Normal temperature solidified thermosetting epoxy bitumen material and preparation method thereof

Abstract

The invention provides a normal temperature solidified thermosetting epoxy bitumen material. The normal temperature solidified thermosetting epoxy bitumen material consists of a part A and a part B and is obtained by respectively evenly mixing the part A and the part B, then evenly mixing the part A with the part B and subsequently solidifying at the temperature of 0-60 DEG C, wherein the part A comprises the following components in parts by mass, 25-80 parts of dimer acidic diglycidyl ester and 20-50 parts of epoxy diluting agent; and the part B comprises the following components in parts by mass: 50-300 parts of bitumen and 28-100 parts of organic amine solidifying agent. According to the invention, the part A and the part B are respectively evenly stirred through a colloid mill and then blended and evenly stirred at normal temperature, and finally the mixture is solidified for 1-12 hours at the normal temperature, so as to obtain the thermosetting epoxy bitumen material; the bitumen material can be rapidly solidified at the normal temperature to form a high-strength high-flexibility thermosetting material in no need of complex construction equipment, thus work efficiency is improved, the volatilization of harmful substances in the bitumen is reduced, and the bitumen material provided by the invention is energy-saving and environment-friendly.

Description

technical field [0001] The invention relates to a thermosetting epoxy asphalt material and a preparation method thereof, in particular to a thermosetting epoxy asphalt material cured at room temperature and a preparation method thereof. Background technique [0002] Epoxy asphalt has been successfully used as an orthotropic bridge deck paving material for more than 39 years. Since 1967, more than 120,000 tons have been laid on more than 25 bridge decks, and the total paved area has exceeded 9 million square meters. The excellent fatigue resistance of epoxy asphalt allows it to remain intact on orthotropic steel bridge decks, even after millions of wheel load deflections without cracking. [0003] Two-component epoxy asphalt binder is a thermosetting two-phase blend polymer. That is, it does not melt once solidified. this is very important. Because traditional asphalt starts to melt at certain high temperatures. The newly laid epoxy asphalt pavement will not produce rutt...

AI Technical Summary

Problems solved by technology

[0007]1. Epoxy asphalt materials generally use organic acid anhydride or organic acid as curing agent, which requires high curing temperature and long curing time, which limits the construction in cold seasons and regions At the same time, it is bound to affect the delivery and opening of buildings, roads or bridge decks after epoxy asphalt construction

[0008]2. Due to the high softening point of asphalt, the viscosities of epoxy resin and organic acid anhydride (acid) curing agent are relatively high. It can only be blended and stirred evenly when heated to a very high temperature, and the mixing and blending of asphalt, epoxy resin and curing agent under normal temperature conditions cannot be realized

Therefore, the process of preparing epoxy asphalt materials in the prior art has the disadvantages of high energy consumption, high temperature and high risk.

[0009]3. Since asphalt contains a large amount of volatile carcinogens such as benzopyrene, the existing high-temperature preparation technology of epoxy asphalt materials will cause carcinogens in asphalt to volatilize into the air, it will cause great harm to the health of workers and the atmospheric environment