The United States is one of the few countries where requirements for cellulose fibers and mineral stabilizing agents have been standardized. Some other countries have adopted the U. S. requirements in their own specifications.
The requirements for cellulose and mineral fiber SMA stabilizers after AASHTO MP-8-05 include the following: [22]
• Shot (nonfibrous material) content
• Passing 0.25-mm sieve: 90% ± 5%
• Passing 0.063-mm sieve: 70% ± 10%
• Ash content of cellulose fibers: 18% ± 5% nonvolatiles
• pH of cellulose fibers: 7.5 ± 1.0
• Oil absorption of cellulose fibers: 5.0 ± 1.0 times fiber mass
• Moisture content of cellulose fibers: maximum 5% (m/m)
