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Correlation between Channel-Flow Test Results and Rheological Properties of Freshly Mixed Mortar

굳지 않은 모르타르의 채널 플로와 레올로지 특성의 상관관계

  • Shin, Tae Yong (School of Urban and Environmental Engineering, UNIST) ;
  • Lee, Jin Hyun (School of Urban and Environmental Engineering, UNIST) ;
  • Kim, Jae Hong (School of Urban and Environmental Engineering, UNIST) ;
  • Kim, Myeong Kyu (Department of Mechanical Engineering, Gyeongnam National University of Science and Technology)
  • 신태용 (울산과학기술원 도시환경공학부) ;
  • 이진현 (울산과학기술원 도시환경공학부) ;
  • 김재홍 (울산과학기술원 도시환경공학부) ;
  • 김명규 (경남과학기술대학교 기계공학과)
  • Received : 2016.06.17
  • Accepted : 2016.07.07
  • Published : 2016.07.31

Abstract

The workability of mortar determines its construction performance in a structure showing its designed resistance to external loads. Measuring the rheological properties of mortar is one way of quantifying its workability, but its field-applications are limited due to economical and spatial issues. The robustness of the slump flow test allows its use for evaluating the workability of mortar, even though it is a rather qualitative test method. This paper proposes a channel flow test and develops a correlation between its result and the rheological properties of mortar. The volume-of-fluid simulation for the channel flow test was accomplished, and a numerical database for the correlation was composed. A correlation model to estimate the rheological properties of mortar using the results of the channel flow test as inputs is proposed.

Acknowledgement

Supported by : 경남과학기술대학교

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