We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Nobody downloaded yet

Determination of the California Bearing Ratio CBR of an Engineering Soil sample - Lab Report Example

Comments (0) Cite this document
This test "Determination of the California Bearing Ratio CBR of an Engineering Soil sample" is done mainly to evaluate the mechanical strength and load-bearing capacity of the soil samples. Concluding with the fact that the empirical relations have been developed…
Download full paper
Determination of the California Bearing Ratio CBR of an Engineering Soil sample
Read TextPreview

Extract of sample
Determination of the California Bearing Ratio CBR of an Engineering Soil sample

Download file to see previous pages... This value serves as a recommendation for the usage of the engineering soil in subgrades and base courses in pavements. The CBR value is a Rating or percentage which is calculated by comparing the measured pressure with the standard pressure. Then compared with the recommendation given by different engineering practicing bodies and authorities. The test is carried according to BS 1377: Part 4: 1990.
As the procedure is already discussed in detail in the Laboratory Manual and the BSI Standard. Whereas the brief outline is that the first step is to prepare the sample to be tested, then the soil sample is compacted using the standard method. Then the sample is placed in the compression machine and after applying the seating load, the test is initiated and reading is taken for every 0.25 mm interval. Lastly the value of 2.5 mm and 5.0 mm penetration is recorded, and finally, the CBR value is calculated.
But the results our test show that the curve for the bottom is above the curve of the standard this is not correct. Hence there is some source of error. These errors can be due to any reason; this could be due to the faulty apparatus, and there might be a permanent error in the dial gauges. There might be some initial reading that could have been considered and not eliminated later. There is a large error seen in the readings of the bottom of the CBR test, the result shows that the CBR value is more than 100% that is not possible. So these reading are not considered and discarded. Therefore the CBR value of 5% is found as an appropriate value.
Then there are certain considerations to be taken while the experiment to have accurate readings. Firstly the face of the plunger must be leveled onto the sample face and no kern should be there. Then the surcharge plate must also be placed which will restrict from the heaving of the soil. ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Determination of the California Bearing Ratio CBR of an Engineering Lab Report”, n.d.)
Retrieved from https://studentshare.org/engineering-and-construction/1586082-see-the-attachment
(Determination of the California Bearing Ratio CBR of an Engineering Lab Report)
“Determination of the California Bearing Ratio CBR of an Engineering Lab Report”, n.d. https://studentshare.org/engineering-and-construction/1586082-see-the-attachment.
  • Cited: 0 times
Comments (0)
Click to create a comment
Determination of the Explosive HMX in Soil
It uses test reagents, which react with the compounds forming chemicals that range from pink to reddish in color, Alef & Nannipieri (1995). This procedure in conjunction with technics such as HPLC, GC/MS and other analytical methods that provide specific quantitative and qualitative analysis for site remediation purposes.
4 Pages(1000 words)Coursework
Soil bioremedation - potential role for genetic engineering
In fact, current studies seem to suggest that the extent of the areas being contaminated has been increasing along with the increase in mining activities, liquefaction residues from sewages, fertilizer use, and other anthropogenic activities related to industrialization (Costa, and Jesus-Rydin, 2001; Epochtimes, 2011; Yaylahi-Abanuz, 2011).
12 Pages(3000 words)Literature review
Determination of the liquid limit, plastic limit and plasticity index of a cohesive soil
1 2 3 4 m1 Mass of container (g) 14.249 16.300 15.845 16.442 m2 m1 + moist soil (g) 25.105 28.788 25.962 28.066 m3 m2 + dry soil (g) 20.894 23.811 21.811 23.262 w (%) 63.37% 66.26% 69.58% 70.44% The figure above shows a computerized plot of moisture content (%) versus penetration (mm.) rendered using Microsoft Excel.
2 Pages(500 words)Lab Report
There are many rhetorical modes, and each mode has certain reasons to be used in a composition, and hence, produces a certain affect due to which the writer chooses to use that particular mode. It is also common for writers to use a variety of modes, instead of just one, to have different effects at different instances in the book, depending upon the situation, the points under discussion, and the desired effect that the writer wishes to instill in his readers.
2 Pages(500 words)Essay
The quick ratio is similar to the current ratio, but is a more conservative measure of a company's liquidity. It considers only most liquid assets (it does not include inventory since inventory is not easily liquidated). The formula is: [(current assets) - (inventory value)] / (current liabilities).
2 Pages(500 words)Essay
Minority Groups Self Determination In California
1. The African American Experience. American history is wrought with accounts of the mistreatment and discrimination of Blacks by their White counterparts. In response to the unequal treatment, and with the advent of the Civil Rights Movement, Black Americans in California developed the idea of self-determination.
4 Pages(1000 words)Essay
Bearing Failure
An essential component of the generators is the radiator that cools the circulating water required for maintaining engine temperatures. The radiator is of the Fin-Fan type with the water moving through the grid of horizontal finned tubes and air being blown over them by a large fan mounted below them.
6 Pages(1500 words)Essay
Bearing Housing
The lubrication of the bearings is essential; therefore the bearing housings are filled with lubrication oil. The mechanism of the lubrication system varies from system to system. The common lubrication system includes pressure-filled oil system and forced-feed lubrication.
3 Pages(750 words)Essay
Construction of pavements is done by constructing a number of layers over each other. During the design process. It is essential to ensure that none of the layers gets stressed under application of load. The design of the pavement should
8 Pages(2000 words)Lab Report
Soil mechanics
Basing on the information from Geo-environmental surveys Ltd that the site entirely comprised of silt clay that had a unit weight of 25kN/m3,two tri-axial type of tests that included
5 Pages(1250 words)Lab Report
Let us find you another Lab Report on topic Determination of the California Bearing Ratio CBR of an Engineering Soil sample for FREE!
Contact us:
Contact Us Now
FREE Mobile Apps:
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us