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Atterberg Limits Liquid Limit & Plastic Limit of Soils Topic N
Atterberg Limits Liquid Limit (LL) Plastic Limit (PL) Shrinkage Limit (SL) Moisture contents Used for classification, Comparisons, identification. Topic N
Figure 1: Soil States Plasticity Index SolidSemi-SolidPlastic Liquid Shrinkage Limit Plastic Limit Liquid Limit Moisture Content LowHigh
Plasticity Index (PI) Numerical difference between LL and PL PI = LL - PL Range of water content Figure 1 Topic N
Liquid Limit Test (Apparatus) Porcelain mixing dish Spatula Grooving tool Number 40 sieve Figure 2 & Table 1 Topic N
Figure 2: Liquid Limit Device Topic N
Table 1: Measurements (LL) Topic N
Adjustment of Device (LL) Cup drops freely when crank is turned? Measure cup drop – 1.00 cm Topic N
Test Procedures (LL) Grind grams of dried soil Sieve soil Mix in distilled water Place soil on device Make groove in soil (Figure 3) Record number of drops Scrape soil Topic N
Figure 3: Liquid Limit Test Topic N
Flow Curve (LL) Logarithm of the number of drops and water content Straight line Select point with 25 drops= LL Figure 4 Topic N
Figure 4: Flow Curve (LL) Topic N Log of number of drops LLWater Content
Plastic Limit Test (Apparatus) Hard flat surface Porcelain mixing dish Distilled water Number 40 sieve 1/8 inch welding rod Balance Drying oven Topic N
Test Procedure (PL) Grind grams Sieve soil Mix distilled water Roll 10 grams out into a coil Cut into 6-8 pieces Knead soil Topic N
Calculation (PL) Average Water content from 3 trials. Topic N
Non-Plastic When LL or PL tests cannot be performed – Non-Plastic (NP) PL=negative – NP Topic N
Figure 5: Data Sheet Topic N
GEOTECHNICAL PROPERTIES (CE1203) Soil Classification Ms Ikmalzatul.
ENV-2E1Y: Fluvial Geomorphology: Slope Stability and Geotechnics Landslide Hazards River Bank Stability N.K. Tovey Landslide on Main Highway at.
Using Metric Tools. 1. Ruler The ruler above has an English side that uses inches and a metric side that uses centimeters. We will only use the metric.
Measuring Tools Liquid Measuring Cup – Made of glass or plastic. Extra space at the top allows you to carry without spilling. Has a spout for easy pouring.
Soil Classification Sources: Soil Mechanics – Laboratory Manual,B.M. DAS (Chapters 9)
LOGO D ESIGN AND CONSTRUCTION OF SOIL LIQUID LIMIT APPARATUS APPLIED WITH FLUID DYNAMICS PRINCIPLES AND SHEAR STRENGTH MODEL.
Exponential Decay M & M’s Math Lab. The Objective: Students will model exponential decay in an experiment involving M & M’s. Materials Bag of M&M’s candies.
Introduction to Clay Experiencing Clay Chapter 1-3.
IMPACT ~ Breach Physical Modelling Review of Modelling Work Undertaken So Far...
Warm –up: What is the density of the block? CUBE DESCRIPTION Material Plastic Length of each side 2 cm Mass 24 grams Weight 6.6 N.
What is Density? DENSITY is a physical property of matter, as each element and compound has a unique density associated with it. Density defined in a qualitative.
Data Collecting, Organizing & Analyzing. VARIABLES & DATA TABLES.
What is Matter? Properties of Matter. Matter is… everything that has mass and volume made up of atoms (tiny particles)
Looks like a small glass pitcher Metal or plastic.
Lab Equipment. Balance Digital Digital Triple beam Triple beam Measures mass Measures mass Unit is a gram Unit is a gram.
The Metric System The scientific system of measurement The International System of Units (SI) Based on the number 10 and multiples of 10.
RIP~ing – Scientific Inquiry Grass 3 rd Grade – Hokulani Maki Kobori (B-20) Chad Dela Cruz (B-21)
John Walton Fall, Grows over shallow water table areas High amount of evapotranspiration Water balance component Q out of reach = Q into.
Using a Recipe and Types of Recipes Culinary Basics LSHS.
Title: Measuring Volume Activity 8. Read A-32 Problem: How do you measure volume of a solid object? Hypothesis/Initial Thoughts:
1 Subsurface exploration and sampling Soil classification References: 1. Holtz, Robert, D., Kovacs, Williams, D. An Introduction.
Welcome A presentation of the Washington State School for the Blind A presentation of the Washington State School for the Blind.
Part 1. A way of learning about the natural world.
Scientific Method. Steps in the Scientific Method Observation Observation Hypothesis Hypothesis Experiment Experiment Data Collection Data Collection.
SIVA 1 Introduction to Soil Mechanics Geotechnical Engineering-II Dr. Attaullah Shah ground.
Understanding Recipes What is a recipe? Set of directions for using ingredients, procedures and cooking instructions for a certain dish instructions must.
Measuring Techniques How to Measure Accurately Mrs. Woodward- Bingham HS.
Mass is the amount of matter (stuff) in an object. What is mass? The base unit of mass in the metric system is the gram (g).
Lab Equipment Science equipment Name: Petri Dish Job: shallow dish used for cultures.
Scientific Method. Steps in the Scientific Method State the Problem State the Problem Collect Information Collect Information Form Hypothesis Form Hypothesis.
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