Epoxy mortar adapted in bridge expansion joint and construction method thereof

摘要

An epoxy mortar material for a bridge expansion joint structure and a construction method thereof are provided. The epoxy mortar material includes a liquid A, a liquid B and a filler, wherein diamines D2000 and D230 are mixed to act as the epoxy resin curing agent. The curing agent has low viscosity, good compatibility with epoxy resin, long usable life, high bonding strength, and good flexible and heat shock resistance, so that it is suitable for the epoxy mortar material capable of absorbing the stress. Furthermore, the silicone adhesive is made into the sealing waterstop band, so that the present invention has good water resistant performance; the color of the expansion joint structure is the same as that of the adjacent concrete or asphalt, so that the bridge has beautiful appearance; the expansion joint structure has no tremors while vehicles passing through, noise generated by vehicle driving is lower.

主权项

1. An epoxy mortar material for a bridge expansion joint structure comprising a first liquid, a second liquid and a filler, wherein:
an ingredient of the first liquid comprises bisphenol A-type E-51 epoxy resin, 12-14 alkyl glycidyl ether, and CYH-277 with a mass ratio of 90:10:(10-15); an ingredient of the second liquid comprises curing agent, accelerant, coupling agent, and nonyl phenol with a mass ratio of (25-30):(1-3):(3-5):(50-70); a mass ratio of the first liquid, the second liquid and the filler is 1:1:8; an ingredient of the curing agent by mass percentage comprises 40% D230 and 60% D2000; the accelerant is K54 or DMP-30; the coupling agent is KH-560; the filler is a continuous assembled basalt or slag with a Mohs hardness larger than 5 and a particle size of 0.5-15 mm.