220 



On Concrete as a Building Material for 



will be drier and warmer than either tiles or stone. Concrete 

 also makes a good floor for barns, cow-houses, and sheds. 



Fig. 13. — Metliods of fixing joists in a Concrete Wall. 



Flrcr 



11 



Joist 



As concrete (if made of Portland cement and tolerably 

 fine broken material) is impervious to moisture, it is evident 

 that it will make both a drier and warmer house than one built 

 of brickwork or stone, both of which materials hold a great deal 

 of moisture. 



2. IFith the aid of a Patent Apparatus. — There are several 

 kinds of apparatus now before the public, the principal being 

 " Drake's " and " Tail's," which are equally good and simple, 

 their cost being also about the same. They are made chiefly 

 of iron ; the uprights are about 8 feet long, and together with 

 the plates forming the trenches, are inoved up higher as the work 

 proceeds. Iron uprights the whole height of a building would 

 be both heavy and expensive, and would not suit every case, 

 but wood uprights can be utilised as rafters for the roof, &c. 

 In " Tail's " there is but one set of angle uprights, as in Fig. 14, 

 which are bolted together ; but in " Drake's " the angles of the 

 building have two sets of angle uprights, as shown in Fig. 15. 



Figs. 14 and 15. — Plans illustrating Patent Apparatuses for Concrete 



Building. 



Fig. 14. 



Fig. 15. 



The method of building with either kind of apparatus is pre- 

 cisely the same as I have already described, and I should recom- 

 mend those who intend building largely with concrete, to purchase 

 or hire one in preference to the simpler and cheaper wood con- 

 trivance that I have described, and I therefore give the ad- 

 dresses of the proprietors : — 



J. Tall, 8, Lawson Street, Dover Road, London, S.E. 



