Objective for determination of the relation between the water content and the dry density of soils using light compaction. In this video we will see how to do the proctor compaction test as indian standard for heavy compaction. The nebraska department of roads specifies the standard proctor test astm d 698aashto t 99 as the method of estimating maximum dry density and optimum moisture content for. Apparatus metal mould volume cm3 balance capacity 10 kg, least count 1g oven 105 to 1100c sieve 19 mm metal rammer weight 4. This test method determines the relationship between the moisture content and the density of soils compacted in a mold. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby. The experimental procedure, the description of the apparatus devised and. The nuclear density is compared to the maximum dry density to calculate the percent density and the moisture content from the nuclear gauge is compared to. Compaction characteristics of soil astm d1557 proctor compaction test prepared by. Proctor test astm d155791 the proctor, or modified proctor test, determines the maximum density of a soil needed for a specific job site.
Weigh the proctor mould without base plate and collar. The proctor test is a test that is used in geotechnical engineering to find out the maximum density that can be practically achieved for a soil or similar substance. October 2018 sample extruder a jack, lever frame, or other device for extruding compacted specimens from the mold quickly and with little disturbance. This is the most widely used method for the design of flexible pavement. 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. May 14, 20 objective for determination of the relation between the water content and the dry density of soils using light compaction. After the technician has conducted a field test to determine the actual field density of an embankment layer, a representative sample of soil, approximately 7 pounds, is removed from the area around the test site. As of may 20, 2008 the mndot laboratory manual is only available as an. Im 309 determining standard proctor moisture density relationship of soils. Soils field testing air pressure is forced into the cylinder and forces the water filled balloon out of the cylinder and into the test hole. Standard test methods for laboratory compaction characteristics of soil using.
A typical field testing procedure to determine the load bearing capacity of t. It is similar to the british standard heavy compaction test. Standard proctor test procedure apparatus calculation. Compaction test of soil is also known as proctors test is done to understand. The mndot laboratory manual outlines laboratory test procedures for materials testing. Both the original and modified here the modified proctor compaction test 1946. The standard proctor test astm d698, aashto t99, and the modified. This omc value is with respect to the specific amount of compaction energy applied on the soil. Weights required for the bulk sample will range from about 50lb to 100lb 23kg to 45kg of moist sample, depending on the test method specified. Indian institute of technology gandhinagar department of. Modified proctor aashto t180astm d1557 testing procedures more closely approximate the compaction effort of modern equipment. Thoroughly mix the sample with sufficient water to dampen it with approximate water content. Students are required to arrange for their own proctors and test locations.
Ppt proctor compaction test for maximum dry density. Standard test methods for laboratory compaction characteristics of soil using modi. Jan 27, 2019 standard proctor test procedure four to five representative samples of soils are obtained each about 2. Astm d698 00a standard test methods for laboratory. Evaluation of laboratory compaction procedures for specification of. The proctor compaction test is a laboratory method of experimentally determining the optimal moisture content at which a given soil type will become most dense and achieve its maximum dry density. In all the above cases make at least five determinations and the range of moisture content shall be such that the. Soil that needs to be compacted is placed in a standard mold and compacted fig. Standard test methods for laboratory compaction characteristics of soil using standard effort 12 400 ftlbfft 3600 knmm 1 this standard is issued under the. This can be measured by mainly two methods standard.
The modified proctor test is of great importance and is widely used in the construction of roads, highways, earth fill dams, earth filling, airports, etc. Jun 14, 2014 objective to determine moisture content and dry density relationship using heavy compaction or modified compaction method as per is2720part8. Take a representative sample of air dried soil of about 5 kg soil not susceptible to. Proctor compaction test procedure a representative bulk field sample is obtained for each type of soil material proposed for use in the earthwork operation. For fine soil, 810% of water and for coarse soil, 45% of water is added. Consult the current edition of aashto for procedure in its entirety and equipment specification details. Scope the moisturedensity relationship test is also called the proctor test. In modified proctor test, the mould used is the same as for the standard proctor test having volume c. Soils field testing after each layer trim any soil along the mold walls and distribute on top of compacted layer keep manual hammer perpendicular to base of mold and lift to its maximum. The standard proctor test astm d698 employs 12,400 ftlbsft. A soils optimum moisture content is usually lower when compacted to modified proctor versus standard proc. The proctor compaction test is a laboratory method of experimentally determining the. Cbr test procedure california bearing ratio for road design.
The proctor soil compaction test is performed by measuring the density, or dry unit weight, of the soil being tested at different moisture content points. The proctor compaction test is a test that compacts the soil material at various moisture contents. Summary of method the test consists of the following steps which are explained in the test procedure. Modified proctor test an overview sciencedirect topics.
Jul 26, 2018 in this video we will see how to do the proctor compaction test as indian standard for heavy compaction. This plays a vital part in construction for soils are mainly used. While reading modules, in some cases, there are online selfquizzes to assess your understanding of the content read in the chapters. A modified proctor test is conducted by placing soil in a standard mold and compacted with a standard ram. Compaction of soil process, necessity and theory of compaction. The optimum moisture content omc or optimum water content owc is the moisture content at which the soil attains maximum dry density.
