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Edition:Interim report II.
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Abstract:Shrinkage cracks in cement-stabilized bases/subbase can be alleviated by specifying the right cement dosage, or by other additives/procedures that suppress crack susceptibility. A field trial of six 1000 ft sections to investigate several alternative techniques was initiated and constructed in August 2000. The following additives/procedures are included for investigation: 5.5% cement additive (control); design based on a reduced strength criteria, 5.5% cement precracked while "young", 5.5% cement precut (grooved) every 3m (10 ft), 3.5% cement with 8% fly ash, Ground granulated blast furnace slag (GGBFS) complemented by 2% lime, Three percent lime and 12% fly ash, the current favored stabilization technique of MDOT.
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