Abstract
The Institute for Materials Used in Construction at the University of Stuttgart initiated a research program to examine the super-adsorbent polymers (SAPs) influence on the freeze-thaw resistance of concrete with added SAPs. These polymers absorb large quantities of water immediately after their addition to the fresh concrete mix, causing an increase in paste density. This water will be released gradually in the course of hydration whereas spherical voids will remain inside the paste. Due to this mechanism, the polymers can act as internal water sources, increasing the degree of hydration and reducing shrinkage and an air-entraining agents (AEA), increasing the freeze-thaw resistance and the durability of concrete. These polymers can extract water from the fresh concrete concrete mix, causing a stiffening of the paste accompanied by a reduction in capillary porosity.
| Translated title of the contribution | Potentials for the use of super-absorbent polymers in concrete construction - From overview to detail |
|---|---|
| Original language | German |
| Pages | 20-21 |
| Number of pages | 2 |
| Volume | 74 |
| No | 2 |
| Specialist publication | Betonwerk und Fertigteil-Technik/Concrete Precasting Plant and Technology |
| State | Published - 2008 |
| Externally published | Yes |