求翻译：论文从混凝土碳化机理出发，分析了冻融循环对混凝土孔隙以及气体扩散的影响。根据Papadakis建立的碳化反应速率与可碳化物质浓度之间的关系，采用数值计算方法研究了碳化-冻融耦合作用下混凝土孔隙率及pH值的变化规律。是什么意思？

The paper analyzed the impact of the freeze-thaw cycles the concrete pores and gas diffusion from the mechanism of carbonation of concrete. Carbonation reaction rate papadakis to establish the relationship between the concentration of carbonized material, the use of numerical methods to study the ca

From concrete the carbon paper on the analysis, the freeze-thaw cycles, as well as concrete pore gas diffusion effects. In accordance with the established Papadakis carbon reaction rates and quality carbide can be the relationship between concentration and numerical computing methods for studying th

The paper embarked from the concrete carbonization mechanism, has analyzed the thaw-freeze cycle to the coagulation soil pores as well as the gas diffusion influence.With may carbonize between the material concentration according to the Papadakis establishment carbonized response speed the relations

Proceed from the concrete carbonization mechanism of papers, analysis of the freeze-thaw cycle on porosity of concrete and effect of gaseous diffusion. Established by Papadakis carbonation reaction rate and the relationship between concentration of carbonizable substances, using carbide-freeze-thaw

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