On the relationship between deteriorated level of ASR damaged concrete and lithium migration from acceleration lithium migration technique test

Wei Chien Wang, Chih Chien Liu, Chau Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This research is to study the effect of deteriorated level on the ions migration in inhibiting the concrete damaged by ASR using electrochemical technique. Cylindrical concrete specimens made by reactive sandstone with 10 cm diameter and 5 cm height were prepared at the ages of 7, 14, 28, 90, and 180 days curing in a 38°C and 100% R.H. storage environment. The accelerated lithium migration technique (ALMT) was performed using LiOH·H 2O and Ca(OH)2 as electrolytes for anode and cathode, respectively. 9 A/m2 current density was used to drive lithium ion into and remove sodium ion out of the concrete. The results show that the rates of ions migration increase with increasing the deteriorated level of specimen. Furthermore, a linear relationship exists between the non-steady state migration coefficient of Li+ and the deteriorated level of specimen.

Original languageEnglish
Title of host publicationAdvances in Structures
Pages3812-3819
Number of pages8
DOIs
StatePublished - 2011
Event2011 International Conference on Structures and Building Materials, ICSBM 2011 - Guangzhou, China
Duration: 7 Jan 20119 Jan 2011

Publication series

NameAdvanced Materials Research
Volume163-167
ISSN (Print)1022-6680

Conference

Conference2011 International Conference on Structures and Building Materials, ICSBM 2011
Country/TerritoryChina
CityGuangzhou
Period7/01/119/01/11

Keywords

  • ASR
  • Concrete
  • Electrochemical
  • Lithium
  • Migration

Fingerprint

Dive into the research topics of 'On the relationship between deteriorated level of ASR damaged concrete and lithium migration from acceleration lithium migration technique test'. Together they form a unique fingerprint.

Cite this