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. Cbr test procedure california bearing ratio for road design. Compaction test of soil is also known as proctors test is done to understand. The proctor compaction test is a laboratory method of experimentally. This practice was adopted many years ago and dry density standard methods have been developed in the lab e. The % of proctor then is a way to specify and test how compact a material is. Im 309 determining standard proctor moisture density relationship of soils. A particular soil needs to have an ideal or optimum amount of moisture to achieve maximum density. Maximum dry density of soil is determined in the laboratory with the help of standard proctor test standardized by astm d698 and aashto t99. The result wascompared to the maximum dry density and optimum. Determination of water content dry density relation using heavy compaction. Methods of testing soils for engineering purposes soil compaction. The moisture content dry density relationship of the soil obtained from proctors test forms the basis for.
This typically leads to variances between 8% and 11%, as shown above. It is similar to the british standard heavy compaction test. Proctor soil compaction test procedures, tools and results. The proctor compaction test is a laboratory method of experimentally determining the optimal moisture content at which a given soil. Weigh the proctor mould without base plate and collar. 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.
Ppt proctor compaction test for maximum dry density. Astm d698 00a standard test methods for laboratory. Modified proctor density structural engineering general. According to proctor, the compaction of a soil mass is dependent on the following four major. Astm d698 12e2 standard test methods for laboratory. 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. Proctor showing that for a given compaction effort, the density of soil depends on the type of soil and moisture content. Generally before any soil compaction occurs various samples of the proposed embankment or fill is analyzed in. Standard proctor test is used to determine the compaction of different types of soil and the properties of soil with a. The modified proctor test uses a 10lb hammer in an 18inch drop sleeve. The degree of compaction of a given soil is measured in terms of its dry density. The soil is tested in a lab, the proctor density is determined say its 100 pcf and in the field the contractor may be. With required test data available, p roceed from left to.
What is the difference between standard proctor test and. 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. Proctor soil compaction test compaction is the process of densification of soil by reducing air voids. Evaluation of laboratory compaction procedures for specification of.
Indian institute of technology gandhinagar department of. D69812e2 standard test methods for laboratory compaction characteristics of soil using standard effort 12 400 ftlbfft3 600 knmm3 density water content particle size. Both the original and modified here the modified proctor. The results obtained by these tests are used with the empirical curves to. Standard proctor test or proctor compaction test was the original test devised by an american engineer ralph r. Like other methods described here, core cutter method of field density test is used to determine the insitu density and compaction of soil embankment or subgrade why core cutter method is used in civil.
This method describes the procedure for determining the relationship between the moisture and density of finegrained or coarsegrained. Compaction of soil at maximum dry density is required in many engineering projects. To obtain the graphical relationship of the dry density to moisture content. The nddot modifies this standard to only allow the use of method a and d. The california bearing ratio test is penetration test meant for the evaluation of subgrade strength of roads and pavements. Visualmanual procedure d3740 practice for minimum requirements for agencies. Compaction test proctor test civil engineering notes. Standard proctor test 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. The details included in this test method are for use with the standard proctor test. The results of these field tests are compared to the target values see chapter 5 to determine if the contractor has met specifications for density and moisture. The procedures for determining the maximum dry density, optimum moisture content, inplace density, inplace strength, and moisture content of soils, granular soil, and coarse aggregates in. Compaction test of soil is carried out using proctors test to understand compaction characteristics of different soils with change in moisture content.
Compaction of soil is the optimal moisture content at. Proctor, and porter static compaction tests on samples of silt and clayey sand by the army. Proctor, and porter static compaction tests on samples of silt and. Thoroughly mix the sample with sufficient water to dampen it with approximate water content of 46 %. Proctor density test pdf the standard was originally developed to. 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. 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. Pdf rolling dynamic compaction rdc is a generic term.
Summary of method the test consists of the following steps which are explained in the test procedure. Comparisons between modified proctor, standard proctor, 15blow. 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. In this study, a laboratory procedure is devised to determine the. The proctor mould of ft 3 944 cm is used in astm standards. This can be measured by mainly two methods standard proctor compaction. The standard proctor test astm d698 employs 12,400 ftlbsft. Pdf use of proctor compaction testing for deep fill construction. Standard proctor test procedure apparatus calculation. Manual of test procedures for materials january 1, 2017 manual of test procedures for materials vii standard description page astm d 118807 2015 illinois modified 010117 standard. Modified proctor test an overview sciencedirect topics. All modified proctor compaction tests were performed in accordance with the astm. Compaction is the process of increasing the bulk density of a soil or.
Pdf compaction of soil at maximum dry density is required in many engineering. Proctor, a student at the university of california, berkeley, established a laboratory procedure that easily defines the practical maximum density of a soil sample along with the optimum. 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. Take a representative sample of air dried soil of about 5 kg soil not susceptible to. Maximum dry density of soil and optimum moisture content test. Take a representative ovendried sample, approximately 5 kg in the given pan. A curve is drawn between the water content and the dry density to obtain the maximum dry density and the optimum water content. This is important not only for durability, but will save money because less. Proctor compaction test for maximum dry density 1 proctor compaction test for maximum dry density 2 what is compaction. 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, moisture. The determination of maximum dry density and optimum moisture content of soil is a measure of compaction level of soils. Currently, the proctor test is used primarily by civil engineers to determine the owc for foundation and highway construction purposes and is not routinely conducted.
1157 1285 1201 1141 1232 1000 230 909 488 1050 590 30 400 390 920 996 1152 580 1160 124 333 657 400 1476 1119 837 1001 1464 949 647