CONSTRUCTION OF WALKS AND DRIVES 59 



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CONSTRUCTION OF A CEMENT APPROACH 

 Fig. 59. — Showing the construction of a cement driveway approach 



satisfactory when subjected to the wear and tear of motor travel. 

 Dust prevention must also be considered. 



To strengthen the wearing surface of the macadam and reduce 

 the amount of dust, some kind of refined tar is best (Fig. 58). There 

 are many such preparations on the market today and each carries 

 with it proper specifications for applying. 



CEMENT SURFACING 



In some localities it is impossible to secure a stone with any 

 adhesive qualities. Where such a condition exists run a cement 

 grout, consisting of one part Portland cement to three parts of sharp 

 sand, over the surface. Over this place a thin layer of the breaker 

 dust and go over with a splint broom, thus roughening up the sur- 

 face to prevent skidding. This makes a good, practical driveway 

 that will stand a lot of traffic without unraveling or costing anything 

 for maintenance. 



CEMENT APPROACHES 



At the point where the drive intersects the highway it is advis- 

 able to pave the surface from the outside edge of the gutter to the 

 property line (Fig. 59). It is necessary, usually, to increase the 

 drive incline at this point to meet the gutter grade, and if macadam 

 is used there is constant erosion. The paved surface prevents this 

 and affords a hard surface for pedestrians. Such an approach should 



