The study aims to understand the strength improvement and microstructural behavior of ultra-fine fly ash particles through synthesis and characterization techniques by analyzing the fly ash mortar and masonry prism. The process of grinding alters the particle size and specific surface area but not shown any variation in chemical composition are concluded from the microstructural analysis. The multiphase crystalline structures were found through the X-Ray Diffraction. From XRD, a pattern was incorporated to measure the micro-cracks size decrease and the strain was not obtained for a lattice. The reading shows the good amplification in the use of ultra-fine fly ash blended cement mortar associated with raw fly ash. The ultra-fine fly ash masonry block shows higher compressive strength, higher resistance to shear, higher bonding between two bricks compare to conventional masonry blocks. Overall, investigations show that additional use of 45% ultra-fine fly ash in construction applications without compromising the quality.

本研究旨在通过分析粉煤灰砂浆和砖石棱镜，通过合成和表征技术来了解超细粉煤灰颗粒的强度提高和微观结构行为。研磨过程改变了粒径和比表面积，但未从微观结构分析中得出化学成分的任何变化。通过X射线衍射发现了多相晶体结构。从XRD，并入图案以测量微裂纹尺寸的减小，并且未获得晶格的应变。读数显示与原粉煤灰一起使用的超细粉煤灰混合水泥砂浆的使用效果良好。超细粉煤灰砌块显示出更高的抗压强度，更高的抗剪强度，与传统的砖石砌块相比，两块砖之间的粘结性更高。总体而言，调查表明，在建筑应用中额外使用45％的超细粉煤灰不会影响质量。