14 BULLETIN 246, U. S. DEPARTMENT OF AGRICULTURE. 



the template to slide on, or the curbs may be made to serve as guides 

 where this is convenient. 



After the cushion is spread and uniformly " struck off " with the 

 template to a depth slightly in excess of that required, it should be 

 thoroughly compacted by rolling with a hand roller weighing from 

 300 to 400 pounds, and any depressions which form should be cor- 

 rected. This is necessary in order to secure uniform density and to 

 prevent unequal settlement of the surface. 



HANDLING AND LAYING THE BRICK. 



The brick may all be hauled and piled at convenient intervals 

 along the sides of the roadway before grading is begun, or, if more 

 convenient, they may be delivered as needed on the work. Hauling 

 over the finished pavement with wagons until it is complete and 

 opened to traffic should be avoided. If the brick are delivered on the 

 work as needed, they should be unloaded from the wagons outside of 

 the curb and carried to the pavers, either by hand or in wheelbar- 

 rows. Plank trackways should also be provided over the newly laid 

 pavement for the wheelbarrows when they are used. 



The brick should in all cases be uniformly piled by hand on the new 

 pavement conveniently close for the pavers, and each brick should be 

 so placed that the regular operation of picking it up and placing it in 

 the pavement will bring the best edge up. This method of handling 

 the brick requires somewhat more labor than the common method of 

 dumping them from wheelbarrows, but it eliminates to a great extent 

 the practice of picking out and turning over chipped or kiln-marked 

 brick after the pavement is laid. This is very objectionable on ac- 

 count of the disarrangement of the sand cushion, which is frequently 

 occasioned. 



The brick should be laid on edge and in uniform courses, running 

 at right angles to the line of the pavement, except at intersections; 

 and in order to " break the joints " each alternate course should begin 

 with a half brick. In laying the brick the pavers stand on the pave- 

 ment already laid and, beginning at the curb each time, carry across 

 as many courses together as they can conveniently reach. The courses 

 should be kept straight and close together, and, if necessary, each 

 block of eight or ten courses may be driven back by means of a light 

 sledge and a piece of straight timber approximately 2 by 4 inches by 

 5 or 6 feet long, though no heavy driving should be permitted. The 

 brick should also be laid close together in the courses. 



After the brick are laid the pavement should be carefully inspected, 

 for the purpose of detecting soft or otherwise defective brick. Mis- 

 shapen or broken brick may be detected by the eye alone, and the soft 

 brick by sprinkling the pavement with water. The soft brick appear 

 comparatively dry while the water is being applied and compara- 



