Autogenous Shrinkage of Concrete with Super-Absorbent Polymer

A cracking viewer is used to illustrate cement paste's prewetted super-absorbent polymer (SAP) particles' water-release process. Many pores are produced in the paste structure, since SAP-entrained water is found to be almost exhausted after seven days. The authors discuss how entrained water and SAP dosages affect compressive strength, autogenous shrinkage (AS), and internal relative humidity (IRH) of concrete. That SAP incorporation obviously mitigates AS at an early age and delays decline of IRH is indicated in results; however, it is also shown to negatively influence cement paste pore structure. Higher SAP or entrained water content thus decreases compressive strength of concrete.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846872
• Authors:
  • Wang, Fazhou
  • Zhou, Yufei
  • Peng, Bo
  • Liu, Zhichao
  • Hu, Shuguang
• Publication Date: 2009

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 123-127
• Serial:
  • ACI Materials Journal
  • Volume: 106
  • Issue Number: 2
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-325X
  • Serial URL: https://www.concrete.org/publications/acimaterialsjournal.aspx

Subject/Index Terms

• TRT Terms: Absorbents; Cement paste; Compressive strength; Concrete; Plastics; Water
• Uncontrolled Terms: Autogenous shrinkage; Relative humidity
• Subject Areas: Highways; Materials; I32: Concrete; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 01126363
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 13 2009 2:59PM