Farm Buildings and Cottar/es, 

 Making Conckete. 



215 



Liyne Concrete {chiefly for Foundations). — We will suppose that 

 the position of the intended building is staked out, that the 

 trenches for the foundations are dug, and that the several materials 

 of which it is intended to make the concrete are upon the spot. 



Two mixing-boards are required, a useful size being about 

 12 feet by 7 feet ; but this will depend greatly upon the nature 

 and extent of the proposed building. They should be made of 

 3-inch planks firmly secured to cross sleepers, without sides, so 

 as to form a good firm and solid floor upon which to mix the 

 concrete (see Fig. 2). 



Fig. 2. — Mixing Boards, &c,, for making Concrete. 



The larger materials must be broken up to about the size of a 

 hen's eg^, or walnut, and deposited in heaps around the mixing- 

 boards, as shown in Fig. 2, conveniently within reach ; it will 

 be seen that a plank is laid from each heap to the board, and also 

 towards the building, so as to facilitate wheeling. The men 

 should now proceed to wheel on to the mixing-board sufficient 

 of the different materials at hand as can be conveniently turned 

 by four men ; two of the men would wheel the stuff on, while 

 the other two would spread it evenly, thus depositing the whole 

 in layers, as shown in Fig. 3. 



