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- W2046945998 abstract "AbstractThis paper presents the effect of geometrically similar specimen size on the mechanical properties of cement-based foams. The experimental study also investigates fracture-mechanical parameters under flexural impact. A preformed foam was employed to prepare the specimens using a synthetic foaming agent that was known to achieve a stable bubble structure. The cement-based foams were prepared to a cast density of 475 kg/m3 and were examined under compression and flexure. Along with a plain unreinforced mix, polypropylene fiber at a volumetric fraction of 0.2% was used to study the effect of microfiber reinforcement. The tested specimens scaled between one to four times in dimension. Parameters associated with their dynamic-fracture mechanics were evaluated under flexure with the help of a drop-weight impact tester equipped with a high speed imaging system. Bažant’s size effect model and the multifractal scaling model were employed to describe the size effect. It was seen that when subjected to comp..." @default.
- W2046945998 created "2016-06-24" @default.
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- W2046945998 date "2014-01-01" @default.
- W2046945998 modified "2023-09-26" @default.
- W2046945998 title "Specimen Size Effects and Dynamic Fracture Toughness of Cement-Based Foams" @default.
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- W2046945998 doi "https://doi.org/10.1061/(asce)mt.1943-5533.0000784" @default.
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