Show Road crew r heats chops highway ee eethen then resurfaces Traffic single file on us S 40 4 I r M Mt t l A 6 9 i I I 1 IE 1 r Jit t Ji i t lii i J 1 w J YA A 1 a i L- L r J n TRAFFIC ON US 40 moves in single file past equipment that prepares the pavement for resurfacing Three heater trucks boost the temperature of the pavement to about degrees so the top inch or so can be mixed and then injected with an r III 5 y j 1 I T r t rt t I II I II II I I 1 A HUGE rake attached to a road grader breaks up the hot asphalt The graders grader's blade then it getting rid of bumps water oil solution to prevent cracking Two coats of asphalt follow Crews have worked on US 40 between Naples and Jensen The preparation process is used for bumpy roads a aiN d t iN A A At Ad J r 4 a ea 3 1 M a M rh m ux erada x A WORK CREW watches over a sprayer that emits a solution known as which rejuvenates pavement by activating oil in the asphalt if cracks can be prevented in the old pave pave- pavement ment the new surface will resist cracking say DOT officials e s I I In 0 t r t A lot more goes Into a highway especially a major route than just putting the asphalt on The extra ef ef- ef effort fort reduces the cost of the job and creates a better highway A caravan of specially trucks the paving equipment as part of a resurfacing job on US 40 east of Jensen The preparation improves the theold theold old surface by heating up the pavement mixing it up and s It The Injection tion of a rejuvenating solution follows as asa asa a step to prevent cracking If the old surface cra cracks ks the new sur sur- sur surface face will eventually said Lee Carlisle an Inspector for the Utah Department of Transportation Its a lot cheaper than It would be asphalting it he said of the preparation work As it is the paving contractor will put five Inches of asphalt onto the highway The first two inch layer with rock no big big- bigger bigger ger than three eighths three eighths of an inch thick will be laid down as a cushion explain explain- explained ed Rich Bird materials engineer assis assis- assis assistant tant for the DOT A fine asphalt mix will help prevent cracking he said The sur sur- sur surface face layer will be laid three Inches deep with material not to exceed three quarters of an inch In diameter Submitted winning bid Paving and Construction Co Inc Draper submitted the winning bid to the DOT of for the mile project The distance includes the section of US 40 from the Vernal east city limits to the Green River east of Jensen Inc awarded a sub contract to toL toL L C Nielson a Provo firm to do the preparation work The DOTs DOT's estimate of the work was nearly 22 million Carlisle said three heat trucks raise the temperature of the surface to about degrees A road grader with some ex- ex extra extra tra equipment follows A tool attached to the front of the grader called a breaks up the soft hot pavement pave pave- pavement ment like a rake The graders grader's blade smoothes the asphalt Then a re- re rejuvenating rejuvenating agent known as Is sprayed on the asphalt filling In the cracks Carlisle said the result is a strong sur- sur surface surface face to put the new asphalt lt on He said the scarifying machine is sup sup- supposed supposed posed to loosen just an Inch worth of the theold theold old pavement He tests the density of the loose pavement occasionally to make sure the rake breaks up the right amount of pavement If its it's too much we dont don't mind that well we'll take all we can can get said Carlisle If it comes under well we'll have him app app- apply apply ly more heat or dig deeper We have so many spec specifications on a transcontinental highway like this We have to use three trucks to create enough heat for the to work properly he said ReJuvenates old pavement pavement Bird said the solution re- re rejuvenates re- re rejuvenates the old pavement by extending the life of the oil in the asphalt The use of heat and the scar scarifying ying machine make the pavement level The heating and scarifying technique is not used for all resurfacing jobs said Bird Whether the process is used depends on the condition of the pavement pave pave- pavement ment he added The DOT had to lay laymore laymore more asphalt before starting the heating and scarifying process he said The new surface would reflect the cracks in the theold theold old pavement Bird said the DOT expects to call for forbids forbids bids before the end of the year on resurfacing facing about 12 miles of US 40 west of Vernal That stretch of pavement is in good enough condition to do without heating he said |