| Title |
Mechanical and Durability Characteristics of Latex-Modified Concrete Using Ultra Rapid Hardening Cement |
| Authors |
Park, Sang-Hyun ; Jung, Si-young ; Kim, Hyun-yu ; Choi, Kyoung-Kyu |
| DOI |
https://doi.org/10.5659/JAIK_SC.2019.35.5.153 |
| Keywords |
Mechanical characteristics ; Durability characteristics ; Latex-modified concrete ; Ultra rapid hardening cement |
| Abstract |
The purpose of this study was to investigate the mechanical and durability characteristics of latex-modified concrete using ultra rapid
hardening cement : four types of mechanical tests including compressive strength, modulus of elasticity, flexural strength and bond strength
were performed; and seven types of durability tests including resistance of concrete to chloride ion penetration, freeze-thaw resistance, scaling
resistance, coefficient of thermal expansion, cracking tendency, abrasion resistance and drying shrinkage were performed. Required material
performance of each test was determined in accordance with the Korea specification for repair of concrete and pavement repairing materials.
The test results satisfied the required material performances, and presented a good mechanical and durability characteristics. In particularly,
the materials showed early development of compressive strength, flexural strength and bond strength at 3 and 4 hours after curing. SEM
photos were also taken to investigate the micro structures of the materials after chloride ion penetration test. |