Chapter 26 Gradation Design of Sand and Gravel Filters
26 6 210 vi NEH October 1994 Chapter 26 Gradation Design of Sand and Gravel Filters Part 633 National Engineering Handbook Table 26 13 Data for designed filter band 26 29 Table 26 14 Design filter band data for example 26 6 soil 26 34 Table 26B 1 Selected standard aggregate gradations 26 41 Figures Figure 26 1 Grain size distribution curve for fine clay base soil 26 9