This focused attention on the importance of subgrade compaction, leading to the modified proctor compaction test in 1946. 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. Jul 26, 2018 in this video we will see how to do the proctor compaction test as indian standard for heavy compaction. Tex241f, superpave gyratory compacting of test specimens of bituminous mixtures section 2 apparatus texas department of transportation 4 txdot 112005 the platen side of each mold bottom must be flat and parallel to its face. Proctor compaction test apparatus at rs 3000 piece.
A method for controlling compaction of granular materials. The following article will guide you about how to conduct is compaction test for soil. A soils optimum moisture content is usually lower when compacted to modified proctor versus standard proc. The optimum compaction level of bentonite is achieved with a water content of between 20 and 25% according to the proctor compaction test. A study of effective soil compaction control of granular soils. Mould has detachable collar and base plate assembly.
The relationship between soil moisture content and compacted dry density is very useful for deciding construction specifications and quality control of compacted earth fill. The mean moisture percentages of the wetted soils of sites 1,2 and 3 were 14,8%, 15,4% and 16,1 % respectively. Proctor showing that for a given compaction effort, the density of soil depends on the type of soil and moisture content. Guidance for soil construction standards and testing. However, this procedure is judged to be much more complex and less desirable than the astm d 1557 procedure. Table 1, table 2 summarize the range of the gradation of the lateritic soils and crushed rocks. The standard proctor test astm d698, aashto t99, and the modified. Proctor soil compaction test procedures, tools and results. Laboratory compaction curves were developed for nine soils with clay contents ranging from 232 to 385 g kg 1 using the standard proctor test procedure and the proposed procedure, which uses a 54. Amount of compaction testing odot compaction testing 203, 205 one test per 2,000 cy 204, 206 one test per 3,000 sy 304, 411 three tests per 5,000 sy one per lift 503 one test every 5th lift 603 one test every 5th lift or one test every 50 lf 840 sgb one test per 300 lf for every lift. In order to overcome the time and effort of carrying out dynamic compaction test, a laboratory procedure is devised to determine the omc and mdd values by using static compaction effort. According to proctor, the compaction of a soil mass is dependent on the following four major factors. According to compaction theory, when samples of a soil are compacted at different water contents using the same compactive. Compaction test of soil is also additionally called as proctors test.
The compaction factor test is used for concrete which have low workability for which slump test is not suitable. Standard proctor test or proctor compaction test was the original test devised by an american engineer ralph r. Compaction of soil process, necessity and theory of compaction. Modified proctor aashto t180astm d1557 testing procedures more closely approximate the compaction effort of. Compaction of soil is the optimal moisture content at which a given soil type becomes most dense and achieve its maximum dry density by removal of air voids.
Standard compaction test and modified compaction test. It is normally undertaken to understand compaction properties of varied soils with alteration in moisture proportion. The compaction and cbr test results of the finegrained soils, lateritic soils and crushed rocks were collated from the bureau of rural road 6, the department of rural roads, thailand. Please indicate if feed distribution is 100% passing or retained, 90% passing or retained, etc. We know that the conditions of site and that of the laboratory are different altogether. Compaction is the process by which the bulk density of an aggregate of. All ram and base plate faces the sides presented to the specimen must be ground.
The dry unit weight for each roller pass was measured by the nuclear method. Compaction tests results vary with the input compactive effort, usually measured in foot pounds per cubic foot of soil. Compaction factor test for concrete workability method and. The specification for reinstatement of openings in the highway clearly provide statutory requirements for individual compacted lift thickness and equipment application for. The proctor compaction test is a test that compacts the soil material at various moisture contents. Alternative compaction recommendations are also presented based on txdots tx 1e compaction procedure. Rdc is suited to deep fill applications because of the ability to compact. The test results of 61 finegrained soils, 68 lateritic soils and 64 crushed rocks were analyzed in this study. Recommended compaction requirements for placement 1874s. The mean moisture percentages of the wetted soils of sites 1,2 and 3 were 14,8%, 15,4% and 16,1 % respectively these values did not differ significantly. Modified proctor aashto t180astm d1557 testing procedures more closely approximate the compaction effort of modern equipment. Finally, the field compaction procedure is suggested based on the analysis of the test data. Soil compaction test equipment proctor soil density. Bentonite in its natural state has a water content of approximately 8%, therefore, it is necessary to introduce additional water in order to obtain an ideal sprayed material consistency.
It is also desirable to know the optimum soil conditions for compacting a given soil. The objective of the test is used to determine the compaction characteristics of a soil. Proctor soil compaction test natural building blog. To provide the increased compactive effort energy supplied 2072 jm 3 a heavier hammer and a greater drop height for the hammer are used. Laboratory compaction of soils using a small mold procedure. Astm d698 12e2 standard test methods for laboratory. Failure to comply with any of the specified methods could result in possible degradation of reinstatement and surrounding area, along with possible legal action where noncompliance is. Key words compaction, soils, embankment, density 18.
