Epoxy asphalt and preparation method thereof, as well as concrete containing same
An epoxy bitumen and bitumen technology, applied in building components, building insulation materials, buildings, etc., can solve problems such as segregation, and achieve the effects of simplified process, uniform and stable performance, and good compatibility.
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[0022] According to a typical implementation of the present invention, the epoxy asphalt includes A component and B component with a mass ratio of 1:4 to 6, wherein, A component includes the following components in parts by weight: 100 parts of epoxy resin , 0-20 parts of epoxy resin thinner; B component includes the following components in parts by weight: 400-500 parts of anhydride-modified asphalt, 10-50 parts of alicyclic acid anhydride, 50-100 parts of aliphatic dimer anhydride , 10-50 parts of polyether polyol, 0-5 parts of epoxy resin curing accelerator. Starting from the compatibility of epoxy asphalt, the present invention adopts aliphatic dimer anhydride as the main curing agent with good compatibility with asphalt. Since the aliphatic dimer anhydride has excellent curing toughness but insufficient strength, it is supplemented by aliphatic dimer anhydride. Anhydrides increase the strength of epoxy bitumen. The epoxy asphalt material prepared by adopting the technica...
Embodiment 1
[0030] Put 400 parts of anhydride-modified asphalt heated to 90-130°C into the reactor, and at the same time mix 35 parts of polyglutaric anhydride, 30 parts of polyazelaic anhydride, 35 parts of polyeicosane diacid anhydride, tetrahydrobenzene 5 parts of diformic anhydride, 5 parts of nadic anhydride, 10 parts of polytetrahydrofuran glycol, and 1 part of epoxy resin curing accelerator were stirred evenly until the viscosity of the system was uniform to prepare component B. Put 100 parts of E-51 epoxy resin heated to 60-70°C into a container, stir evenly and place until the system has uniform viscosity, transparent color and no bubbles, and then component A is prepared. Add component A to component B and stir evenly to obtain the epoxy asphalt material for steel box girder bridges. Mix stones, compact and keep warm for 5 hours to prepare epoxy asphalt concrete. The performance of the material itself and the performance of the prepared epoxy asphalt concrete are shown in Table...
Embodiment 2
[0032] Put 420 parts of anhydride-modified asphalt heated to 90-130 ° C into the reactor, and at the same time, 35 parts of polyglutaric anhydride, 20 parts of polyazelaic anhydride, 15 parts of polyeicosane diacid anhydride, polyisobutylene butanedi 15 parts of acid anhydride, 14 parts of nadic acid anhydride, 20 parts of polytetrahydrofuran glycol, 2 parts of epoxy resin curing accelerator and stir evenly until the viscosity of the system is uniform to prepare component B. Put 90 parts of E-51 epoxy resin heated to 60-70°C into a container, add 10 parts of epoxy reactive diluent, stir evenly and place until the system has uniform viscosity, transparent color and no bubbles, and then component A is prepared. Add component A to component B and stir evenly to obtain the epoxy asphalt material for steel box girder bridges. Mix stones, compact and keep warm for 5 hours to prepare epoxy asphalt concrete. The performance of the material itself and the performance of the prepared e...
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