2019
DOI: 10.3390/app9214496
|View full text |Cite
|
Sign up to set email alerts
|

Abstract: Uneven settlement of high-speed railway subgrade leads to the irregularity of high-speed railway line, which seriously affects high-speed train operation. The skylight point of high-speed railway operation is short and the maintenance time is limited. Therefore, how to quickly lift and repair the ballastless track slab in the subsidence section is an urgent problem to be solved in the maintenance of high-speed railways. The two-component non-aqueous reactive polymer material has the advantages of strong expans… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

0
23
0

Year Published

2020
2020
2022
2022

Publication Types

Select...
9

Relationship

3
6

Authors

Journals

citations
Cited by 26 publications
(23 citation statements)
references
References 13 publications
0
23
0
Order By: Relevance
“…Polyurethane polymer grouting material is mainly composed of polyisocyanate, polyether polyol, a foaming agent, a catalyst, a foam stabilizer, and various other additives. e exothermic curing reaction primarily consists of gel and foaming reactions [16][17][18]. e gel curing reaction occurs between the polyisocyanate -NCO groups and the polyol -OH groups; the foaming reaction results from the reaction of the polyisocyanate -NCO groups and H 2 O to form CO 2 and urea.…”
Section: Polymer Grouting Materialmentioning
confidence: 99%
“…Polyurethane polymer grouting material is mainly composed of polyisocyanate, polyether polyol, a foaming agent, a catalyst, a foam stabilizer, and various other additives. e exothermic curing reaction primarily consists of gel and foaming reactions [16][17][18]. e gel curing reaction occurs between the polyisocyanate -NCO groups and the polyol -OH groups; the foaming reaction results from the reaction of the polyisocyanate -NCO groups and H 2 O to form CO 2 and urea.…”
Section: Polymer Grouting Materialmentioning
confidence: 99%
“…After a series of chemical reactions, the polymer grouting material changed from a liquid to a foam with a certain strength, resulting in a phase change [19][20][21].…”
Section: Phase Change Processmentioning
confidence: 99%
“…11 RHPU grouting materials with sufficient strength are required in practical engineering because those with insufficient strength will undergo compression deformation during subsequent service, which can cause the enhanced roadbeds to settle again. 12,13 Numerous studies have been conducted to investigate the strength performance of RHPU grouting materials. The influences of density, 14,15 geometry, 16 and size 16 on the yield strength, elastic modulus, and secant modulus of RHPU grouting materials under compression have been experimentally revealed.…”
Section: Introductionmentioning
confidence: 99%