摘要: Tests were conducted using a ring-type specimen to simulate restrained shrinkage cracking. The effects of two type fibers (steel and polypropylene differing amounts (0.1 1.5% by volume); age concrete (2 hr or 4 days); length drying (up 6 weeks) under given environment (40% relative humidity 20 C (68 F)) studied. results satisfactorily compared with theoreticl model developed the authors.
concrete.org
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