95 



Centering can not be furnished and removed for lesa 

 than $4 per yd., and should never exceed $6 per cu. yd. 



COST OF CONCRETE. 



The cost of concrete depends upon the character of the 

 construction and conditions, and not so much on the first 

 cost of material. 



When placed in large masses, when form work is a 

 small item, it can be placed from $4 to $7. Sewers and 

 arches, when centering is required, $7 to $14 per cu. yd. 

 Thin walls under 8 in., $10 to $20, depending on char- 

 acter of construction and finish. 



It always pays to obtain the best skilled labor possible, 

 as then the minimum prices are obtainable. Quotations 

 of cement should be obtained, cost of freight and hauling 

 determined, and then, by multiplying the cost by the 

 following constants the price per cu. yd. can be de- 

 termined: 



In order to give a more general Idea of what the var- 

 ious items cost in preparing, wheeling, mixing and de- 

 positing concrete, the following brief is given from Gil- 

 lette's Hand-book of Cost Data: 



Sand can be washed, proceeding continuously, at 5c a 

 cu. yd. for labor, lOc per yd. for shoveling up the sand and 

 any extra hauling. If the water is pumped, add lOc more 

 per cu. yd. for coal and wages. 



A man can load 18 to 20 cu. yd. of broken stone into a 

 wheel barrow in 10 hours If a plank flooring is used as 

 a dumping platform. If the materials are dumped on the 

 ground, 12 to 14 cu. yd. From hopper-bottom cars. 14 

 cu. yd. per day can be unloaded by 1 man. 20 cu. yd. from 

 flat cars. A good man can load 20 cu. yd. into a barrow; 



