Novel Cement-based Composites under Low Pressure and Microwave Energy
978-620-0-43450-0
6200434506
164
2019-10-02
62.53 $
eng
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In this study, cementitious materials (here defined as a high-performance cement paste produced by mixing Type 1 Portland cement with an effective amount of water) were manufactured in accelerated conditions using microwave-assisted low-pressure processing (i.e., accelerated curing). Based on the concept that the hydration reaction of cementitious materials comprises three main periods—a dormant period, an acceleration period, and a deceleration period—process parameters were determined for the most effective period (acceleration) for producing paste via microwave processing. The time-dependent dielectric characteristics of the cementitious paste and the water–cement ratio by mass influenced the temperature, i.e., caused it to increase, and the properties of the microwave-cured paste.
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Tecnologia
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