The line of optimum moisture contents is usually around 85% saturation and the optimum moisture content decreases with increasing compactive effort. During the calculations, please report the density to the nearest 0. According to compaction theory, when samples of a soil are compacted at different water contents using the same compactive. Based on the results of these tests as well as additional tests to. Evaluation of laboratory compaction procedures for specification of.
Title and subtitle evaluation of laboratory compaction procedures for specification of densities for compacting fine sands 5. Proctor, who in 1933 showed that the dry density of a soil for a given comp active effort depends on the amount of water the soil contains. Nd d 2167, density and unit weight of soil in place by the rubber balloon method, or nd t 191, density of soil inplace by the sand cone method 1 test per 1,500 feet of compacted roadway per 12 lift. This form is the same as 1793 a except that it also has a section to calculate random testing locations and offsets. In the other hand, soil compaction test is carried out in the laboratory in determining the ideal volume of water to be poured while compaction the soil on site so that the required. Field determination of maximum dry density and optimum. Table 53 rfp content analysis and dot survey results regarding db rfp. Point proctor t 265 laboratory determination of moisture content of soils d2167densityofsoilin. Laboratory tests on undisturbed samples procured from the test fills. When water is added to the soil during compaction, it acts as a softening agent. Compaction test of soil astmd698 linkedin slideshare.
Standard test methods for laboratory compaction characteristics of soil using modi. The degree of compaction of a soil is measured in terms of its dry unit weight. Im 216 guidelines for determining the acceptability of test results. Compaction test of soil is carried out using proctors test to understand compaction characteristics of different soils with change in moisture content. Compaction tests results vary with the input compactive effort, usually measured in footpounds per cubic foot of soil. Compaction test of soil soil mechanics standardization. Test frequency nd t 180 or nd t 99, moisturedensity relations of soils multipoint 1 compaction curve for each change in soil.
Proctor soil compaction test procedures, tools and results. Compaction tests results vary with the input compactive effort, usually measured in foot pounds per cubic foot of soil. If more than one crop is being grown, there will be separate reports for each crop type. Preamble compaction is the process of densification of soil by reducing air voids by mechanical energy. If a heavier degree of compaction corresponding to the bs heavy compaction test section 6. This form is an option for use inlieu of the standard 1793 a form. Nuclear compaction test report for acp with randoms. Optimizing the value of soil compaction testing quality assurance. Evaluation of laboratory compaction procedures for.
A typical compaction curve obtained from the british standard light compaction test section 6. Proctor test compaction test introduction for earthwork construction it is important to compact soils to a dense state so that the soils will attain satisfactory engineering properties. This is a continuation of the previous article i posted how to do a compaction test or insitu density test, about the calculation of the compaction test report. It is also desirable to know the optimum soil conditions for compacting a given soil. Table 46b multiple qcqa compaction test devices research projects.
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