Szeląg Maciej
Faculty of Civil Engineering and Architecture, Lublin University of Technology, 40 Nadbystrzycka Str., 20-618 Lublin, Poland.
Materials (Basel). 2018 Oct 10;11(10):1928. doi: 10.3390/ma11101928.
The paper evaluates the cracking patterns created on the surface of a microsilica-modified cement matrix, which has been subjected to exposure at elevated temperatures. To do this, image analysis techniques were used, and the structure of the cracks was described by the stereological parameters. Four series of specimens were tested and in two of them, microsilica was used as a 10% replacement for the cement content. Using the theory of dispersion systems, the factors affecting the cracks' characteristics were identified. Additionally, the development process of cracking patterns due to the thermal interaction was schematically modeled. In addition, the analysis of the local microstructure of the cement matrix was performed by means of a scanning electron microscope and energy dispersive x-ray spectroscopy.
本文评估了在高温下暴露的微硅粉改性水泥基体表面产生的裂缝模式。为此，采用了图像分析技术，并用体视学参数描述了裂缝的结构。测试了四个系列的试件，其中两个系列中，微硅粉用作水泥含量的10%替代物。利用分散体系理论，确定了影响裂缝特征的因素。此外，还对热相互作用导致的裂缝模式发展过程进行了示意性建模。另外，通过扫描电子显微镜和能量色散X射线光谱仪对水泥基体的局部微观结构进行了分析。
