465 ALASKA 2020 DIVISION 700 –MATERIALS HYDRAULIC CEMENT AND SUPPLEMENTARY CEMEN TITIOU S MATERIALS
701-1.01 GENERAL. Meet the following general requirements for all cementitious materials
furnished: Before using, retest Portland cement stored longer than 3 months in bags or 6 months in bulk for compressive strength, time of setting, and los s on ignition according to AASHTO M 85. Store separately different types or brands of cementitious materials, or cementitious materials from different mills. Protect cementitious materials from dampness during shipment and storage. Do not use partially set cement or cement which contains caked lumps. Do not use cement salvaged from discarded or used bags.
701-2.01 PORTLAND CE MENT. Meet AASHTO M 85, Type I, II, or III including the low -alkali
cement requirement shown in Table 2—Optional Chemical Requirement s.
701-2.02 BLENDED HYDRAULIC CEMENT. Meet AASHTO M 240, Type IP, or Type IS. Report
the weight of pozzolan and ground granulated blast furnace slag as percent of weight of the total cementitious material. Do not vary the pozzolan and ground granulated blast furnace slag constituent content from the certified value more than ±5 percent by weight of the total cementitious material. Limit pozzolan in Type IP to fly ash. Meet the replacement limits in Table 701-1 TABLE 701 -1 BLENDED HYDRAULIC CE MENT LIMITS Cement Type Constituent Percent of Total Cementitious Material by Weight Maximum Type IP Fly Ash 35% Type IS Slag cement 40%
701-2.03 GROUT. Non-shrink, non- corrosive, non- metallic, cement -based grout meeting ASTM
C1107, except develop a 28- day compress ive strength of at least 9,000 psi when tested according to AASHTO T 106 or ASTM C109.
701-2.04 FLY ASH. Meet AASHTO M 295, Class C or Class F, including optional chemical
requirements as set forth in Table 2— Supplementary Optional Chemical Requirement .
701-2.05 GROUND GRANUL ATED BLAST -FURNACE S LAG. Meet AASHTO M 302, Grade
100 or Grade 120.
701-2.06 SILICA FUME . Meet AASHTO M 307.
701-2.07 DS GROUT. Use drilled shaft (DS) grout conforming to the following requirements:
1.Portland Cement Type I or Type II c ement meeting the requirements of Subsection 701- 2.01.
2.Fine Aggregate: Use fine aggregate meeting Subsection 703- 2.01, except 100 percent passing the No. 4 sieve.
3.Potable Water : Use water meeting the requirements of Subsection 712- 2.01. 466 ALASKA 20 20 4. Proportioning: Mi x grout in proportions using at least 564 lbs/yd3 of Portland cement, fine aggregate, and with enough water to produce a flowable mixture. Do not exceed 67 gal/yd3 of water. Thoroughly mix DS grout to a uniform consistency before injecting into soil surrounding drilled shaft casing and filling CSL tubes.
701-2.08 Post -Tensioned Grout . (Reserved)
701-2.09 CERTIFICATI ON. Furnish a Certified Test Report from the manufacturer or an
independent testing laboratory containing a list of dimensional, chemical, met allurgical, electrical, physical, and other required test results of the specified material certifying that the product or assembly has passed all specified tests. Include the following:
1.the project name and number;
2.the manufacturer's name;
3.the name of the product or assembly;
4.a complete description of the material;
5.country of origin;
6.the lot, heat, or batch number that identifies the material;
7.all required test results for the specified material from the same lot, heat, or batch defined in Subsection 701- 2.09.6;
8.a statement, signed by a person having legal authority to act for the manufacturer or the independent testing laboratory, that the test results show that the product or assembly to be incorporated into the project has been sampled and tested and the samples have passed all specified tests. Tag, stencil, stamp, or otherwise mark all materials or assemblies furnished under certification to the project with the lot number, heat number, batch number, or other appropriate identification, which can be readily recognized and legible, and is identical to the accompanying Certified Test Report. 467 ALASKA 2020 SECTION 702 ASPHALT MATERIALS
702-2.01 ASPHALT BIN DER . Meet AASHTO M 320 for the specified Performance Grade.
Re-refined engine oil bottoms (REOB) / vacuum tower asphalt extenders (VTAE) shall not be used as a modifier of Asphalt Binder. REOB/VTAE are materials as defined in Asphalt Institute document IS -235. Furnish a certificate of compliance according to Subsection 106- 1.05.1 certifying that REOB/VTAE were not us ed as a modifier of Asphalt Binder.
702-2.02 CUT -BACK AS PHALT . Meet AASHTO M 81 and M 82.
702-2.03 EMULSIFIED ASPHALT . Meet AASHTO M 140 and the following:
1.Cationic Emulsified Asphalt . Meet AASHTO M 208.
2.Special Tack Emulsion, STE -1. Meet the followin g, when tested using AASHTO T 59: TESTS ON EMULSION Viscosity @ 77 °F, SSF 30, max. Storage Stability, I day, % 1, max. Demulsibility, 35 mL 0.8% SDS, % 25, min. Particle Charge Positive* Sieve Test, % Retained 0.10, max. Distillation Oil by Vol. of Emulsion, % 5, max. Distillation Residue by Wt. of Emulsion, % 45, min. TESTS ON RESIDUE Penetration @ 77 °F 100-250 Ductility @ 77 °F, 5 cm/min., cm 40, min. Solubility in TCE, % 97.5, min. * If Particle Charge test is inconclusive, material having a max. pH value of 6.7 is acceptable.
702-2.04 STORAGE AND APPLICATION TEMPERA TURES . Store, mix, and apply asphalt
materials within the following temperature ranges: TABLE 702 -1 STORAGE AND APPLICAT ION TEMPERATURES Type and Grade of Material Spray °F Mix °F Storage °F MC-30 85+ 140, max. MC-250 165+ 165-220 240, max. RC-800 200+ 200, max. CRS -2 125-175 100-175 CRS -2P 125-175 100-175 CMS -2 125-175 120-160* 100-175 CSS-1 90-120 90-160* 50-125 STE-1 70-140 70-150 50-125 * Temperature of the emulsified asph alt in the pugmill mixture. Store, mix, and apply asphalt binder within the temperature ranges recommended by the manufacturer or shown on the approved Job Mix Design.
702-2.05 JOINT ADHES IVE. Meet the requirements of Table 702- 2.
Source: Alaska Standard Specifications for Highway Construction, 2020 Edition. Pages 493–494 of 584.