Bond Strength and Flexural Capacity of Normal Concrete Beams Strengthened with No-Slump High-Strength, High-Ductility Concrete
This study investigates the flexural behavior of normal-strength concrete (NSC) beams that were strengthened with no-slump, high-strength, high-ductility concrete (NSHSDC). A set of slant shear tests was performed to investigate the initial performance of the NSC substrate strengthened with NSHSDC....
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-09-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/13/19/4218 |
| _version_ | 1797552871846182912 |
|---|---|
| author | Tian-Feng Yuan Se-Hee Hong Hyun-Oh Shin Young-Soo Yoon |
| author_facet | Tian-Feng Yuan Se-Hee Hong Hyun-Oh Shin Young-Soo Yoon |
| author_sort | Tian-Feng Yuan |
| collection | DOAJ |
| description | This study investigates the flexural behavior of normal-strength concrete (NSC) beams that were strengthened with no-slump, high-strength, high-ductility concrete (NSHSDC). A set of slant shear tests was performed to investigate the initial performance of the NSC substrate strengthened with NSHSDC. Slant shear tests considered two types of roughness of interface and five angles of the interface between NSC and NSHSDC. The test results showed that except for specimens with a 75° interface angle, the specimens with high roughness were conformed to the properties (14–21 MPa for 28 days) of the ACI Committee 546 recommendation. For flexural strength tests, NSC beams strengthened with an NSHSDC jacket on the top and bottom sides, three sides, and four sides resulted in strength increments of about 8%, 29%, and 40%, respectively, compared to the beams without NSHSDC jacket. Therefore, the use of NSHSDC is an effective method to improve the performance of NSC beams and is recommended for strengthening reinforced concrete members. |
| first_indexed | 2024-03-10T16:07:11Z |
| format | Article |
| id | doaj.art-f50f11f5eb2f4f23ab51755c2a0bf53f |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T16:07:11Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-f50f11f5eb2f4f23ab51755c2a0bf53f2023-11-20T14:50:17ZengMDPI AGMaterials1996-19442020-09-011319421810.3390/ma13194218Bond Strength and Flexural Capacity of Normal Concrete Beams Strengthened with No-Slump High-Strength, High-Ductility ConcreteTian-Feng Yuan0Se-Hee Hong1Hyun-Oh Shin2Young-Soo Yoon3School of Civil, Environmental and Architectural Engineering, Korea University, 145 Anam-Ro, Seongbuk-Gu 02841, KoreaSchool of Civil, Environmental and Architectural Engineering, Korea University, 145 Anam-Ro, Seongbuk-Gu 02841, KoreaDepartment of Agricultural and Rural Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, KoreaSchool of Civil, Environmental and Architectural Engineering, Korea University, 145 Anam-Ro, Seongbuk-Gu 02841, KoreaThis study investigates the flexural behavior of normal-strength concrete (NSC) beams that were strengthened with no-slump, high-strength, high-ductility concrete (NSHSDC). A set of slant shear tests was performed to investigate the initial performance of the NSC substrate strengthened with NSHSDC. Slant shear tests considered two types of roughness of interface and five angles of the interface between NSC and NSHSDC. The test results showed that except for specimens with a 75° interface angle, the specimens with high roughness were conformed to the properties (14–21 MPa for 28 days) of the ACI Committee 546 recommendation. For flexural strength tests, NSC beams strengthened with an NSHSDC jacket on the top and bottom sides, three sides, and four sides resulted in strength increments of about 8%, 29%, and 40%, respectively, compared to the beams without NSHSDC jacket. Therefore, the use of NSHSDC is an effective method to improve the performance of NSC beams and is recommended for strengthening reinforced concrete members.https://www.mdpi.com/1996-1944/13/19/4218no-slump, high-strength, high-ductility concretenormal-strength concrete beamsroughnessinterfacial shear strengthflexural strengthening |
| spellingShingle | Tian-Feng Yuan Se-Hee Hong Hyun-Oh Shin Young-Soo Yoon Bond Strength and Flexural Capacity of Normal Concrete Beams Strengthened with No-Slump High-Strength, High-Ductility Concrete Materials no-slump, high-strength, high-ductility concrete normal-strength concrete beams roughness interfacial shear strength flexural strengthening |
| title | Bond Strength and Flexural Capacity of Normal Concrete Beams Strengthened with No-Slump High-Strength, High-Ductility Concrete |
| title_full | Bond Strength and Flexural Capacity of Normal Concrete Beams Strengthened with No-Slump High-Strength, High-Ductility Concrete |
| title_fullStr | Bond Strength and Flexural Capacity of Normal Concrete Beams Strengthened with No-Slump High-Strength, High-Ductility Concrete |
| title_full_unstemmed | Bond Strength and Flexural Capacity of Normal Concrete Beams Strengthened with No-Slump High-Strength, High-Ductility Concrete |
| title_short | Bond Strength and Flexural Capacity of Normal Concrete Beams Strengthened with No-Slump High-Strength, High-Ductility Concrete |
| title_sort | bond strength and flexural capacity of normal concrete beams strengthened with no slump high strength high ductility concrete |
| topic | no-slump, high-strength, high-ductility concrete normal-strength concrete beams roughness interfacial shear strength flexural strengthening |
| url | https://www.mdpi.com/1996-1944/13/19/4218 |
| work_keys_str_mv | AT tianfengyuan bondstrengthandflexuralcapacityofnormalconcretebeamsstrengthenedwithnoslumphighstrengthhighductilityconcrete AT seheehong bondstrengthandflexuralcapacityofnormalconcretebeamsstrengthenedwithnoslumphighstrengthhighductilityconcrete AT hyunohshin bondstrengthandflexuralcapacityofnormalconcretebeamsstrengthenedwithnoslumphighstrengthhighductilityconcrete AT youngsooyoon bondstrengthandflexuralcapacityofnormalconcretebeamsstrengthenedwithnoslumphighstrengthhighductilityconcrete |