Resin composition for CRTS (China Rail Traffic Summit) I type slab ballastless track and preparation method of resin composition

Abstract

The invention provides a resin composition and a preparation method of the resin composition. The resin composition comprises a component A, a component B and a component C, wherein the component A comprises the following substances in parts by weight: 70-200 parts of vinyl ester resin composition, 0-20 parts of active diluting agent, 0-50 parts of non-rubber toughening agent, 0-30 parts of rubber toughening agent, 0-20 parts of catalyst, 0-5 parts of ultraviolet absorber, 0-5 parts of light stabilizer, 0-5 parts of antioxidant, 0-5 parts of coupling agent and 0-50 parts of thixotropic agent; the component B comprises the following substance in parts by weight: 1-100 parts of peroxide initiator; the component C comprises the following substances in parts by weight: 120-500 parts of quartz sand and 0-200 parts of rubber particle; and the vinyl ester resin composition comprises vinyl ester resin polymer. The resin composition is matched with a CA mortar layer in performance and is previously prepared, a line with subgrade differential settlement of being over 30 mm can be conveniently and quickly maintained within actual maintenance skylight time, and the original line track structure is restored after the skylight is finished, and the traffic safety is guaranteed.

Description

technical field [0001] The invention relates to a resin composition used for filling, in particular to a resin composition used for rapid maintenance of CRTS type slab ballastless track settling and lifting and a preparation method thereof. Background technique [0002] In order to solve the problem of insufficient passenger transport capacity of my country's railway system, my country has formulated the "China Railway Medium and Long-term Development Plan", which requires that by 2020, my country will build 10,000 kilometers of passenger dedicated lines, forming the skeleton of "four vertical and four horizontal" passenger dedicated lines. The construction of passenger dedicated lines in my country generally adopts the form of high-speed railways, and a large number of high-speed railways in my country have adopted the slab ballastless track, which is one of the most advanced high-speed track structures in the world. CRTS Ⅰ type slab ballastless track, as one of the main sl...

AI Technical Summary

Problems solved by technology

[0012] 1. The ability to adjust the uneven settlement of the subgrade is limited, and it can only adjust the uneven settlement below 30mm;

[0013] 2. The maintenance time is long, and it is difficult to meet the requirements of my country's high-speed railway maintenance skylight point;

[0014] 3. The skylight maintenance point is at night (0:00 to 4:00 o'clock), the ambient temperature is low, the maintenance material takes a long time to cure, and it takes a long time to reach the required strength requirements, which is difficult to meet the requirements of my country's high-speed railway maintenance skylight point for opening to traffic;

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