PART X 



REINFORCED CONCRETE 



GENERAL REQUIREMENTS 



324. Preparation of Plans. All plans shall be prepared, and 

 drawn to a scale sufficiently large so as to show clearly the quan- 

 tity and the exact position of all reinforcement ; the method of its 

 anchorage, where continuity or extra bonding are required; and 

 in short all details of parts affecting strength or appearance. 



325. Adherence to Plans. The contractor shall, during 

 construction, adhere strictly to the plans, as the strength of the 

 finished structure depends upon this; and the inspector shall 

 not be allowed to make any changes therein without the written 

 authority of the engineer. 



326. Placing of Forms: 



(a) The falsework and forms shall be substantial and unyield- 

 ing, properly braced or tied together by means of wire 

 or rods, and shall be so designed that the concrete will 

 conform to the proper dimensions and contours. 



(6) The timber used shall not be too dry, as a free absorption 

 of moisture will cause swelling and consequent deform- 

 ation of the concrete; it shall be planed smooth on 

 both edges and one side, shall be covered with a coating 

 of oil, soap, lime wash or other substance to prevent the 

 concrete from adhering to the surface, and shall have 

 all joints closed so as to prevent the leakage of grout. 



(c) In general the forms shall be simple of construction, easy 



of erection, maintenance, and removal, and they shall 

 frequently be inspected -during the progress of the work 

 that perfect alignment may be maintained. 



(d) All forms having been previously used shall be thoroughly 



cleansed and prepared before being used again. 



327. Metal Reinforcement. No metal reinforcement used 

 in concrete shall be painted, but shall be free from dirt, oil, or 



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