B.08 MTC Chinook grainsize results Sep 2020.pdf
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- Solicitation number
- W9127N25B0004
About this file
This document is a grain size distribution analysis report for samples collected from the Chinook Channel. The report was prepared by Materials Testing & Consulting, Inc. for the U.S. Army Corps of Engineers - Portland District as part of project #20S169.
The report summarizes the methodology and results of grain size testing performed on 16 samples submitted on October 14, 2014. The samples were analyzed according to modified ASTM D422 methodology, with additional sieves included per the client's request. The report provides summary tables and plots of the grain size distribution for two composite samples. Key findings indicate the samples were sandy in nature with limited fine material, requiring curve fitting between the sand and silt fractions. No further anomalies were noted during the testing.
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Project: Date Received:
Project #: Sampled By:
Client : Date Tested:
Source: Tested By:
MTC Sample#:
Reviewed by:
CASE NARRATIVE
Materials Testing & Consulting, Inc.
Geotechnical Engineering • Special Inspection • Materials Testing • Environmental Consulting
Chinook Channel July 31, 2020 20S169 Client
All results apply only to actual locations and materials tested. As a mutual protection to clients, the public and ourselves, all reports are submitted as the confidential property of clients, and authorization for publication of statements, conclusions or extracts from or regarding our reports is reserved pending our written approval.
Corporate ~ 777 Chrysler Drive • Burlington, WA 98233 • Phone (360) 755-1990 • Fax (360) 755-1980 Regional Offices: Olympia ~ 360.534.9777 Bellingham ~ 360.647.6111 Silverdale ~ 360.698.6787 Tukwila ~ 206.241.1974
Visit our website: www.mtc-inc.net
USACE - Portland September 11, 2020 Multiple B. Goble Multiple
1. Sixteen samples were submitted for analysis on October 14, 2014.
2. The samples were submitted for grain size distribution according to ASTM D422. The samples were prepared according to ASTM D421. The method was modified to include a No. 16 and a No.
50 sieve, per the client.
3. An assumed specific gravity of 2.65 was used in the hydrometer calculations.
4. A standard milkshake mixer type device was used to disperse the fine fraction sample for one minute.
5. One sample from another job was chosen for triplicate analysis. The triplicate data can be found on the QA summary table.
6. Due to the sandy nature of the samples, there was not enough fine material to acquire accurate hydrometer readings. The samples required curve fitting between the sand and silt fractions.
7. The data is provided in summary tables and plots.
8. There were no further anomalies in this project.
1. Two samples were submitted for grain size distribution according to modified ASTM D422. The samples were prepared according to ASTM D421. An assumed specific gravity of 2.65 was used in the hydrometer calculations. A standard milkshake mixer type device was used to disperse the fine fraction sample for one minute.
2. The data is provided in summary tables and plots.
3. There were no noted anomalies during this testing..
Project: Client:
Project #:
Date Received: Sampled by:
Date Tested: Tested by:
Sieve Size (microns) 3" 2" 1 1/2" 1" 3/4" 1/2" 3/8" #4 (4750)
#10 (2000)
#20 (850)
#40 (425)
#60 (250)
#100 (106)
#200 (75)
#230
(63) 32 22 13 9 7.0 3.2
BBCC-01-COMP 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 99.9 99.3 98.5 97.0 91.5 83.3 78.7 32.8 23.0 14.8 9.8 8.2 6.6 BBCC-02-COMP 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 99.6 98.4 79.8 33.1 19.2 17.1 11.5 7.9 4.4 3.5 3.5 2.6
Reviewed by:
Materials Testing & Consulting, Inc.
Geotechnical Engineering • Special Inspection • Materials Testing • Environmental Consulting
Chinook Channel USACE - Portland 20S169
Corporate ~ 777 Chrysler Drive • Burlington, WA 98233 • Phone (360) 755-1990 • Fax (360) 755-1980 Regional Offices: Olympia ~ 360.534.9777 Bellingham ~ 360.647.6111 Silverdale ~ 360.698.6787 Tukwila ~ 206.241.1974
Visit our website: www.mtc-inc.net
July 31, 2020 Client September 11, 2020 B. Goble
Percent Finer (Passing) Than the Indicated Size - ASTM D422
Project: Client:
Project #:
Date Received: Sampled by:
Date Tested: Tested by:
Description
Coarse Sand
% Very Coarse
Silt
Coarse
Silt
Medium
Silt
% Very Fine Silt
Particle Size (microns) 3-2" 2-1 1/2" 1 1/2"-1" 1-3/4" 3/4-1/2" 1/2-3/8" 3/8"-4750 4750- 2000 2000-850 850-425 425-250 250-106 106-75 75-63 63-32 32-22 22-13 13-9 9-7 7-3.2 3.2-1.3 <1.3
BBCC-01-COMP 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.7 0.7 1.5 5.5 8.2 4.6 45.9 9.8 8.2 4.9 1.6 1.6 0.0 6.6 BBCC-02-COMP 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 1.3 18.6 46.7 13.9 2.1 5.6 3.5 3.5 0.9 0.0 0.9 0.0 2.6
Reviewed by:
% Fine Silt
July 31, 2020 Client B. Goble
Percent Retained in Each Size Fraction
% Medium Sand% Gravel% Coarse Gravel
September 11, 2020
Corporate ~ 777 Chrysler Drive • Burlington, WA 98233 • Phone (360) 755-1990 • Fax (360) 755-1980 Regional Offices: Olympia ~ 360.534.9777 Bellingham ~ 360.647.6111 Silverdale ~ 360.698.6787 Tukwila ~ 206.241.1974
Visit our website: www.mtc-inc.net
Materials Testing & Consulting, Inc.
Geotechnical Engineering • Special Inspection • Materials Testing • Environmental Consulting
Chinook Channel USACE - Portland 20S169
% Clay% Fine Sand
110100100010000100000
Pe rc en t F in er
T ha n
Particle Diameter
Grain Size Distribution by Hydrometer
BBCC-01-COMP BBCC-02-COMP
Gravel Sand Silt ClayGravel Sand Silt Clay
| Case Narrative |
| Report1 |
| Report2 |
| Chart 1 |
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