agent at the temperature of 150 DEG C can reach less than 3.0Pa.s of the kinematic viscosity at the temperature of 180 DEG C, and the production temperature can be reduced by about 30 DEG C, thereby not only preventing the rubber asphalt from being aged but also saving energy and reducing equipment loss.

Description

technical field [0001] The invention relates to a rubber-modified asphalt warm mix agent, a preparation method and application thereof. technical background [0002] Since the reform and opening up for 30 years, my country's road construction has developed rapidly. In the Eleventh Five-Year Plan, my country will pay more attention to the development of roads. Especially since the economic crisis, a large number of infrastructure constructions such as roads are conducive to promoting employment and driving the economy. recovery and development. In highway construction, asphalt pavement has good driving comfort and excellent performance, and the construction speed is fast and the maintenance is convenient. Therefore, asphalt material has become one of the most important construction materials for highway pavement. At the same time, due to the huge consumption of my country's automobile market, the number of waste tires is also increasing. It is estimated that by 2010, the prod...

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Problems solved by technology

[0003] Waste rubber powder modified asphalt has been widely recognized by countries all over the world for its excellent pavement performance. However, the current traditional rubber asphalt production technology has high production temperature (190-218°C), high energy consumption, and serious asphalt aging. The problem of low production efficiency and high viscosity puts forward higher requirements for the production of mixture, paving temperature and construction environment temperature. The generation of a large amount of harmful gas under high temperature will pollute the environment and endanger the health of construction workers.

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