Arizona republican., 1914-10-23

1 The life of an asphalt pavement ought to be said to be the life of the asphalt and inasmuch as the voids in Bitulithic are nearly eliminated and the pave ment made practically air-tight, there i is no way for the Bitulithic cement to 1 loose it's life except from the surface, which is of course but d slow means, ! and in addition as the Bitulithic ce- ncnt does not give the stability to the Bitulithic pavement, it is possible to use a bitumen of higher penetration i (softer) having more life than that which can be used in sheet asphalt. 1 Thus we have a pavement, when properly laid, which in point of dur ability is the equal if not the supe Bior to the other types of standard pavement. The stone takes the wear s After the surface has been thor oughly compressed by rolling it is sealed with a thin coating of Warren Brothers flush coat composition Ga , specially treated bitumen), upon which is spread a layer of fine stone chips, which are rolled into the sur face, giving the same a tractive quail ! ty not equalled in any other pave ment--an absolutely non-slip, non skid pavement.
 You will note that several times ! during the discussion I have qualified both this and other pavements by adding the words, when properly | laid" To my mind here is possibly the 1 greatest single factor in the worth of l the Bitulithic pavement. Warren 1 Brothers Company are not in the contracting business; they lay prac- | tically no pavement. Their one chan mel for gain then must be their income from the patents on their inventions. { Since this is so their one chance of | continued gain is the continued popu- larity of their policy of exact con- struction. Every contract for bitu- lithic pavement is laid under the direct supervision of one or more of their , corps of paving experts, whose whole province is to be absolutely certain that the correct material, in the cor rect proportions, are correctly mixed, and correctly laid on a correctly constructed base. Their expert takes samples each day which are forward ed to the Warren Brothers Com panies' laboratories, either in Cam bridge, Mass, or Portland, Ore, there to be additionally tested both for eXactness in mix and quality of stone and material used. The expert is man whose only business is the pro- per construction of Bitulithic pave ! what should be and what should not be done, and he is a man who has been selected by Warren Brothers Company on account of this ability. l submit that it is not possible for contractor to lay this pavement other than as it should be laid. All stan dard pavements are good pavements, when properly laid, which is ire uuently not the case. Bitulithic IS always a good pavement well laid. MT. F. L. Pimm of Boston is the eX- pert in charge of the work in Phoe- nix at this time. NIT. Pimm is pre- sent today and will gladly answer any questions any one may care to ask. He will pass around numoer of samples of different pavement
 and samples showing each of the sizes of rock used in Bitulithic, and also samples of the rock dust an'
 Bitulitric cement used.
 To again refer to Warren Brothers
 Company, pavements of lighter con- struction for lighter traffic conditions, I set forth the reason for their sue cess, wherever they have been laid, to be on account of this stout in- sistence of Warren Brothers Com pany. that none of their pavement!
 be laid except under traffic and other conditions that will permit them to endorse the suggested pavement for the proposed conditions, it of course to be constructed under their super vision.
 Where any pavement of lighter type than standard Bitulithic is to be used the Warren Brothers Con- panv requires q complete report of the conditions obtaining on that street, the amount of and the char acter of the traffic to be expected, the nature of the soil, etc. so that they l may hIlDW III iuN eilltt tlloI ti4N P'N'N
 ment proposed is suitable to the con ditions.
 As a summary: Bitulithic is stan dard pavement, whose average initial cost is less than any of the other standard pavements, now and then equalled in price by sheet asphalt or brick, but only when local conditions have been favorable to these two types; second whose resiliency-an important factor when we con sder the value of stock which is lost each year, it's legs hay-
 ing gone bad on account of hard pavements-is equalled only by wood blocks and sheet asphalt; third, whose noiselessness is equalled only by wood block and sheet asphalt; fourth whose cleanliness and ease of cleaning "a point to be considered not only from the standpoint of health, but in connection with the immense sums which may be saved in the street cleaning department of the city-is equalled but by sheet asphalt; fifth,
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