碳化减少碳化区和未碳化区孔径和孔隙率的同时也影响混凝土质量、强度和碱度等其它性能。
Carbonation reduces the pore size distribution and porosity of carbonated and non-carbonated part, and affects the concrete weight, strength, alkalinity et al.
高速重轨钢的冶炼可以在LF精炼过程中采用较高的炉渣碱度，而在RH精炼过程中，应适当降低炉渣碱度和减少精炼时间。
During the high rate heavy rail steel smelting, the upper basicity slag can be used during the LF refining, but it reduces suitable basicity of slag and refining time during the RH refining.
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