Computers and Concrete

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Study on durability of densified high-performance lightweight aggregate concrete

  • Wang, H.Y. (Department of Civil Engineering and Disaster Mitigation Technology, National Kaohsiung University of Applied Science)
  • Received : 2007.06.07
  • Accepted : 2007.11.30
  • Published : 2007.12.25
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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.

Keywords

Acknowledgement

Supported by : National Science Council

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