302 0

Use of tabletting & coating accelerator for the prevention of early-frost of concrete in cold weather

Title
Use of tabletting & coating accelerator for the prevention of early-frost of concrete in cold weather
Author
유재석
Keywords
Tabletting; Accelerator; Polyvinyl alcohol (PVA); Pan-coating method; Workability; Early-frost
Issue Date
2013-03
Publisher
ELSEVIER SCIENCE BV
Citation
COLD REGIONS SCIENCE AND TECHNOLOGY, v. 87, Page. 1-5
Abstract
The use of accelerators prevents early-frost by developing strength of concrete in cold weather. However, no security of workability occurs because early hydration makes them to react rapidly. Thus, the accelerators via tabletting were coated with polyvinyl alcohol (PVA) of water-soluble polymer substance. The discussion includes the following: mortar setting time, workability by elapsed time, early strength to assure the development of adequate strength, and freezing-thawing resistance. As a result, workability can be secured as well as the development of early strength to prevent early-frost. The porosity and progress of hydration affecting the concrete were also found to be superior by analyzing the mercury intrusion porosimetry (MIP) and scanning electron microscopy (SEM) results. (C) 2012 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/20.500.11754/50478https://www.sciencedirect.com/science/article/pii/S0165232X12002261?via%3Dihub
ISSN
0165-232X
DOI
10.1016/j.coldregions.2012.11.005
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE