1980-06-30 Special Called Meeting

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._ ~ ~ • Percent by Weight Grade 1: Retained on 7/8" sieve .0 Retained Retained on on 3/4" 5/8" sieve sieve .0-5 ~ 85-100 `. ~~` _.. Retained on 3/8" sieve 95-100 Retained on No. 10 sieve 99-100 Grade 2: Retained on 3/4" sieve .0 Retained on 5/8" sieve .0-5 Retained on 1/2" sieve 85-100 Retained on 3/8" sieve 95-100 Retained on No. 10 sieve.. 99-100 , Grade 3: Retained on 5/8" sieve .0 Retained on 1/2" sieve .0-5 Retained on 3/8" sieve 85-100 Retained on 1/4" sieve 95-100 Retained on No. 10 sieve 99-100 Grade 4: Retained on 1/2" sieve .0 Retained on 3/8" sieve., .0-5 Retained on 1/4" sieve 95-100 Retained on No. 10 sieve 99-100 Grade 5: Retained on 3/8" sieve .0 Retained on 1/4" sieve .0-5 Retained on No. 4 sieve... .". 50-100 __ Retained on No. 10 sieve 99-100 The aggregate shall not contain more than 1,0 percent by weight of fine dust, clay-like particles and/or silt present when tested ~n accordance with Test rlethod Tex-217-F, Part 2. Percoated Aggregates, Precoated aggregates shall be aggregates of the type specified, treated (coated or fluxed) with 0.5 to 1,5 per- cent by weight of percoat material or flux oil meeting the require- ments of this specification and the approval of the City. The part- icular grade of precoated aggregate speLified shall mee.t_all require- ments of Article 305.4, prior ro the application of the precoat material or flux oil. Water. Water in an amount not to exceed 3 percent by weight of the mixture may be used in preparing the mixture. The water shall be added as directed by the City during the mixing, In the event water is used in the mixing operation adequate measuring devices shall be used and the water shall be administered to the mix through an app- roved spray bar. ." Physical Properties of the Mixture. The materials may be mixed on ''" the ,job or at some central mixing plant and shipped ready for use. Mixes that do not remain workable a sufficient period of time or maintain flow qualities such that the precoated aggregate may be -~ satisfactorily spread by normal approved mechanical spreading de- •}`' vices will not be acceptable, ''„,.>: , ;,.~" >R=;:,~" .~~;; ~ _ , ~*'a. i1 . ~ ~.~ .......J _ _" ... .Y~.......