What is the difference between standard proctor test and. Compaction, granular soils, sands, gravels, laboratory compaction device, vibratory hammer, field measurements of compaction, soil density, soil water content, tdr measurements 18. A wide variety of proctor compaction test options are available to you, such as auto testing machine. This document is available to the public through the national technical information service, springfield, va 22161 19. There are many types of soil compaction tests which are performed on soil.
If the tx 1e compaction procedure with neoprene pad and special hammer is used to specify and control compaction, it is recommended that the soil be compacted to 92 percent of the maximum. Proctor compaction test article about proctor compaction. The ability to compact a soil depends on the water content of the soil. Diagnosing soil compaction using a penetrometer soil. Astm d1557 07 standard test methods for laboratory. Proctor compaction test apparatus is a fundamental requirement for the construction of earth fill for dams, reservoirs, canal embankments, highways, railways and runways. This compaction is a comparison of the laboratory compaction proctor to the field density and recorded as a percentage. This value varies, depending on the type of test selected.
Standard proctor test procedure apparatus calculation. Soil compaction is a serious concern for farmers in pennsylvania. Compaction test proctor test civil engineering notes. Rolling dynamic compaction rdc is a generic term associated with densifying ground using noncircular impact rollers.
In this video we will see how to do the proctor compaction test as indian standard for heavy compaction. Compaction of soil is an important process, as it helps it of achieve certain physical properties necessary for its proper behaviour under loading. The field compaction data from a road construction project in pathumthani province, thailand were taken to study the development in unit weight with number of roller passes. Compaction behavior of finegrained soils, lateritic soils.
Water acts as a lubricant between the soil grains however as its content increases the water may occupy the entire pores and since its relatively incompressible in comparison to the air it may. Soil compaction can easily reduce crop yields by 10 percent, and can lead to water and soil quality degradation due to increased runoff and soil structure destruction. Compaction test of soil is carried out using proctors test to understand compaction characteristics of different soils with change in moisture content. An astm designation number identifies a unique version of an astm standard. The line of optimum moisture contents is usually around 85% saturation and the optimum moisture content decreases with increasing compactive effort. Whether testing in the field or lab, gilson has the soil compaction test equipment you need to perform proctor compaction tests, determining soil moisturedensity relationship and for testing relative compaction and relative density of granular soils. In modified compaction test the procedure and equipment is essentially the same as that used for the standard test except that 5 layers of soil must be used. Lab report proctor testcompaction test introduction for. The method employed is through the veidcp variable energy input dynamic cone penetrometer or panda 2 method.
You can also choose from electronic, hydraulic proctor compaction test there are 101. The standard proctor compaction test is used to determine the optimum water content during compaction which gives the greatest soil density. In other words, the density is a comparison of the weight of one cubic foot of material in the field. Compaction test light weightstandard proctor compaction is 2720part vii1980 reaffirmed2011 theory. Media in category proctor compaction test the following 6 files are in this category, out of 6 total. Tex241f, superpave gyratory compacting of test specimens of. Pdf use of proctor compaction testing for deep fill. The proctor compaction test is a laboratory method of experimentally determining the optimal moisture content at which a given soil type.
For each penetrometer the soil compaction of the dry and wet soils of site 1 were greater than the soil compaction of the dry and wet soils of site 2 and site 3. Equipment cylindrical mold measuring 105 mm in diameter, 115. Indian institute of technology gandhinagar department of. Soil compaction testing otherwise known as density tests are performed in order to determine the soil compaction level. Compaction factor apparatus consists of trowels, hand scoop 15. Evaluation of laboratory compaction procedures for. To assess the workability of concrete using compaction factor test apparatus compaction factor apparatus trowels hand scoop 15. The test is named in honor of ralph roscoe proctor, who in 1933 showed that the dry density of a soil for a given compactive effort depends on the amount of water the soil contains during soil. But it has a major limitation that this test is not suitable for saturated and soft soils. Sampling concrete mix m15 is blended according to the specified mix design in the laboratory. Jun 05, 2012 3 nuclear density test soil test duration. It is a cylindrical mold of 10 cm internal diameter and 12. For assessment of the compaction properties of a soil sample by proctors test theory compaction refers to the procedure of densification of soil by plummeting air voids. In geotechnical engineering, soil compactionis the process in which a stress applied to a soilcauses densification as air is displaced from the pores between the soil grains.
There are two proctor tests that defined by the american association of highway officials and american standard testing material. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. One of the most common test to determine the field density of soil is the sandcone method. Apr, 2016 proctor compaction test for laboratory this test is used to determine the relationship between water content and dry unit weight of soils. Compaction of soil process, necessity and theory of. Procedure take a representative sample of air dried soil of about 5 kg soil not susceptible to crushing during compaction or 3 kg from 15 kg sample soil susceptible to crushing during compaction passing through 19mm is sieve and mix thoroughly with a.
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