Description
soil mechanics lab report without introduction, the lab report includes sieve analysis, hydrometer and atterberg limits. Attached is the lab manual and data needed to perform calculations and graphs. below is the outline for the lab. Thank you.
Sample Calculations
For Sieve Analysis:
– Percent mass retained on each sieve
– cumulative mass retained on each sieve
– Percent Finer
– Percent Mass loss
– Coefficient of Curvature
– Coefficient of Uniformity
For Hydrometer analysis
– Corrections (Meniscus, Temperature, Zero-correction) (you made need to interpolate) – Corrected hydrometer reading for calculation of percent finer
– Percent Finer
– Corrected reading
– Effective depth (do not use manuals table. Instead, use formula 5.4)
– ?? (do not use manuals formula. Instead, use table 5.2 and interpolate)
– ??iameter of particles
– Correction of fines (percentage)
For Atterberg Limits
– Liquid Limit (Calculate from the graph and by using the empirical formula)
– Plastic limit
– Plastic index
– Flow index
– Activity (please use the percentage of clay from the Sieve and Hydrometer test report) Note: intermediate calculation steps may need to be calculated
New Jersey Institute of Technology
Results
– Table for Sieve Analysis
– Semilogarithmic graph of grain size distribution for Sieve Analysis
– Table for Hydrometer Analysis
– Semilogarithmic graph of grain size distribution for Hydrometer Analysis
– Combined Table*
– Combined Semilogarithmic graph of grain size distribution* (??10, ??30, ??60 have to be illustrated and be labeled)
* you have to apply modification for the combined Table and Graph
– Table for liquid limit
– Table for plastic limit
– Semilogarithmic graph of moisture content and number of blows (Liquid limit has to be illustrated in the graph and labeled)
Note: Do not forget to include all important information in the graphs and tables directly
Discussion
Note: All the requested information must be in order
– In a paragraph, explain the possible sources of error during your experiment
– In a separate paragraph, determine the percent of gravel, coarse sand, medium sand, fine sand, clay and silt (fines) size fraction for AASHTO and USCS (use Figure 1)
– In a separate paragraph, compare the Liquid limit result obtain with the logarithmic formula (US ARMY) vs graph
– In a separate paragraph, fully classify the soil by using AASHTO and USCS methodologies (full classification). Explain the stepsthat you followed in classifying the soil in detail. – In a separate paragraph, discuss the predominant clay mineral of the soil based on Liquid limit, plastic limit, and activity (use Figure 2)
– In a separate paragraph, explain what is the x-ray diffraction of soil particles and whats its purpose? –
Conclusion
– General comments and summary
– Mention the size fraction of the soil sample for AASHTO and USCS
– Mention the Soil classification based on AASHTOand USCS
– Mention the liquid limit, plastic limit, and predominant mineral
References