【摘要】 利用分形方法研究粉煤灰与膨胀剂复合掺入到混凝土中对清水混凝土表面性能的影响。通过混凝土表面分形维数及表面平整度的研究,表明粉煤灰与膨胀剂的复合掺入对混凝土表面平整度和光泽度的改善效果是明显的;混凝土表面的分形维数一般在2.0～2.1之间,混凝土表面越粗糙,其分形维数也越大,分形维数越接近于2.0,混凝土表面越平整。更多还原

【Abstract】 In this paper, fractal analysis is used to study the influence of fly ash and expansion agent on the surface property of as-cast-finish concrete. The concrete trials with the index of the fractal dimension of the concrete surface reach a few important conclusions. It demonstrates that fly ash and expansion agent can improve the quality of the concrete surface greatly. The fractal dimension is between 2.0 and 2.1, and the concrete surface turn more plane as the fractal dimension approaches 2.0 .更多还原