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FP-96 English Version - Eastern Federal Lands Highway Division

FP-96 English Version - Eastern Federal Lands Highway Division

FP-96 English Version - Eastern Federal Lands Highway Division

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Section 704(3) Sodium sulfate soundness loss (5 cycles), 15% max.AASHTO T 104(4) Los Angeles abrasion, AASHTO T <strong>96</strong> 50% max.(5) Liquid limit, AASHTO T 89 30 max.(b) Electrochemical requirements.(1) Resistivity, AASHTO T 288 3000 Ω]cm min.(2) pH, AASHTO T 289 5.0 to 10.0(3) Sulfate content, AASHTO T 290 1000 ppm max.(4) Chloride content, AASHTO T 291 200 ppm max.Note: Tests for sulfate and chloride content are not required whenpH is between 6.0 and 8.0 and the resistivity is greater than 5000ohm centimeters.Table 704-4Select Granular Backfill GradationSieve Size Percent by Mass PassingDesignated Sieve(AASHTO T 27 and T 11)4 inch 1003 inch 75 - 100No. 200 0 - 15704.11 Special Grout Backfill. Furnish lean grout slurry composed of 3parts portland cement and 8 parts fine aggregate by volume. Fly ash may besubstituted for 2 of the 3 parts portland cement. Conform to thefollowing:(a) Water/cement ratio 1.5(b) Portland cement Subsection 701.01(c) Fly ashAASHTO M 295 class C(d) Fine aggregate Subsection 703.01(e) Water Subsection 725.01687

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