REINFORCED CONCRETE 91 



(e) A colored finish may be obtained by using naturally 

 colored aggregates, or by adding a mineral pigment of 

 any desired shade when mixing the concrete, as may 

 be determined by the Engineer. 



INSPECTION AND ERECTION 



382. Inspection. Inspection during construction shall be 

 made by competent inspectors employed by, and under the 

 supervision of, the Engineer, and shall cover the following : 



(a) The materials. 



(6) The correct construction and erection of the forms and 

 the supports. 



(c) The sizes, shapes', and arrangement of the reinforcement. 



(d) The proportioning, mixing, and placing of the concrete. 



(e) The strength of the concrete by tests upon standard test 



pieces made on the work. 

 (/) The protection of the work against frost, the sun and the 



weather generally. 

 (g) Whether the concrete is sufficiently hardened before the 



forms and supports are removed. 

 (h) Prevention of injury to any part of the structure by and 



after the removal of the forms and shores, 

 (i) Comparison of dimensions of all parts of the finished 



structure with the plans. 



383. Accepting Material or Work. If the inspector, through 

 an oversight or otherwise, has accepted material or work which 

 is defective or contrary to the specifications, the material or 

 work, no matter in what stage of completion, may be rejected 

 by the Engineer. 



384. Testing the Structure. Load test on any part of the 

 finished structure shall be made where, in the opinion of the 

 Engineer, there is a reasonable suspicion that the work has not 

 been properly performed, or that, through influences of some 

 kind, the strength has been impaired, and may be made in any 

 case. 



The test load applied shall not exceed that which will cause 

 a total stress in the reinforcement of three-fourths (f) of its 

 strength at the yield point, or more than twice the superimposed 

 oad. 



