Effect of Solidification Mechanism of Nanometer Ore Powder Cement Soil on the Late Formation of Composite Foundation

Abstract

The purpose of this paper is to study the influence of the solidification mechanism of nanometer ore powder cement soil on the late formation of composite foundation. Taking nanometer ore powder cement soil as the research object, six different gradients of nanometer powder powder are added, and each gradient has 3 parallel tests. First, use the orthogonal test method to statistically analyze the strength of the cement soil at different periods and different amounts of nano-powder powder, then use the pozzolanic reaction and XDR method to fit and analyze the solidification mechanism data of the nano-powder powder cement soil, and finally add It was analyzed whether the cement soil reinforced with nanometer ore powder and the original foundation soil can coordinate deformation and co-bearing to analyze the influence of composite foundation formation. Experimental data shows that with the increase in the amount of nanometer ore powder, the strength increases substantially linearly. When the time is 25d, = 30%, the maximum strength can reach 4.28 MPa, which is 3.72 times the strength of ordinary cement soil at the same age. After adding the nanometer ore powder, a large amount of calcium ions are consumed through the volcanic ash reaction. From the XDR data analysis, the particle diffraction intensity of the cement stone added with the nanometer ore powder is reduced by 25% compared with that of the ordinary cement stone.