1, lime-fly ash base refers to lime-stabilized soil base, and lime-fly ash macadam is also called lime-fly ash stabilized macadam. It is a semi-rigid structure with strength, which is made of inorganic binder lime, fly ash and graded crushed stone mixed with a certain amount of water, rolled and maintained.

2. The maximum dry density of lime-fly ash macadam cannot be determined by the test section, but must be determined by the composition ratio design, that is, several materials are combined for many times according to different proportions and different water contents, and then heavy compaction tests are carried out respectively.

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