02373Riprap

RIPRAP

PART 1 GENERAL

1.1SECTION INCLUDES

1.2RELATED SECTIONS

1.3REFERENCES

Aggregate by Abrasion and Impact in the Los Angeles Machine

Magnesium Sulfate

1.4DEFINITIONS

of the rocks are smaller and 50 percent are larger.

1.5SUBMITTALS

Table 1, for information.

Riprap

PART 2 PRODUCTS

2.1RIPRAP

seams, cracks and other structural defects.

into smaller pieces in the process of handling and placing.

Table 1 Physical Properties Property Value Test Method Specific Gravity 2.5 min AASHTO T 85 Absorption 2% max AASHTO T 85 Soundness of Aggregate using Sodium Sulfate 12% max AASHTO T 104 or or Magnesium Sulfate 17.5% max Resistance to Degradation 40% max AASHTO T 96

mass. Refer to Table 2 for riprap gradation limits.

inspection, as determined by the Engineer.

Table 2 Riprap Gradation Limits Rock Diameter Range Percent of Gradation

1.5D50 to 1.7D50 100 1.2D50 to 1.4D50 85 1.0D50 to 1.15D50 50 0.4D50 to 0.6D50 15 0.1D50 10

2.2EROSION CONTROL GEOTEXTILE

average roll value.

Riprap

PART 3 EXECUTION

3.1PREPARATION

to Section 02317.

3.2LOOSE RIPRAP

uniformly distributed and the smaller rocks serve to fill the spaces between the larger rocks.

3.3COMPACTED RIPRAP

inches.

END OF SECTION

Riprap