464 ALASKA 2020 SECTION 681 465 ALASKA 2020 DIVISION 700 –MATERIALS SECTION 701 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.
Source: Alaska Standard Specifications for Highway Construction, 2020 Edition. Pages 492–492 of 584.