Accelerated Calcite Precipitation (Acp) Method For Recycled Concrete Aggregate (Rca)
Keywords
Accelerated calcite precipitation; Calcite precipitation; Carbon dioxide; Drainage; French drain; Recycled concrete aggregate (RCA)
Abstract
Recycled concrete aggregate (RCA) is often used as a replacement of virgin aggregate in embankments, roadbed, asphalt and concrete pavements. The use of RCA in drainage systems as pipe backfill materials has not received a large attention due to clogging potential. Calcite precipitation is one of major causes of permittivity reduction in filter fabrics. The calcite formation is a long-term process; thus, a means to evaluate the potential of calcite precipitation in an accelerated manner is necessary. In this study, an accelerated calcite precipitation (ACP) procedure of RCA was developed, and its performance was evaluated. Two types of ACP methods were devised: short-term and long-term simulations. The long-term ACP procedure can be used to determine maximum lifetime calcite precipitation while the short-term ACP procedure can be used to evaluate the effect of test variables (e.g. aggregate type, fine content, etc.) on the calcite precipitation.
Publication Date
10-30-2016
Publication Title
Construction and Building Materials
Volume
125
Number of Pages
749-756
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1016/j.conbuildmat.2016.08.048
Copyright Status
Unknown
Socpus ID
84990062045 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/84990062045
STARS Citation
Nam, Boo Hyun; An, Jinwoo; and Youn, Heejung, "Accelerated Calcite Precipitation (Acp) Method For Recycled Concrete Aggregate (Rca)" (2016). Scopus Export 2015-2019. 3575.
https://stars.library.ucf.edu/scopus2015/3575