Super absorbent polymers to simulate self healing in ECC

Title: Super absorbent polymers to simulate self healing in ECC
Author(s): J.S. Kim, E. Schlangen
Paper category : conference
Book title: 2nd International Symposium on Service Life Design for Infrastructures
Editor(s): K. van Breugel, Guang Ye, Yong Yuan
Print-ISBN: 978-2-35158-096-7
e-ISBN: 978-2-35158-097-4
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 849 - 858
Total Pages: 10
Nb references: 7
Language: English

Abstract: The load-bearing capacity of structure can be violated by the degradation of concrete and reinforcement. Defects in materials may also lead to poor serviceability or inconvenience in the use of a structure. For instance, cracks in concrete structures may cause carbonation of concrete and corrosion of reinforcement.
Under certain conditions, the phenomenon of self-healing in concrete structures is well established. To find these conditions of self-healing is important to prolonging service life of concrete structure.
Even for buildings and bridges over land, many concrete structures always serve under frequently changing weather conditions, in particular, the humidity. For new materials like Engineered Cementitious Composites (ECC) investigation into the performance of specimen under frequent changing of humidity is necessary and of great importance for evaluating the durability. In the current paper, the experimental studies for the development of an ECC using Super Absorbent Polymers (SAP) are presented. The experimental results showed that ECC specimen included SAP’s performed comparably with reference ECC specimen. When specimens were under the action of wet dry cycling, the self healing properties of ECC specimen included SAP’s were much inferior to that of reference ECC specimen. It is therefore suggested that including SAP’s could contribute to self healing where wet dry cycling weather occurs.

Online publication: 2011-04-20
Publication type : full_text
Public price (Euros): 0.00