粉煤灰是一种良好的填筑材料,具有密度小、耐压力高、材料易得、施工方便等优点。某住宅楼用其代土填筑房心,共节约土2000多立方米,节省购土费1万多元,减轻地基土荷载10kN/~2,为电厂腾出灰场场地。为了保证粉煤灰填筑工程的质量,应该选择适当的施工机具、施工方法。粉煤灰填筑以机械碾压效果最好,但—般建筑的房间面积 Fly ash is a good filling material, with the advantages of small density, high pressure resistance, easy access to materials, and easy construction. A residential building uses its landfill to fill the heart of the house, saving a total of more than 2,000 cubic meters of soil, saving more than 10,000 yuan in purchase of land, reducing the load on the foundation soil 10kN/~2, freeing up ash field sites for the power plant. In order to ensure the quality of the fly ash filling project, appropriate construction equipment and construction methods should be selected. Fly ash is best filled with mechanical rolling, but the room size of a typical building