Arizona republican., 1913-08-23

 lN perhaps better cement than to practically
 any other of the wel-known building materials It is expert manufacturers of cement to see that the product turned out of their plants IS up to spec fcation in every way and hence the work ot the testers chemist is important that of any other depart men in the producton This general classification plies to the local manufacture of cement by the Arizona Portland Cement and is carried to an exact point equalled by few manufacturers in the country
 When the company was organized to promote the Ar the material for the basic formation of the finished product The limestone found ln an immense deposit chased from the reclamation service after the coe0n of the Roosevelt dam but the most important part in the decision whether the investment was wise one or not whether good cement could be made
 The various materials taken by expert chelnss treated and found to be correct for the manufacture o the best grade. The next step the Organlzalon ot the company and the expenditure of approXmatey 9zOOooo o a plant alone.
 Upon the completion of the second grinding process, after finished product, it has yet to go through the really important stage the testing stage As in assaving merely a sample from the is taken. A sample is taken hour and the day run IS averaged
 There are several tests through which the goes before it is the open market. The tensile strength of each of must be proven to fine Each run if imperfect has treated until it is perect At every the manufacture the chemst busy experimenting the mix and seeing by chemical anal ysis the proper ingredients and i'll the proper pro pOrOr going into the k1ns.
 the final grinding is completed sample IS taken laboratory for the final tests the most important Of a be proven that the cement, which will shortly go market has tensile strength under any cond equal to and above the requirements of standard
 
 A sample is taken moistened and placed in mold and made what is known brickette or i'll pan cake flat shape of these tested The acid test is one test another and the weight test still an The cement has to make certain qualifications m each test before it approved and sent out of the ml to the trade.
 chemist works with scales commonly used Tn the weighing of gold Exact figures necessary Tn deter mining tensile strength of the product Some of the samples watched for long time six months and satisfaction of the samples are ched long a period An automatic the wonders of the laboratory this machine brickette is placed and by manipulation of shot, weight the breaking strength IS shown The specifications prescribed the minimum breaking at hundred pounds The of samples taken at the Arizona plant usually go between hundred and seven hundred and fifty pounds before they broken.
 Another of testing department is to deter m what time the cement will set This figure IS communicated to the wor1men in any particular job in order any possibility of the getting bad and imperfect in walls other construction work
 the is tested and ready for sale. An order is received by the sales department and comnun cated the storage house the plant 1t IS placed on board the which directly alongside of the house. and their destination Before they how sample of the shipment again taken and placed among the files of the company for future in the building of construction into which the particular shipment goes is found faulty.
 With this step completed, the cement, from the wet process of the Arizona Portland Cement company market, ready go into the many kinds of sruction work progress contemplated and dreamed of in the Salt River valley and in the big and undeveoped state of Arizona.