• Title/Summary/Keyword: 콘크리트 포장 시멘트

Search Result 143, Processing Time 0.022 seconds

Strength Development and Permeability of Latex-Modified Concrete with Rapid-Setting Cement (초속경시멘트를 이용한 라텍스개질 콘크리트의 강도 및 투수특성)

  • 윤경구;홍창우;이주형;최상릉
    • Journal of the Korea Concrete Institute
    • /
    • v.14 no.3
    • /
    • pp.299-306
    • /
    • 2002

  • The purpose of this research was to develop a rapid setting cement latex modified concrete (RSLMC) for bridge deck repairing and overlaying. The main experimental variables were latex contents, antifoamer contents and water-cement ratioes. The workability, strength development and permeability were measured as responses. The results showed that latex content increased the slump and reduced the unit water required for same workability. The air contents were measured as 8.0∼9.0％ and 2.0∼3.0％ without antifoamer and with 1.6∼3.2％ of antifoamer, respectively. This resulted in the increment of compressive strength development by 10∼20 ％. The flexural strength of RSLMC increased greatly as the latex content increased, but not in compressive strength. The compressive strength and flexural strength developed enough for opening the overlayed RSLMC to the traffic after 3 hours of RSLMC placement. The permeability of RSLMC was evaluated as negligible due to its very low charge passed. Thus, RSLMC could be used at repairing or overlaying the concrete bridge deck at fast-track job sites.

  • https://doi.org/10.4334/JKCI.2002.14.3.299 인용 PDF KSCI