Cement stabilized macadam takes graded macadam as aggregate, fills the gaps of aggregate with a certain amount of cementing material and sufficient mortar volume, and spreads and compacts according to the principle of embedding and squeezing.

Its compactness is close to its compactness, and its strength mainly depends on the interlocking principle between crushed stones. At the same time, there is enough mortar volume to fill the gap of aggregate. Its initial strength is high, and the strength increases with age, and soon forms a plate shape, so it has higher strength, better impermeability and frost resistance.

Extended data:

Raw materials and construction machinery and equipment:

(1) raw materials

1. cement: the initial setting time of cement is not less than 3h, and the final setting time is not less than 6h.

2. Aggregate specifications and stacking: Aggregates at the grass-roots level are divided into three grades: 0 ~ 4.75 mm, 4.75 ~ 13.2 mm, 13.2 ~ 3 1.5 mm, which must be stacked in different grades, and material inspection boards shall be set up.

All raw materials must be produced in the yard with pavement production qualification, and the incoming materials must be inspected at the specified frequency to prevent unevenness, over-specification, excessive silt content or other indicators from being unqualified.

(2) Construction machinery and equipment

1. mixer: the mixing equipment should have an automatic metering system with accurate metering (calibrated by the technical supervision department after installation), and the cold storage should have more than three warehouses, so the production speed can meet the requirements of construction progress.

2. Paver: Pave the road section with a width of 2.5 meters and a length greater than 50 meters with a paver.

3. Roller: 16t roller.

4. Sprinkler: It must meet the requirements of wet maintenance.

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