Astm d698 12e2 standard test methods for laboratory. According to proctor, the compaction of a soil mass is dependent on the. The nebraska department of roads specifies the standard proctor test astm d 698aashto t 99 as the method of estimating maximum dry density and optimum moisture content for subgrades and compacted fill sections. Note 1the equipment and procedures are the same as proposed by the u. What is the difference between standard proctor test and. The standard proctor test approximates maximum soil density capable of being produced by early generations of construction equipment. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them. Onepoint proctor if the soil is cohesive in nature, the indot family of curves may be used.
Compaction test proctor test civil engineering notes. Pdf compaction of soil at maximum dry density is required in many engineering projects. Soil compaction is the process in which stress is applied to a soil which causes densification as the voids are filled with solids. The details included in this test method are for use with the standard proctor test. Pressure continues to be applied until water filled balloon completely fills test hole the water volume displaced from cylinder as test. The results obtained by these tests are used with the empirical curves to determine the thickness of pavement and its component layers. Standard test methods for laboratory compaction characteristics of soil using standard effort 12 400 ftlbfft 3 600 knmm 3 active standard astm d698 developed by subcommittee. The sample must be obtained cautiously and the amount.
Metal mould volume cm 3 for 100 mm diameter mould and volume 2250 cm 3 for 150 mm diameter mould as per is. The scope of the standard proctor compaction test is to determine the. In all the above cases make at least five determinations and the range of moisture content shall be such that the optimum moisture content at which the maximum dry density occurs is within that range. Take a representative portion of airdried soil large enough to provide about 5 kg of material passing. Maximum dry density of soil and optimum moisture content test. Proctor compaction test for maximum dry density 1 proctor compaction test for maximum dry density 2 what is compaction. This typically leads to variances between 8% and 11%, as shown above. Soils field testing north dakota department of transportation. However, this procedure is judged to be much more complex and less desirable than the. This test is adapted by bis and is known as heavy compaction test.
The remaining procedure is same as described above for cc mould. Compaction of soil process, necessity and theory of. Determination of water contentdry density relation using light compaction. The modified proctor test, the reduced modified proctor test, the standard proctor test and the reduced standard proctor test are dynamic methods which use different compactive efforts. The proctor mould of ft 3 944 cm is used in astm standards. For fine soil, 810% of water and for coarse soil, 4.
According to proctor, the compaction of a soil mass is dependent on the following four major factors. Proctor soil compaction test procedures, tools and results. It was designated astm test d1557 or modified aashto t180, initially adopted in 1958 the modifed proctor test uses a 10lb hammer in an 18inch drop sleeve. The cbr test is one of the most commonly used methods to evaluate the strength of a sub grade soil, sub base, and base course material for design of thickness for highways and airfield. The determination of maximum dry density and optimum moisture content of the soil is a measure of compaction level of soils. Compaction test of soil is carried out using proctor s test to understand compaction characteristics of different soils with change in moisture content. The proctor compaction test is a laboratory method of experimentally determining the optimal moisture content at which a given soil type will become most dense and achieve its maximum.
Jul 19, 2014 a typical field testing procedure to determine the load bearing capacity of t. Procedure for standard proctor test approximately 5 kg of soil passing through 4. There are two proctor tests that defined by the american association of highway officials and american standard testing material. For the same type of soil, the modified proctor yields a higher maximum dry density and lower optimum moisture content. Standard proctor test procedure four to five representative samples of soils are obtained each about 2. Determination of water content dry density relation using heavy compaction. Take a representative portion of airdried soil large enough to provide about 5 kg of material passing 19mm is sieve for soils not susceptible to crushing during compaction or. With required test data available, p roceed from left to. The california bearing ratio test is penetration test meant for the evaluation of subgrade strength of roads and pavements. This method covers the determination of the relationship between the moisture content and density of soils compacted in a mould of a given size with a 2.
This plays a vital part in construction for soils are mainly used as supports for a lot of infrastructures. Compaction test of soil is carried out using proctors test to understand compaction characteristics of different soils with change in moisture content. After the technician has conducted a field test to determine the actual field density of an. Take a representative ovendried sample, approximately 5 kg in the given pan. In modified proctor test, the soil is compacted in the given mold in five 05 layers with a rammer of 10 lbs 4. This method describes the procedure for determining the relationship. Thoroughly mix the sample with sufficient water to dampen it with approximate water content of 46 %. Test procedure is similar to that of standard proctor test. The sample must be obtained cautiously and the amount must be enough to suffice the requirements of 4 to 5 repetition while filling the molds as well as the containers for the moisture content determination. Apr 04, 2020 the proctor test is a test that is used in geotechnical engineering to find out the maximum density that can be practically achieved for a soil or similar substance.