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Computers and Concrete
  Volume 4, Number 6, December 2007 , pages 499-510
DOI: https://doi.org/10.12989/cac.2007.4.6.499
 


Study on durability of densified high-performance lightweight aggregate concrete
H. Y. Wang

 
Abstract
    The densified mixture design algorithm (DMDA) was employed to manufacture high-performance lightweight concrete (LWAC) using silt dredged from reservoirs in southern Taiwan. Dredged silt undergoing hydration and high-temperature sintering was made into a lightweight aggregate for concrete mixing. The workability and durability of the resulting concrete were examined. The LWAC made from dredged silt had high flowability, which implies good workability. Additionally, the LWAC also had good compressive strength and anti-corrosion properties, high surface electrical resistivity and ultrasonic pulse velocity as well as low chloride penetration, all of which are indicators of good durability.
 
Key Words
    densified mixture design algorithm; silt; lightweight aggregate; durability.
 
Address
H. Y. Wang; Department of Civil Engineering and Disaster Mitigation Technology, National Kaohsiung University of Applied Science, Kaohsiung, 807, Taiwan
 

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