Preparation technology and application of fine stone grouting material used in double curved arch bridge strengthened project
XU Haiyuan
SHA Jianfang
ZHANG Yamei
LIU Jianzhong
GUO Fei
Abstract：Aiming at the technical requirements for fine stone grouting materials in the reinforcement of double curved arch bridge,the paper studied the preparation technology and application of grouting material with fine aggregate,by analyzing the characteristics of work performance,mechanical properties and deformation behavior. The results show that the fine stone grouting material had excellent working performance and deformation properties when selecting the gel material system,sand ratio and fine stone content. Prolong the early wet curing time is helpful to improve the expansive performance,for the test piece had no shrinkage after concrete shape 150 days. The fine stone grouting material was successfully used for the arch bridge strengthening project in Nanjing Changjiang River and fulfilled its promise that the fine stone grouting material can filling up the mould and had no shrinkage and cracking.
Keywords：fine stone grouting materialrepairing materialdouble curve arch bridgesstrengthenedworkbilitydeformation properties
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 1-4 )