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- The common soil test for road construction includes classification of soil, particle size distribution, moisture content determination, specific gravity, liquid limit, and plastic limit tests. Moisture content, particle size, and specific gravity tests on soils are used for the calculation of soil properties such as degree of saturation.
theconstructor.org/transportation/types-soil-tests-for-road-construction/11502/Types of Soil Tests for Road Construction – theconstructor.org
For road construction works, the properties of soil at subgrade level are required. The common soil test for road construction includes classification of soil, particle size distribution, moisture content determination, specific gravity, liquid limit, and plastic limit tests.
- Particle Size Distribution
Take the soil fraction retained on 4.75mm IS sieve for the...
- Soil Tests Required for Deep Foundations
Result of the cone penetration test for the same soil show...
- Flexible Pavement Design by California Bearing Ratio (Cbr) Method
CBR value of soil subgrade b. CBR value of sub base course...
- In-situ Moisture Content
When we added water to it, the water forms a thin film...
- Soil Water Movement
Fig.: Soil Movement due to Vibration Caused by Earthquake....
- Particle Size Distribution
- a. Moisture Content Test. The moisture content of the soil is the amount of water it contains and is expressed as the percentage of dry mass. The test for determining the moisture content of the soil is vital for assessing the existing natural state of the soil.
- b. Specific Gravity Test By Pycnometer Method. The specific gravity of soil may be defined as the ratio of the mass of solids to the mass of an equivalent volume of water at 4ºC.
- c. Particle Size Distribution Test. The particle size distribution of soil may be defined as the proportion of the dry mass of soil distributed over specified particle-size ranges, i.e., gradation of soil.
- d. Proctor Test. The Proctor test is a type of compaction test carried out to determine the compaction properties of soil. In actuality, this test is used for determining the mass of dry soil per cubic meter when the soil is compacted over a range of moisture contents providing the maximum dry density at the optimum moisture content.
- Definition
- Importance
- Apparatus Required
- Procedure to Calculate Moisture Content in Soil by Oven Drying Method
- Precaution
- Liquid Limit
- Observation Table
- Theory
- Calculation
Moisture content is defined as the ratio of the weight of water to the dry weight of solid particle in a given soil mass. It is expressed in terms of percentage.
The engineering behaviour of soil is largely influenced by the presence of water and its quantity present in the voids of the soil. This test is one of very important soil tests for construction. Therefore, it is necessary to determine the quantity of water present in the soil deposit at a given location.
CanWeighing Balance (with 0.01 accuracy)Thermostatically controlled ovenStep 1: First of all, the soil sample is collected from the site. Step 2: Then, the mass of empty can is recorded (say M1). Step 3: Then, the mass of moist soil and can is recorded (say M2). Step 4: Now, the can containing moist soil is kept in the oven for 24 hours. Then the mass of dry soil with can is recorded (say M3). Step 5: Moisture content ...
The temperature of the oven should be maintained at 110ºC ± 5ºC. But if the soil sample contains a significant amount of gypsum or organic material, the temperature of the oven should be between 60...While putting the can in and taking the can out of the oven special care should be given otherwise, you may burn your hands.The liquid limit of a soil is the minimum water content at which the soil is still in liquid state but has a small setting strength against flowing which can be measure by standard procedure.
Now to analyse and interpret the results for the liquid limit test, a graph is plotted between the number of blows in X-axis and water content in Y-axis on a semi-log graph making use of reading recorded on various tests. The water content corresponding to 25 number of blows is the liquid limit of the soil. In this way we can calculate liquid limit...
The test procedure consists of two parts: 1. Preparing test specimen The test specimen can be prepared by either static compaction or dynamic compaction. The specimen prepared from the dynamic compaction method can be prepared either by light compaction or heavy compaction. In light compaction, the specimen is prepared by filling it in three layers...
The volume of soil, Vs= A * Hs Where A= area of soil solid Hs= thickness of soil solid Precaution 1. The specimen used should be free from voids and over-sized particles. 2. The load should be applied concentrically to the specimen. 3. The inaccuracy that may occur in dial gauge reading should be avoided. Among all types of soil tests for construct...
The common soil test for road construction includes classification of soil, particle size distribution, moisture content determination, specific gravity, liquid limit and plastic limit tests. Moisture content, particle size and specific gravity tests on soils are used for the calculation of soil properties such as degree of saturation.
Nov 15, 2023 · Soil testing significance, methodologies, and real-world applications of crucial soil tests, ensuring the stability and longevity of road infrastructure. From in-situ moisture content to cutting-edge trends, explore the world beneath our roads and pave the way for informed construction decisions.
- Hellen White
Jan 25, 2019 · The CBR test is used for the evaluation of subgrade strength of roads and pavements. The CBR value obtained by this test is used with the empirical curves to determine the thickness of pavement and its component layers. This is the most widely used method for the design of flexible pavement. Read Also. Origin and Classification of Aggregates.
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Jun 9, 2020 · The soil tests include laboratory tests and in-situ tests. In addition to the test on index properties of soil. Refer to article on Types of Soil Tests for Building Construction.
