Application of Hydrophilic Silanol-Based Chemical Grout for Strengthening Damaged Reinforced Concrete Flexural Members

Materials

Hyunjin Ju¹  Deuck Hang Lee¹  Hae-Chang Cho¹  Kang Su Kim¹  Seyoon Yoon² 

[1] Department of Architectural Engineering, University of Seoul, 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul 130-743, Korea; E-Mails:;School of Engineering, University of Aberdeen, 361 Fraser Noble Building, King’s College, Aberdeen AB24 3UE, UK; E-Mail:

关键词: strengthening;    HCGS;    partial interaction;    flexural behavior;    silanol;   

DOI  :  10.3390/ma7064823

来源: mdpi

【 摘 要 】

In this study, hydrophilic chemical grout using silanol (HCGS) was adopted to overcome the performance limitations of epoxy materials used for strengthening existing buildings and civil engineering structures. The enhanced material performances of HCGS were introduced, and applied to the section enlargement method, which is one of the typical structural strengthening methods used in practice. To evaluate the excellent structural strengthening performance of the HCGS, structural tests were conducted on reinforced concrete beams, and analyses on the flexural behaviors of test specimens were performed by modified partial interaction theory (PIT). In particular, to improve the constructability of the section enlargement method, an advanced strengthening method was proposed, in which the precast panel was directly attached to the bottom of the damaged structural member by HCGS, and the degree of connection of the test specimens, strengthened by the section enlargement method, were quantitatively evaluated by PIT-based analysis.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.