This paper reports the absorption capacity of super-absorbent polymer (SAP) in water and cement pore solution. This was considered for the free water requirement for self-desiccation when the amount of internal water reduced. The physical state of particles selected from a super-absorbent polymer sample with a particle size distribution 150 μm (SAP-I) and less than 850 μm (SAP-II) monomers acrylic acid were tested at SAP 0.1g contents and time in minute 0.5, 1, 3, 5, 10, 30, and 60. The test was determined by using tea bag test method. As a result, the size of the polymers particles has a significant effect on the absorption kinetics of these polyacrylate-based polymers.

Abstract
 1. Introduction
 2. Material and Test procedure
 3. Results
 4. Conclusions
 References

• 아둔 데제네(충북대학교 토목공학과 대학원 구조공학전공) | Adune, Dejene
• 홍기남(충북대학교 토목공학과) | Hong, Ki-Nam 교신저자
• 이수규(충북대학교 토목공학과) | Lee, Sugyu 교신저자