Pdf use of proctor compaction testing for deep fill construction. Sample calculations estimating the cost savings from compacting to modified versus standard proctor specifications were included as was a chart showing the compaction standards currently used by state transportation agencies. Compaction characteristics of soil astm d1557 proctor compaction test prepared by. Standard and modified proctor compaction methods astm d. Standard proctor test or proctor compaction test was the original test devised by. Standard proctor test an overview sciencedirect topics.
According to proctor, the compaction of a soil mass is dependent on the following four major factors. Proctor standard pdf modified proctor compaction test. Astm d1557 12e1 standard test methods for laboratory. In order to evaluate the degree of compaction achieved at site, the field density carried out by field density test sand replacement method or any other method, is compared with the laboratory density determined by standard proctor test or modified proctor test standard proctor test or proctor compaction test was the original test devised by an american. 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. 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. Comparison of standard and modified proctor test results for site a. Since the proctory dry density pdd is strongly influenced by the compactive effort applied. Modified proctor test an overview sciencedirect topics.
At the same time and for each proctor test, modulus tests are performed to obtain the lab soil modulus. His original test is most commonly referred to as the standard proctor. The standard proctor test astm d698, aashto t99, and the modified. A soils optimum moisture content is usually lower when compacted to modified proctor versus standard proc. Standard test methods for laboratory compaction characteristics of soil using modi. Proctor compaction testing unl digital commons university of. This typically leads to variances between 8% and 11%, as shown above. Research has been done showing the relationship between standard and modified proctor densi ty testing for different soils types as indicated. Proctor soil compaction test procedures, tools and results.
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. Standard and modified proctor compaction methods astm d1557. October 15, 2018 introduction it is known that optimum moisture content w% is one of the most important factors for obtaining a soils maximum dry density which is required to maximize its strength. The proctor compaction test is a test that compacts the soil material at various moisture contents. Compaction is the process of increasing the bulk density of a soil or aggregate by. This method covers the determination of the relationship between the moisture content and density of soils compacted in a mould of a given. Modified proctor density structural engineering general. Compaction test proctor test civil engineering notes. It is an instantaneous process and always takes place in. Astm d1557 00 standard test methods for laboratory.
Proctor compaction test for maximum dry density what is compaction. Use of proctor compaction testing for deep fill construction using impact rollers. Soil that needs to be compacted is placed in a standard mold and compacted fig. D1557 00 standard test methods for laboratory compaction characteristics of soil using modified effort 56,000 ftlbfft 3 2,700 knmm 3, compaction characterist, density, impact compaction using modified effort, laboratory tests, modified proctor test, moisturedensity curves, soil compaction. Major difference i saw in both test is that modified proctor test is more precise compared to std. The standard proctor test astm d698 employs 12,400 ftlbsft3 of soil, while the modified proctor astm. The standard proctor test astm d698 employs 12,400 ftlbsft. Summary of method the test consists of the following steps which are explained in the test procedure. Created as part of tufts universitys intro to geotechnical engineering course, a. Jan 27, 2019 in order to evaluate the degree of compaction achieved at site, the field density carried out by field density test sand replacement method or any other method, is compared with the laboratory density determined by standard proctor test or modified proctor test. Standard and modified proctor tests university of toledo a standard proctor astm d 698 free fall distance of 12. His original test is most commonly referred to as the standard proctor compaction test. Aug 23, 2018 proctor compaction test, soil proctor test full procedure, mdd omc test, standard proctor test, modified proctor hi friends, in this video we are showing full procedure of proctor test specially. In the standard compaction test, the maximum dry density is achieved on greater moisture content as compared to in modified proctor test and vice versa.
For determination of the relation between the water content and the dry density of soils using light compaction. Its process is almost same as standard proctor test with little differences which you will know here in details so, lets move on. 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. Standard proctor test is not sufficient for airways and highways where heavier compaction is required. To obtain the graphical relationship of the dry density to moisture content in the form of. This plays a vital part in construction for soils are mainly used as supports for a lot of infrastructures. There were larger and heavier compaction equipment, like large vibratory compactors and heavier steelface rollers. Standard proctor compaction test astm d698 company name. Equipment cylindrical mold measuring 105 mm in diameter, 115. D155712e1 standard test methods for laboratory compaction characteristics of soil using modified effort 56,000 ftlbfft3 2,700 knmm3 density water content compaction particle size.
Test methods permit one or two litre moulds for compaction. Proctor went on to teach at the university of arkansas. Indian institute of technology gandhinagar department of. Proctor mould with a detachable collar assembly and base plate. Us army corps of engineers developed modified proctor test which used greater levels of compaction and produced higher densities. Proctor compaction test civil official all about civil. Modified proctor test was alter adopted by aashto and astm. Ppt proctor compaction test for maximum dry density. Objective to determine the required amount of water to be used when compacting the. A higher and more relevant compaction standard was necessary. There are two proctor tests that defined by the american association of highway officials and american standard testing material. Its process is almost same as standard proctor test with little differences which you will know here in details. A soils optimum moisture content is usually lower when compacted to modified proctor versus standard.
What is the difference between standard proctor test and modified. Compaction testlight weightstandard proctor compaction is 2720part vii1980 reaffirmed2011 theory. The most recent revision tothis technical guide lg004 other than minor editorial changes is. Compaction test of soil is carried out using proctors test to understand compaction characteristics of different soils with change in moisture content. These laboratory tests generally consist of compacting soil at known moisture content into a cylindrical mold of standard dimensions using a compactive effort of controlled magnitude. Pdf use of proctor compaction testing for deep fill. The standard proctor test, which meets the requirements of astm d698 method a or aashto t99, is performed in a cubicfoot cylindrical mold using three layers. The selection of method is based on project requirements and specifications. Therefore, the modified proctor test, which imparts four and a half times more energy into the compactive effort than the standard proctor test, was developed. The modified proctor uses a 10 lb rammer falling 18, also in a standard mold.
Also, the modified proctor compaction test is designated by astm d1557 and aashto t180d. 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. In order to evaluate the degree of compaction achieved at site, the field density carried out by field density test sand replacement method or any other method, is compared with the laboratory density determined by standard proctor test or modified proctor test standard proctor test or proctor compaction test was the original test. The modified proctor is used today concurrently with the standard proctor.
Jun 14, 2014 objective to determine moisture content and dry density relationship using heavy compaction or modified compaction method as per is2720part8. In 1958, the modified proctor compaction test was developed as an astm standard. Soil density standard vs modified proctor keystone retaining walls. Get a copy of each standard astm d698 for standard proctor and astm d1557 for modified proctor and read it.
Soil moisturedensity relationship standard and modified proctor tests. The details included in this test method are for use with the standard proctor test. The selection of either standard or modified compaction depends on the specification and generally standard compaction is more commonly used. The fundamentals of compaction were first time presented by rr. Compaction test light weight standard proctor compaction is 2720part vii1980 reaffirmed2011 theory. Standard proctor test, proctor compaction test, calculation. What is the difference between standard proctor test and. What is the difference in the maximum dry density achieved in standard and modified proctor test. This paper discusses performance based specifications and the applicability of both the standard and modified proctor compaction tests to. Its process is almost same as standard proctor test.
Laboratory compaction characteristics of soil using. However, standard proctor density criteria is typically utilized in the eastern us where. Apparatus metal mould volume cm3 balance capacity 10 kg, least count 1g oven 105 to 1100c sieve 19 mm metal rammer weight 4. Determination of water contentdry density relation using light compaction. Proctor compaction test, soil proctor test full procedure, mdd omc test, standard proctor test,modified proctor hi friends, in this video we are showing full procedure of. The standard proctor test, which meets the requirements of astm d698 method a or aashto t99, is performed in a cubicfoot cylindrical mold using three. Aug 20, 2019 his original test is most commonly referred to as the standard proctor compaction test. These test methods used to determine the relationship between water content and dry unit weight of soils. Standard proctor compaction test lab report pdf modified scribd discussion introduction conclusion comparison and effects of methods on gradation standard proctor test lab report standardized test standard proctor compaction test lab report conclusion standard proctor compaction test lab report discussion modified proctor compaction test lab report standard proctor compaction test lab report. Standard proctor compaction test lab report pdf modified. 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.
The proctor compaction test is a laboratory method of experimentally determining the optimal. 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. The modified proctor was developed in the 1960s i think with a heavier hammer higher drop, etc. Comparisons between modified proctor, standard proctor, 15 blow proctor, and porter static compaction tests on samples of silt and clayey sand by the army corps of engineers in 1945. A free powerpoint ppt presentation displayed as a flash slide show on id. Objective to obtain the graphical relationship of the dry density to moisture content in the form of compaction curve, for determining the values of optimum moisture content omc and maximum dry. Standard proctor test procedure apparatus calculation. Standard proctor test, the soil is compacted by a 5. 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. Laboratory compaction characteristics of soil using modified effort. The standard proctor astm d698was developed some years ago and the hammerheightdrops was put together, supposedly, to mimic current excavation equipment at the time. All these results have been obtained using the standard proctor and modified proctor test methods.
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