A kind of steel bridge epoxy asphalt mixture and its preparation and use method

A technology of bridge epoxy asphalt and epoxy asphalt, which is applied in the field of steel bridge epoxy asphalt mixture, can solve the problems of complex construction process and high price, and achieve the effect of simple production process, low production cost and excellent anti-rutting performance

Active Publication Date: 2017-04-19
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the epoxy asphalt currently used in my country is imported from the United States, and its main disadvantages are high price and complicated construction process
However, domestic research on epoxy asphalt is still in its infancy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Step 1: Preparation of component B of steel bridge epoxy asphalt mixture: heat 85 parts of asphalt to 110 ° C, then add 10 parts of high molecular polymer, stir and heat up to 180 ° C, then stir for 2 hours, then cool down to 125 ℃, then add 5 parts of maleic anhydride, 8 parts of oleic acid, 14 parts of monohydric alcohol or polyol and 0.5 part of initiator, stir for 30 minutes, then add 50 parts of aliphatic dibasic acid, dimer acid or trimer acid And 40 parts of curing agent and 15 parts of filler, after stirring for 1.5 hours, then add 0.6 parts of curing accelerator, after stirring for 1 hour, raise the temperature to 160°C, and then continue stirring for 2 hours, then cool down and discharge to obtain component B .

[0032] The second step: mixing epoxy asphalt binder and aggregate. Add the 160 parts of ordinary aggregate and 620 parts of light aggregate into the mixing building, set the temperature at 130°C, and then heat component A to 80°C and component B acco...

Embodiment 2

[0038] Step 1: Preparation of component B of steel bridge epoxy asphalt mixture. Raise the temperature of 95 parts of asphalt to 110°C, then add 4 parts of high molecular polymer, stir to raise the temperature to 180°C, and then stir for 2.0 hours; then lower the temperature to 125°C, add 3 parts of maleic anhydride, 5 parts of oleic acid, 6 parts of monohydric alcohol or polyalcohol and 0.2 part of initiator, stirred for 30 minutes; then add 45 parts of aliphatic dibasic acid, dimer acid or trimer acid and 30 parts of curing agent and 10 parts of filler, Stir for 2 hours; finally add 0.2 parts of curing accelerator, stir for 1 hour, and raise the temperature to 158°C, stir for 2 hours, cool down and discharge to obtain component B.

[0039] The second step: mixing epoxy asphalt binder and aggregate. Put the 180 ordinary aggregate and 640 light aggregate into the mixing building, set the temperature at 130°C, and then heat component A to 90°C and component B to 120°C accordin...

Embodiment 3

[0045] Step 1: Preparation of component B of steel bridge epoxy asphalt mixture. Heat 60 parts of asphalt to 110°C, then add 12 parts of high molecular weight polymer, stir to raise the temperature to 175°C, and stir for 2.0 hours; then cool down to 125°C, add 7 parts of maleic anhydride, 9 parts of oleic acid, 16 parts of monohydric alcohol or polyalcohol and 1 part of initiator, stirred for 30 minutes; then add 56 parts of aliphatic dibasic acid, dimer acid or trimer acid and 75 parts of curing agent and 20 parts of filler, Stir for 1 hour; finally add 0.85 parts of curing accelerator, stir for 1 hour, and raise the temperature to 158°C, stir for 2 hours, cool down and discharge to obtain component B.

[0046] The second step: mixing epoxy asphalt binder and aggregate. Put the 100 parts of ordinary aggregate and 650 parts of light aggregate into the mixing building, set the temperature at 110°C, and then heat component A to 92°C according to the ratio of A:B=1:3.65, and com...

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PUM

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Abstract

The invention discloses an epoxy asphalt mixture of a steel bridge as well as a preparation method and a use method thereof. The mixture comprises a component A, a component B and aggregates, wherein the mass ratio of the component A to the component B is (1 to 3.65) to (1 to 8.6); the component A is epoxy resin; the component B is prepared from the following raw materials in parts by mass: 60-100 parts of asphalt, 2-12 parts of high-molecular polymer, 1-7 parts of maleic anhydride, 4-16 parts of monohydric alcohol or polyhydric alcohol, 4-9 parts of oleic acid, 0.15-1 part of an initiator, 30-56 parts of aliphatic dibasic acid, dimeric acid or trimeric acid, 25-55 parts of a curing agent, 5-20 parts of fillers and 0.15-0.85 part of a curing accelerator; the aggregates are prepared from the following raw materials in parts by mass: 100-220 parts of general aggregates and 600-650 parts of light aggregates. The mixture has the advantages of mechanical properties such as high-temperature rutting resistance, low-temperature brittle rupture resistance, rainwater damage resistance, tensile strength, break elongation rate and the like, and is friendly to the construction environment, high in construction applicability, simple in production and construction process, low in production cost, quick in traffic opening and suitable for paving of large-span steel bridge surface, construction of urban trunk roads and the like.

Description

technical field [0001] The invention relates to a steel bridge pavement material and its preparation and use method, in particular to a steel bridge epoxy asphalt mixture and its preparation and use method. Background technique [0002] As a road and bridge pavement material, epoxy asphalt is a thermosetting modified asphalt material. A small amount of epoxy resin is added to the asphalt, and a curing reaction occurs with a curing agent to form a firm network cross-linked product. This curing reaction makes the asphalt From thermoplastic to thermosetting, and then mixed with aggregate, the obtained epoxy asphalt mixture has properties such as high strength, excellent fatigue resistance, good durability and anti-aging properties. Epoxy asphalt mixture is widely used in the pavement of high-grade highways and long-span steel bridge decks. It is an ideal material for steel bridge deck pavement, pavement wear layers, and super-heavy traffic roads, and its application range is be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26C04B24/28
Inventor 段文锋李善法常英刘金景田凤兰
Owner BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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