Proj
J-GLOBAL ID:200904026025145036  Research Project code:9800008499 Update date:Mar. 21, 2001

Study on inhibitation of alkali-aggregate reaction by using tuff-containing zeolite

コンクリート構造物におけるアルカリ骨材反応抑制対策
Study period:1990 - 1992
Organization (1):
Investigating Researcher (4):
Research overview:
In order to inhibitate the alkali-aggregate reaction, the addtion of the zeolite to the aggregates were studied. The expansion ratio with respect to andesite(100%), andesite(95%)-zeolite(5%) and andesite(80-90%)-zeolite(10-20%) aggregates indicated 0.250, 0.022 and 0.010%, respectively. We conclude that the expansion of the concrete was inhibitated by the holding of the Na cation of the zeolite.
Keywords (6):
alkali-aggregate reaction ,  concrete ,  zeolite ,  cation exchange capacity ,  tuff ,  prevention of expansion
Research program: Ordinary Research
Research budget: 1990: \2,000,000

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