Development of Joint Treatment Agent to Improve Quality and Productivity
By H. Nemoto, K. Oda, Y. Goryozono and K. Yukita
Concrete Journal, Vol.61, No.8, Aug. 2023
- Synopsis
- The quality of joint treatment greatly affects the performance and durability of structures. Conventional joint treatment agents have the issue of spray timing variability and uneven spraying, resulting in variability of treatment effectiveness. To address this issue, we have developed a joint treatment agent that enables stable treatment effectiveness by being sprayable immediately after construction and prevents uneven spraying through improved visibility after spraying, resulting in higher quality of joints. Furthermore, the developed joint treatment agent shortens the waiting time until spraying and enables joint treatment even with days off in between, contributing to increased productivity. This paper describes the joint treatment mechanism and the development process of the joint treatment agent, and introduces examples of application to actual construction.
- Keywords:
- Joint treatment agent, Alkali thickening agent, Foam spray, Visibility improvement, Retarder, Quality improvement, Productivity improvement
