Effects of microstructure on compressive strength of silica sand-enhanced oil well cement at a wide temperature range.

ABSTRACT: The influence of microstructure of silica-enhanced cement on the mechanical performance of cement is difficult to describe. In this study, we used the scanning electron microscope and image processing method to investigate the relationship between the complicity of cement microstructure and compressive strength under various temperatures and curing times. Fractal dimension was applied to describe the complicity of silica-enhanced cement. The relationships among compressive strength, fractal dimension, temperature, curing time and pore structure of cement were identified. The results show that curing time directly controls the complicity of microstructure of silica-enhanced cement and compressive strength by altering the pore orientation and macropore ratio in silica-enhanced cement. The cu

SUBMITTER: Chen Z 

PROVIDER: S-EPMC9363988 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature