There are two proctor tests that defined by the american association of highway officials and american standard testing material. The main objective of this study is to evaluate the optimum moisture content value based on computing average moisture content adapted from standard or modified proctor compaction test trials and. Iowa state compaction apparatus for measurement of small soil. Standard proctor test is not sufficient for airways and highways where heavier compaction is required. What is the difference between 95% and 98% proctor compaction. At the same time and for each proctor test, modulus tests are performed to obtain the lab soil modulus. These mechanical soil compactors feature automatic counting of hammer blows and shutoff upon. The proctor compaction test is a laboratory method of experimentally determining the optimal.
Modified proctor test an overview sciencedirect topics. The proctor compaction test is a test that compacts the soil material at various moisture contents. Also, the modified proctor compaction test is designated by astm d1557 and aashto t180d. Soil compaction test equipment proctor soil density. The standard count obtained from the test is recorded and saved for a reference. Standard proctor compactive effort is used more commonly than modified proctor compactive effort. The standard block is included with each gauge and these blocks are not to be interchanged with blocks from other gauges. The standard proctor test astm d698, aashto t99, and the modified. 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. According to proctor, the compaction of a soil mass is dependent on the following four major factors.
The standard proctor compaction test was developed by r. Determining compaction standard modified proctor test all test methods for compaction are similar. Daily most nuclear gauges require a warmup period and standard count. Modified proctor test was alter adopted by aashto and astm. Evaluation of laboratory compaction procedures for specification of. Compaction is measured using an industry standard proctor test. If it is less than 20%, the standard mould of 100mm diameter can be used. D69812e2 standard test methods for laboratory compaction characteristics of soil using standard effort 12 400 ftlbfft3 600 knmm3 density water content particle size. A typical field testing procedure to determine the load bearing capacity of t he prepared groundin this instance several feet of a clay loam fill compacted with a sheeps foot rolling vibrator.
These test methods used to determine the relationship between water content and dry unit weight of soils. D698 00a standard test methods for laboratory compaction characteristics of soil using standard effort 12,400 ftlbfft 3 600 knmm 3, impact compaction using standard effort, density, moisturedensity curves, proctor test, compaction characterist, soil compaction, laboratory tests. Proctor moulds and rammers, bs, soil testing equipment. The procedure and equipment is essentially the same as that used for the standard test except that 5 layers of soil must be used. Equipments for proctors test for compaction of soil. Proctor standard pdf modified proctor compaction test. A higher and more relevant compaction standard was necessary. Standard counts should have been taken in the morning and are good for that entire days use. Standard proctor test 9the soil is mixed with varying amounts of water and then compacted in three equal layers by a hammer figure 2 that deliver 25 blows to each layer. Compaction test of soil is also known as proctors test is done to understand compaction. Cylindrical mold and manual drop hammer typically utilized for standard and. This is important not only for durability, but will save money because less compaction effort is needed to achieve the desired results. The most common is the proctor test, or modified proctor test.
Standard proctor test is also known as light compaction test as per bis. The array of soil testing equipments includes vernier transit theodolite, sokkia auto level, liquid limit device, soil cone penetrometer, speedy moisture meter, sand pouring cylinder, proctor compaction test apparatus and more. Soil is compacted in five layers, each layer being given 55 blows of the 4. Penndot specification changes for materials, equipment. Soil moisturedensity relationship standard and modified proctor tests. When proctor developed his test, it seemed to be adequate. This modified testcommonly referred to as the modified proc tor or modified aasho moisturedensity testis also standardized by both aasho and. Its process is almost same as standard proctor test with little differences which you will know here in details so, lets move on. Excerpts from the standard specifications section 2102 in the reference manual provide. Mechanical soil compactors for standard and modified proctor compaction and preparation of california 216 samples. The soil moisture content and the degree of dry density to which the soil is prepared to be compacted maintain a definite relationship.
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. The uts0665 spring type proctor penetrometer is used for determining the moisturepenetration resistance relation of finegrained soils. Drop weight 10 to 20 feet at close centres makes craters loss fill and sand. Universal proctor cbr automatic compactors the automatic compactor p rovides a fully automatic and uniform compaction of specified. Its process is almost same as standard proctor test with little differences which you will know here in details. The standard proctor test has been widely used and accepted for characterizing soil com patibility for field. They specify the soil to be used and the compactive effort to be exerted in developing the moisture density relationship. Penndot specification changes for materials, equipment, compaction, and testing of embankments and fills. 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. A wide variety of proctor compaction test options are available to you, such as usage, power. Note 1 it is important that the water is mixed thoroughly and adequately with the soil, since inadequate mixing gives rise to variable test results. Objective to determine the required amount of water to be used when compacting the. The details included in this test method are for use with the standard proctor test.
Proctor moulds and rammers, bs, soil testing equipment, controls. Soil compaction is the process in which stress is applied to a soil which causes densification as the voids are filled with solids. Pdf use of proctor compaction testing for deep fill construction. Proctor compaction test civil official all about civil. To ensure functionality, scroll down to chat with a live technician.
D698 07 standard test methods for laboratory compaction characteristics of soil using standard effort 12 400 ftlbfft 3 600 knmm 3, compaction characteristics, density, impact compaction, laboratory tests, moisturedensity curves, proctor test, soil, soil compaction, standard effort. Astm d698 00a standard test methods for laboratory. You will set yourself up as a user of each of these 3 websites. Soil testing equipment soil test equipment, vernier transit. Compaction tests results vary with the input compactive effort, usually measured in foot pounds per cubic foot of soil. In 1958, the modified proctor compaction test was developed as an astm standard. This plays a vital part in construction for soils are mainly used as supports for a lot of infrastructures.
A particular soil needs to have an ideal or optimum amount of moisture to achieve maximum density. For projects where impact rollers are used, the modified proctor test is. What is the difference between 95% and 98% proctor. This blog post will focus on the significance of soil compaction particularly the proctor test, how the test is performed, necessary equipment and helpful tips. Currently, the procedures and equipment details for the standard proctor compaction test is designated by astm d698 and aashto t99. Daily most nuclear gauges require a warmup period and standard. A soils optimum moisture content is usually lower when compacted to modified proctor versus standard proc.
Compaction test proctor test civil engineering notes. Compaction characteristics of nongravel and gravelly soils using. Maximum dry density of soil and optimum moisture content test. The fundamentals of compaction were first time presented by rr. His original test is most commonly referred to as the standard proctor. Compaction characteristics of soil astm d1557 proctor compaction test prepared by. Choose a test site on the compacted layer of soil or soil mixture represented by the one. Standard compaction based on a compactive effort 3with energy input of 596 kjm. What is the difference between standard proctor test and. The line of optimum moisture contents is usually around 85% saturation and the optimum moisture content decreases with increasing compactive effort. The standard proctor test approximates maximum soil density capable of being produced by early generations of construction equipment. Types of soil compaction test in laboratory standard proctor test modified proctor test gyratory compaction test 11.
Most of the soils selected by txdot and tested in this study were uniform fine sands. Compaction of soil process, necessity and theory of. The selection of method is based on project requirements and specifications. 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. Equipment cylindrical mold measuring 105 mm in diameter, 115. Summary of method the test consists of the following steps which are explained in the test procedure. Us army corps of engineers developed modified proctor test which used greater levels of compaction and produced higher densities. Standard method of test for moisturedensity relations of soils using a 2. Im 309 determining standard proctor moisture density relationship of soils.
Modified proctor test is used to determine the compaction of different types of soil and the properties of soil with a change in moisture content and the relationship between dry density and moisture content. Proposed changes revisions involve the following documents. Aug 20, 2019 currently, the procedures and equipment details for the standard proctor compaction test is designated by astm d698 and aashto t99. Pdf use of proctor compaction testing for deep fill. In the proctor test, the soil is compacted in a mold that has a volume of 944 cm3. Blocked ports and security firewalls may inhibit your ability to connect to a proctor. Feb 28, 20 laboratory testing of soil using the standard proctor compaction effort. Note 1 it is important that the water is mixed thoroughly and adequately with the soil, since inadequate mixing gives rise to variable test. Dec 29, 2015 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. Our soil testing equipments includes compact soil test equipments that perform a complete range of static and dynamic tests. Soil density standard vs modified proctor reinforced soil structures routinely specify that all soils be compacted to 95% of the maximum density determined by astm d698 standard proctor density for conformance with the design. Fundamentals of soil compaction intelligent compaction. 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. Use of proctor compaction testing for deep fill construction using impact rollers.
There were larger and heavier compaction equipment, like large vibratory compactors and heavier steelface rollers. Compaction test of soil is carried out using proctors test to understand compaction characteristics of different soils with change in moisture content. Used proctor test for determining target moisture and. The standard and modified proctor test procedures are straightforward. Compaction of soil is the optimal moisture content at which a given soil type becomes most dense and achieve its. Compaction test of soil is carried out using proctor s test to understand compaction characteristics of different soils with change in moisture content. However, standard proctor density criteria is typically utilized in the eastern us where.
Astm d698 12e2 standard test methods for laboratory. Construction planning, equipment, chapter geotechnical. For example, specifications often require compaction to be 95 percent of standard proctor. The standard also specifies heights, volumes and tolerances for the moulds, as well as diameter, sector radious and segment arc for the rammerhammer. Modified proctor or standard proctor tests are performed and the optimum moisture content as well as the maximum dry density is determined from the compaction curves. Test your equipment before you start your exam with proctoru. The most recent revision tothis technical guide lg004 other than minor editorial changes is.
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