Ariston Pacific, Inc. 5/9/2016 - Laserfiche WebLink

I 1 Blended hydraulic cement shall be either Type IP(X)(MS), Type IS(X)(MS), Type I 2 IT(PX)(LY), Type IT(SX)(LY), or Type IL(X) cement conforming to AASHTO M 240 or 3 ASTM C 595, except that the portland cement used to produce blended hydraulic 4 cement shall not contain more than 0.75 percent alkalies by weight calculated as Na20 5 plus 0.658 K20 and shall meet the following additional requirements: I6 7 1. Type IP(X)(MS) - Portland-Pozzolan Cement where (X) equals the targeted 8 percentage of fly ash, the fly ash is limited to a maximum of 35 percent by I 9 weight of the cementitious material; (MS) indicates moderate sulfate 10 resistance. 11 I 12 2. Type IS(X)(MS) - Portland Blast- Furnace Slag Cement, where: (X) equals the 13 targeted percentage of ground granulated blast-furnace slag, the ground 14 granulated blast furnace slag is limited to a maximum of 50 percent by weight 15 of the cementitious material; (MS) indicates moderate sulfate resistance. 16 17 3. Type IT(PX)(LY), where (PX) equals the targeted percentage of pozzolan, and 18 (LY) equals the targeted percentage of limestone. The pozzolan (PX) shall be 19 Class F fly ash and shall be a minimum of 25% and a maximum of 35%. (LY) 20 shall be a minimum of 5% and a maximum of 15%. Separate testing of each 21 source of fly ash at each proposed replacement level shall be conducted in I22 accordance with ASTM C 1012 at the storage temperature prescribed in 23 Section 9.3 of the test procedure, as well as at a storage temperature of 5.0 ± 24 2.0 °C. Expansion at 1 year shall be 0.10% or less for each test temperature. 1 25 26 4. Type IT(SX)(LY), where (SX) equals the targeted percentage of slag cement, 27 and (LY) equals the targeted percentage of limestone. (SX) shall be a I 28 minimum of 30% and a maximum of 50%. (LY) shall be a minimum of 5% and 29 a maximum of 15%. Separate testing of each source of slag at each proposed 30 replacement level shall be conducted in accordance with ASTM C 1012 at the I 31 storage temperature prescribed in Section 9.3 of the test procedure, as well as 32 at a storage temperature of 5.0 ± 2.0 °C. Expansion at 1 year shall be 0.10% 33 or less for each test temperature. I 34 35 5. Type IL(X), where (X) equals the targeted percentage of limestone, and shall 36 be a minimum of 5% and a maximum of 15%. Type IL(X) shall only be used 37 with either 25% to 35% replacement with Class F fly ash, or with 30% to 50% I38 replacement with slag cement. Separate testing of each source of fly ash or 39 slag at each proposed replacement level shall be conducted in accordance 40 with ASTM C 1012 at the storage temperature prescribed in Section 9.3 of the I41 test procedure, as well as at a storage temperature of 5.0 ± 2.0 °C. Expansion 42 at 1 year shall be 0.10% or less for each test temperature. 43 I 44 The first sentence of the second paragraph is revised to read: 45 46 The source and weight of the fly ash or ground granulated blast-furnace slag shall be I 47 certified on the cement mill test report or cement certificate of analysis and shall be 48 reported as a percent by weight of the total cementitious material. 49 I 50 This section is supplemented with the following new paragraph: 51 52 Limestone shall meet the requirements of AASHTO M 240 or ASTM C 595. I I AMENDMENTS TO THE 2014 STANDARD SPECIFICATIONS BOOK Revised: 8/3/15