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OROP10 COUNCIL MEESING HELD SEPTEtZBER 13, 1976 Page I8 <br /> . Your subcontractor, Blacktop Construction of 1976 SEAL COATING PROGRAi`� <br /> Shakopee, r7innesota, has approached J. L. Shealy <br /> yCompany as a supplier of the aggregate specified <br /> for placement under the contracte The aggregate <br /> specified for the job was FA 2 Class A according <br /> to the PZinnesota Highway Department standard <br /> • specification. <br /> � On July 23, 1976, two samples of seal coat <br /> � aggregate were delivered to Twin City Testing <br /> and Engineering Laboratory, Inc. for analysis <br /> � following the trucking in of first incrimate <br /> of aggregate material. Test results on the <br /> � Shealy material revealed that the aggregate <br /> did not meet specificationso <br /> � <br /> * Of particular concern, was the percent passing the <br /> PTo. 200 sieve. Pmere the first sample revealed <br /> � 6, 3 percent passing, the second sample revealed <br /> 7.6 percent passing the No. 200. As you are <br /> aware, the Piinnesota Highway Department speci- <br /> fications for FA 2 call for 0 to 2 percent <br /> � passing the Noo 200 sieve. Following the report- <br /> . ing of the results to the City by Tcain City <br /> Testing, �ve addressed a letter to J, L. Shealy <br /> � Company requesting their analysis of the situation <br /> and their suggestions as to why the Material <br /> � delivered did not meet the specifications. <br /> According to r1r, Bob Krase of J, Lo Shealy Company, <br /> the plant is not able at this time to proc�uce an <br /> • aggregate within the FA 2 classification. <br /> • Since the City°s objective in this improvenent <br /> project is to preserve the quality of the Orono <br /> � streets, the City will be willing to allow some <br /> slight deviation from the FA 2 classification in <br /> � order to expedite the completion of sealing <br /> operations, �^�e would ask, therefore, that your <br /> � subcontractor submit or that his supplier submit <br /> a letter of guarantee to the City of Orono outlining <br /> � the specifications which will be followed for the <br /> supply of aggregate materialo <br /> � The City c�ill not accept material ��hich contains <br /> rnore than 30 percent of the ag_qreqate passinc� <br /> � the r]o, 10 sieveo nor more th�n 11 percent <br /> passing the rto. �40 sieve, nor more than 3 percent <br /> � passing the r1o. 200 sieve. The averaqe percent <br /> passing the No. 10 should be approximatelv 25 <br /> percent �aith the average percent passinct the No. 40 <br /> � sieve at approximately 7 percent. You �aill note <br /> that these percentages are in excess of the TZfID <br /> � sPecification for FA2 material, <br /> � (Continued) <br /> � <br />