24 BULLETIN 249, U. S. DEPARTMENT OF AGRICTJLTTJBE. 



equipment for a rather large project in a community where few other 

 concrete roads are likely to be constructed. 



The equipment necessary for handling and hauling the materials 

 frequently represents a much greater outlay of capital than all other 

 expenditures combined, but, as has already been pointed out in dis- 

 cussing the handling of materials, the conditions affecting this fea- 

 ture of the work are subject to great variation. A general discussion 

 as to the cost of this part of the equipment, therefore, would usually 

 be of small value in connection with any particular project and will 

 not be undertaken. 



The equipment necessary for doing the rough grading in connec- 

 tion with concrete road work is not essentially different from that 

 required for grading other types of roads. Since the amount of cap- 

 ital necessary to provide grading equipment to suit various sets of 

 conditions is familiar knowledge to practically all road engineers 

 and contractors, this feature will not be discussed here. 



The capital required to provide equipment for preparing the sub- 

 grade and mixing and placing the concrete depends on the rate at 

 which it is purposed to carry on the work. The lists given below 

 show the approximate cost of outfits using either a 2-bag or a 3-bag 

 mixer. 



Outfit A T o. 1 (2-oag mixer). 



1 rooter plow $50 



1 road grader 300 



1 heavy 4-horse plow^ 30 



Shovels, picks, and other small tools 75 



1 10-ton macadam-type road roller 2, 500 



1,800 feet of steel forms, complete with stakes, etc 200 



1 pump and engine capable of delivering at least 1.500 gal- 

 lons of water per hour 175 



10.000 feet of 2-inch wrought-iron water pipe, with valves 



every 200 feet 950 



400 feet of rubber hose, with couplings 80 



12 wheelbarrows GO 



1 concrete mixer, with skip and distributing device 1, 600 



Strike board, tamper, mortar hoes, sledges, etc 100 



Total G, 120 



Outfit No. 2 (8-bag mixer). 



1 rooter plow $50 



1 road grader 300 



1 heavy 4-horse plow 30 



Shovels, picks, and other small tools 100 



1 10-ton macadam-type road roller 2,500 



3,000 feet of steel forms, complete with stakes, etc 325 



1 pump and engine capable <>f delivering ;it least 2.500 gal- 

 lons of water per hour 300 



10,000 feet of 2-inch wrought-iron water pipe with valves 



every 200 feet 950 



