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The effect of the calcium leaching on the microstructure and rupture strength of CA mortar

机译：钙浸出对Ca灰浆的微观结构和破裂强度的影响

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This paper deals with the effect of calcium leaching on the microstructure and rupture strength of cement asphalt (CA) mortar. It is conducted by an accelerated experiment method with species obtained from construction site. Results show that the leaching process mainly contains a total leaching of CaOH_2 (CH) and some other cement hydrations. The leaching is proved by the "portlandite dissolution front" on the cross-section of species using a reagent of phenolphthalein. As time goes, the species are continually leached, and then the loss of mass and porosity ratio are obviously increased. Fick's law can describe the relationship between leaching depth and time very well. The loss of mass and increasing of porosity ratio respond to the shrinking of mechanical properties of CA mortar.
机译：本文涉及钙浸出对水泥沥青（CA）砂浆微观结构和破裂强度的影响。 它是由加速实验方法进行，具有从施工现场获得的物种进行。 结果表明，浸出过程主要含有CAOH_2（CH）和其他一些水泥水合的总浸出。 使用酚酞试剂通过酚酞试剂对物种横截面的“波特兰溶解前沿”证明了浸出。 随着时间的推移，物种不断浸出，然后损失质量和孔隙率比明显增加。 Fick的法律可以描述浸出深度和时间之间的关系。 损伤的质量和孔隙率比的增加响应了Ca砂浆机械性能的缩收。

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