Liquid nitrogen frozen cementitious substance and its opportunity programs: Influenced by refrigeration field... The stream of cement paste is influential on the stability of air bubbles during the new paste. In case the circulation is simply too very low, not ample air is usually entrained throughout mixing, whereas a paste with quite higher flow

This get the job done employs X-ray computed micro tomography (XCT) to analyze the part on the critical degree of saturation (DOS) and air void technique on the crack propagation of portland cement mortar subjected to freeze-thaw cycles. Three-dimensional imaging in advance of and right after freezing let quantitative measurements on The situation

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