•iO BULLETIN 704, U. S. DEPARTMENT OF AGRICULTURE. 



INDEX OF MATERIALS AND USE. 



BRICK. Page. 



Br-1 . Foiir-inch vitrified paving brick 21 



Br-2. Tliree-iach vitrified paving briclc 23 



GRAVEL. 



RS-2. Bituminous surface treatment 6 



GBC-2. Coarse aggregate bituminous concrete wearing courses 17 



R-1. Filler for granite block pavement 25 



RC-2. Portland cement concrete base 14 



GW-1. Water-bound giavel road 16 



MINERAL FILLER. 



RBC-2. Bitimiinous concrete, coarse broken stone aggregate 9 



GBC-2. Bitimiinous concrete, coarse gravel aggregate 17 



RBC-3. Bituminous concrete, fine aggregate 10 



RBC-4. Sheet asphalt 11 



PORTLAND CEMENT. 



Ct-1 . All uses 20 



SAND. 



RBC-4. Binder course, sheet asphalt pavement U 



RBC-2. Bituminous concrete, coarse broken stone aggregate 9 



GBC-2. Bituminous concrete, coarse gravel aggregate 17 



Br-1. Cushion sand, brick pavement 21 



Br-2. Cushion sand, brick pavement 23 



R-1. Cushion sand, granite block pavement 25 



Br-1. Grouting sand, brick pavement 21 



Br-2. Grouting sand, brick pavement 23 



R-1. Grouting sand, granite block pavement 25 



RC-1. Portland cement concrete pavement 13 



RC-2. Portland cement concrete base 14 



RBC-4. Sheet asphalt wearing course 11 



SAND CLAY. 



Sd-1. Sand-clay or topsoil mixtures 19 



SLAG. 



SgW-2. Water-bound base '. 18 



STONE. 



RBC-4. Binder course, sheet asphalt pavement 11 



RBC-2. Bituminous concrete, coarse aggregate 9 



RBC-3. Bituminous concrete, fine aggregate 10 



RBC-1. Bituminous concrete, one size stone 8 



RS-1. Bituminous surface treatment, coarse stone 5 



RS-2. Bituminous surface treatment, fine stone 6 



RC-2. Portland cement concrete base 14 



RC-1. Portland cement concrete pavement 13 



R W-2. Water-bound base 5 



R W-1. Water-bound macadam 4 



STONE BLOCK. 



R-1. Granite block 25 



TOPSOIL. 



Sd-1. Topsoil or sand-clay mixtures '. 19 



TOTAL MINERAL AGGREGATE. 



RBC-4. Binder course, sheet asphalt pavement 11 



RBC-3. Bituminous concrete, fine aggregate 10 



ADDITIONAL COPIES 



OF THIS PUBLICATION MAY BE PROCURED FROM 



TUE SUPERINTENDENT OF DOCUMENTS 



GOVERNMENT PRINTING OFFICE 



■WASHINGTON, D. C, 



AT 



5 CENTS PER COPY 



