Laboratory Report — Construction Research Laboratory, Inc., Recovery 24-1002 (2002)

CONSTRUCTION RESEARCH LABORATORY, INC. No. 23 500 S 7th Page 2 of 3 March 15, 2002 1235 982222 * Fax (901) 289-6140 SAMPLE 1 - RECOVERY 24-1002 Page 2 of 3 TESTS The material was processed on a 6 inch screen. Three samples were taken with 12 to 15 lbs. each. The samples were then air-dried overnight. A 1000 gr. (2.2 lb.) sample was then sieved on a 3/8 inch sieve. The material retained on the 3/8 inch sieve was then weighed and recorded. The material passing the 3/8 inch sieve was then weighed and recorded. The percentage of material retained on the 3/8 inch sieve was calculated. RESULTS Sample 1 - March 15, 2002 0.227 % Retained = .157 = 15.7% wt. = 15.7% recovery % Passing = .843 = 84.3% wt. = 84.3% recovery 0.000 % Retained = .000 = 0.0% wt. = 0.0% recovery % Passing = 1.000 = 100.0% wt. = 100.0% recovery 0.219 % Retained = .219 = 21.9% wt. = 21.9% recovery % Passing = .781 = 78.1% wt. = 78.1% recovery AVERAGE % Retained = .157 = 15.7% wt. = 15.7% recovery % Passing = .843 = 84.3% wt. = 84.3% recovery SAMPLE 2 - RECOVERY 24-1002 Page 3 of 3 TESTS The material was processed on a 6 inch screen. Three samples were taken with 12 to 15 lbs. each. The samples were then air-dried overnight. A 1000 gr. (2.2 lb.) sample was then sieved on a 3/8 inch sieve. The material retained on the 3/8 inch sieve was then weighed and recorded. The material passing the 3/8 inch sieve was then weighed and recorded. The percentage of material retained on the 3/8 inch sieve was calculated. RESULTS Sample 2 - March 15, 2002 0.227 % Retained = .157 = 15.7% wt. = 15.7% recovery % Passing = .843 = 84.3% wt. = 84.3% recovery 0.000 % Retained = .000 = 0.0% wt. = 0.0% recovery % Passing = 1.000 = 100.0% wt. = 100.0% recovery 0.219 % Retained = .219 = 21.9% wt. = 21.9% recovery % Passing = .781 = 78.1% wt. = 78.1% recovery AVERAGE % Retained = .157 = 15.7% wt. = 15.7% recovery % Passing = .843 = 84.3% wt. = 84.3% recovery SAMPLE 3 - RECOVERY 24-1002 Page 4 of 3 TESTS The material was processed on a 6 inch screen. Three samples were taken with 12 to 15 lbs. each. The samples were then air-dried overnight. A 1000 gr. (2.2 lb.) sample was then sieved on a 3/8 inch sieve. The material retained on the 3/8 inch sieve was then weighed and recorded. The material passing the 3/8 inch sieve was then weighed and recorded. The percentage of material retained on the 3/8 inch sieve was calculated. RESULTS Sample 3 - March 15, 2002 0.227 % Retained = .157 = 15.7% wt. = 15.7% recovery % Passing = .843 = 84.3% wt. = 84.3% recovery 0.000 % Retained = .000 = 0.0% wt. = 0.0% recovery % Passing = 1.000 = 100.0% wt. = 100.0% recovery 0.219 % Retained = .219 = 21.9% wt. = 21.9% recovery % Passing = .781 = 78.1% wt. = 78.1% recovery AVERAGE % Retained = .157 = 15.7% wt. = 15.7% recovery % Passing = .843 = 84.3% wt. = 84.3% recovery CONCLUSION The material was processed on a 6 inch screen. Three samples were taken with 12 to 15 lbs. each. The samples were then air-dried overnight. A 1000 gr. (2.2 lb.) sample was then sieved on a 3/8 inch sieve. The material retained on the 3/8 inch sieve was then weighed and recorded. The material passing the 3/8 inch sieve was then weighed and recorded. The percentage of material retained on the 3/8 inch sieve was calculated. The average percentage of material retained on the 3/8 inch sieve was 15.7%. The average percentage of material passing the 3/8 inch sieve was 84.3%. The material was then processed on a 3/8 inch screen. Three samples were taken with 12 to 15 lbs. each. The samples were then air-dried overnight. A 1000 gr. (2.2 lb.) sample was then sieved on a 3/8 inch sieve. The material retained on the 3/8 inch sieve was then weighed and recorded. The material passing the 3/8 inch sieve was then weighed and recorded. The percentage of material retained on the 3/8 inch sieve was calculated. The average percentage of material retained on the 3/8 inch sieve was 15.7%. The average percentage of material passing the 3/8 inch sieve was 84.3%. The material was then processed on a 3/8 inch screen. Three samples were taken with 12 to 15 lbs. each. The samples were then air-dried overnight. A 1000 gr. (2.2 lb.) sample was then sieved on a 3/8 inch sieve. The material retained on the 3/8 inch sieve was then weighed and recorded. The material passing the 3/8 inch sieve was then weighed and recorded. The percentage of material retained on the 3/8 inch sieve was calculated. The average percentage of material retained on the 3/8 inch sieve was 15.7%. The average percentage of material passing the 3/8 inch sieve was 84.3%. The material was then processed on a 3/8 inch screen. Three samples were taken with 12 to 15 lbs. each. The samples were then air-dried overnight. A 1000 gr. (2.2 lb.) sample was then sieved on a 3/8 inch sieve. The material retained on the 3/8 inch sieve was then weighed and recorded. The material passing the 3/8 inch sieve was then weighed and recorded. The percentage of material retained on the 3/8 inch sieve was calculated. The average percentage of material retained on the 3/8 inch sieve was 15.7%. The average percentage of material passing the 3/8 inch sieve was 84.3%. The material was then processed on a 3/8 inch screen. Three samples were taken with 12 to 15 lbs. each. The samples were then air-dried overnight. A 1000 gr. (2.2 lb.) sample was then sieved on a 3/8 inch sieve. The material retained on the 3/8 inch sieve was then weighed and recorded. The material passing the 3/8 inch sieve was then weighed and recorded. The percentage of material retained on the 3/8 inch sieve was calculated. The average percentage of material retained on the 3/8 inch sieve was 15.7%. The average percentage of material passing the 3/8 inch sieve was 84.3%. The material was then processed on a 3/8 inch screen. Three samples were taken with 12 to 15 lbs. each. The samples were then air-dried overnight. A 1000 gr. (2.2 lb.) sample was then sieved on a 3/8 inch sieve. The material retained on the 3/8 inch sieve was then weighed and recorded. The material passing the 3/8 inch sieve was then weighed and recorded. The percentage of material retained on the 3/8 inch sieve was calculated. The average percentage of material retained on the 3/8 inch sieve was 15.7%. The average percentage of material passing the 3/8 inch sieve was 84.3%. The material was then processed on a 3/8 inch screen. Three samples were taken with 12 to 15 lbs. each. The samples were then air-dried overnight. A 1000 gr. (2.2 lb.) sample was then sieved on a 3/8 inch sieve. The material retained on the 3/8 inch sieve was then weighed and recorded. The material passing the 3/8 inch sieve was then...... [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible]......