W912ES-18-T-0004_Riprap_Method_A_B.pdf

WORK SHEET FOR GRADATION ANALYSIS OF RIPRAP

METHOD A

Project Name: Date:

Riprap Type: Test No.

Source, Quarry, or Pit:

Sample Location: Test Made By:

Part 1. Weigh all stones larger than 5 pounds and record.

(1) PASSING WT. 5 lbs.

(2) RETAINED WT. 5 lbs. PAN

(3) ------- -------

(4) TOTALS

Rows (1) & (2) Enter 5 to 7 weight classes to yield approx. 75%, 50%, 30%, and 15% finer points.

Row (3) List weight of each stone. Attach additional sheets if necessary.

Row (4) Add all individual stone weights listed in each column.

Part 2. Summary Table.

(5) WEIGHT CLASSES (6) (7) (8)

PASSING RETAINED TOTAL WEIGHT CUMMULATIVE TOTAL PERCENT

(stone wt. (stone wt. EACH CLASS WEIGHT PASSING PASSING in lbs.) in lbs.) (lbs.) (lbs.) (%)

5 lbs.

5 lbs. PAN

SAMPLE TOTAL -------- --------

Column (5) Enter same weight classes used in Rows (1) and (2).

Column (6) Enter weights of material from Row (4) Column (7) Add column (6) from bottom up to get cumulative weight passing.

Column (8) Divide column (7) by sample total to get total percent passing.

WORK SHEET FOR GRADATION ANALYSIS OF RIPRAP

METHOD B

Project Name: Date:

Riprap Type: Test No.

Source, Quarry, or Pit:

Sample Location: Test Made By:

Part 1. Separate rock into 5 to 7 piles, ordered by size. The largest pile should contain 2 to 5 stones. Intermediate piles between the largest stones and those smaller than 5 pounds should be approximately equal in total weight. Separate all stones before weighing.

Part 2. Summary Table.

(1) WEIGHT CLASSES (2) (3) (4)

PASSING RETAINED TOTAL WEIGHT CUMMULATIVE TOTAL PERCENT

(stone wt. (stone wt. EACH CLASS WEIGHT PASSING PASSING in lbs.) in lbs.) (lbs.) (lbs.) (%)

5 lbs.

5 lbs. PAN

SAMPLE TOTAL -------- --------

Column (1) Weight the smallest and largest stone in each pile. If weight classes overlap, adjust stones as necessary and repeat.

Column (2) Weigh the total amount of rock in each pile and record.

Column (3) Add column (2) from bottom up to get cumulative weight passing.

Column (4) Divide column (3) by sample total to get total percent passing.