Show what Is when the street paving contractors began the process of 0 putting the topping onto the concrete base along main street not a few jesting remarks were made relative to the evolution the street building had made from dirt to to concrete and back to again and it is reported that one good citizen even went so tar ar as to declare that brigham city is getting a job the only difference between the first that was put down on main street and the present application being the cost but lying deep underneath the humorous surface which these remarks indicate is the conviction that brigham city is at last getting a job of street construction th that at will endure as long as the memory of 0 man run eth and no one has yet had the temerity to stand forth and declare that the municipality made a mistake in selecting the type tor for her street paving the truck loads of material that come spinning along the highway to the place where the workmen art an I 1 waiting to receive them rather give the bystander the notion that the material is just a mixture of rock sand and tar and the process is accomplish ed in a simple manner that is about as far from the facts however as it could be it is true the mixture Is a combination of gravel sand and asphalt but the p process process of mixing is anything but simple the writer paid a visit to the hot plant on saturday morning and was shown 0 over ver the premises and had the complete process explained by mr air E 11 who is the representative of warren bros the firm which holds the patent on the manufacture of uli thic and mr air IV V murdock foreman of 0 the plant for gibbons reed need z mr conducted us to his laboratory chich is a frame building standing off from the main plant a few rod s where he does all his sampling and testing ot of the material ile he explained that each hopper of mixture that is dumped into the trucks weighs lbs ibs and Is composed of the proper amount of sand crushed rock or gravel and bitumen A test is made I 1 of the mixture every hour to see that I 1 the proper proportion of 0 ingredients is used and this is accomplished by i means ot of a series of 0 screens which are graded from the finest anest mesh up to holes large enough to accommodate a small egg mr air stated that I 1 of the total amount of each batch of mixture a certain per cent of it must pass through the finest screen or else the mixture Is not perfect perte ct in other words the proper mixture of able must contain a certain per cent dust to make it bind and set up perfectly the aba sand pj and gravel is elevated into a big drying drum where it i is ihor thoroughly heated and dried and then elevated into tho the screening and weighing tower where material is segregate ed into respective trades boch bin being connected with the mixing hopper and each bin eing being b equipped with a set of scales which are set and the beams are locked in a case so that the weights cannot be tampered with except by the expert in charge each grade ot of mixture re is weighed so that the proper proportions of 0 sand gravel and bitumen are used and the whole is mixed until evary every particle ot of sand and gravel is thoroughly coated by the boiling hot Iiii bitumen umen and then lt it Is permitted to run through through the hopper into the truck below A truck load oi of contains 7 batches of the hot mixture the representative of the manufacturers rs of bitumen makes a daily report to the companas comp anys head chemist and sends samples of the mixture which Is thoroughly tested and report made back to this point so that a careful check is kept on everything the load from which the sample is taken is recorded and the place where it is dumped on the street is kept track mat at any time if any question arises a check back can be made to verify the chemical annaies anna lysis I 1 s T at the hot plant a rock cru crusher slier is 1 in ape operation breaking up the large cobble ly stones that came along with the g r av Vre duing them to the proper s size the firm holding the patent on t this his preparation guarantees the inlet mixture re and so the process has been I 1 reduced to a science the material being accurately graded and weighed I 1 in oi order der to give it the proper strength 1 the vats where the bitumen is pt 1 reduced to liquid form and there are C I 1 awn av horii will hold 21 barrels each an jie attrial at arial is is heated to a era of degrees fahrenheit before it is mixed with the sand and arvael gr mr air declared that the mater bial fal that is going into the conati notion I 1 ot of the top lor for brigham ci tys streets is is the best that cau can possibly 1 sibly be obtained he added further that the job this city is getting in the iway way of street paving is of the very highest character and one that will last and give satisfaction tor for a great many years to come |