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采用体积测量和长度测量相结合的试验手段,对高性能水泥基材料的自收缩变形规律进行了分阶段、全过程的研究分析,研究了矿物掺合料的种类(粉煤灰和磨细矿渣)、掺入比以及细度对自收缩的影响。结合毛细管张力理论,探讨了粉煤灰和磨细矿渣对自收缩的影响机理。
By means of the combination of volumetric measurement and length measurement, the self-shrinking and deformation laws of high-performance cement-based materials were studied in stages and in all stages. The types of mineral admixtures (fly ash and ground slag ), Incorporation ratio and fineness on self-shrinkage. Based on the theory of capillary tension, the influence mechanism of fly ash and ground slag on self-shrinkage was discussed.