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Evaluation of Shrinkage Properties Based on Mock-Up Testin High Performance Concrete  

Han, Cheon-Goo (청주대 건축공학부)
Kang, Su-Tae (한국건설기술연구원 구조연구부)
Koh, Kyung-Taek (한국건설기술연구원 구조연구부)
Hann, Chang-Pyung (청주대학교 대학원)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.10, no.5, 2006 , pp. 106-114 More about this Journal
Abstract
This paper investigates the fundamental properties and shrinkage characteristics of low shrinkage high performance concrete(LSHPC), using mock-up specimens. According to the test results, the most suitable mix proportions of LSHPC need a higher dosage of SP agent and AE agent, in order to obtain the target of slump flow and air content. This is due to reduce fluidity and air content respectively. It also presented earlier setting time than control concrete by 6 hours and exhibited compressive strength of 60MPa at age 28 days. Autogenous shrinkage of LSHPC was the half of the value of control concrete. Drying shrinkage of center section of LSHPC showed similar tendency with autogenous shrinkage, because of no internal moisture movement, while surface section had larger drying shrinkage. The specimen with embedded reinforcing bar had smaller deformation owing to confinement of reinforcing bar.
Keywords
High Performance Concrete; Properties of Shrinkage; Mock-Up Specimen;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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