Lab report proctor testcompaction test introduction for. Relatively undisturbed soil samples were recovered at selected intervals within the boringranging from approximately 3 to 5 feet, using a twoinch outside diameter standard penetration test spt sampler. The proctor compaction test is a test that compacts the soil material at various moisture contents. Site address, legal description, and the grading permit under which the work is authorized. Here we are going to compute the bulk density of sand down to the degree of compaction of soil. In the proctor test, the soil is compacted in a mold that has a volume of 944 cm3. Compaction reduces the voids ratio making it more difficult for water to flow through water seepage soil. Laboratory soil compaction test linkedin slideshare. Coring of bedrock was in accordance with the requirements of astm d 21. Modified proctor aashto t180astm d1557 testing procedures more closely approximate the compaction effort of modern equipment. The location of the test should be determined accurately.
Soil compaction is the process in which stress is applied to a soil which causes densification as the voids are filled with solids. Site address, legal description, and the grading permit under which the work is. Standard proctor test or proctor compaction test was the original test devised by an american engineer ralph r. There are two proctor tests that defined by the american association of highway officials and american standard testing material.
Compaction increases the shear strength of the soil. The example soil test reports are in exactly the same format as the one you received in the mail from the university of minnesota soil testing laboratory. Standard test methods for laboratory compaction characteristics of soil using modi. The specific gravity using gas jar method of the soil was recorded as 2.
Example soil test report horticultural crops soil testing. Compaction of soils is a major construction activity in civil engineering, and particularly in the transport industry. Compaction of soil purpose and effects of soil compaction. Apr 17, 2020 a compaction test is a soil quality test used to assess the level of compaction which can occur in the soil on a site. The standard proctor compaction test was first developed by r. Proctor test components are shown 25 blows were exerted per lift, which equals 25 x 15 375 ftlbs. For the same type of soil, the modified proctor yields a higher maximum dry density and lower optimum moisture content. This paper presents a brief historical account of soil compaction development. If more than one crop is being grown, there will be separate reports for each crop type. All participants reported that they used the a sized mould and hand compacted.
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. If performed improperly, settlement of the soil could occur and result in unnecessary maintenance costs or structure failure. In construction, this is a significant part of the building process. Compaction test of soil is carried out using proctors test to understand compaction characteristics of different soils with change in moisture content. The final soil survey is done after the line for a project has been approved by the location and design division. Soils field testing north dakota department of transportation.
The total input energy for the five lifts is 5 x 375 1875 ftlbs on a soil sample with a volume of th cubic foot. May 01, 2017 types of soil compaction test in laboratory standard proctor test modified proctor test gyratory compaction test 11. This compaction is a comparison of the laboratory compaction proctor to the field density and recorded as a percentage. They may also be performed to learn more about a soil in a particular area, whether or not the area is slated for development. If a heavier degree of compaction corresponding to the bs heavy compaction test section 6. One example contains recommendations for an established perennial fruit crop, grapes, and the other example contains recommendations for three annual vegetable crops. The moisture content dry density relationship of the soil obtained from proctors test forms the basis for. Evaluation of laboratory compaction techniques for simulating. Simulating field soil compaction phase ii research report no fldotrmcbb890f fsu project no 612054939 by w. Proctor soil compaction test procedures, tools and results. Evaluation of laboratory compaction techniques for.
Standard proctor test procedure apparatus calculation. Compaction is the process of densification of soil by reducing air voids. Measures density of soil for comparing the degree of compaction vs specs. The relationship between dry density and moisture content for a given degree of compactive effort. Soil compaction is defined as the method of mechanically increasing the density of soil. Soil samples from the test borings were visually classified in the field by jacques whitford in accordance with the unified soil classification system uscs. Soil compaction testing otherwise known as density tests are performed in order to determine the soil compaction level. Proctor 1933 for assessing compacted fill and from then it became a universal standard test. We know that the conditions of site and that of the laboratory are different altogether. This plays a vital part in construction for soils are mainly used as supports for a lot of infrastructures. 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 typical compaction curve obtained from the british standard light compaction test section 6. Test frequency nd t 180 or nd t 99, moisturedensity relations of soils multipoint 1 compaction curve for each change in soil. The moisture content dry density relationship of the soil obtained from proctors test forms the basis for specification and field compaction control. Compaction of soil at maximum dry density is required in many engineering projects. Compaction tests are commonly performed as part of a geotechnical profile of a building site. Soils field testing dig a hole with the auger, trowel, or other tools test hole must be approx. This is a continuation of the previous article i posted how to do a compaction test or insitu density test, about the calculation of the compaction test report. Compaction tests furnish the following basic data for soils. The compacting factor test is performed to find out the workability of concrete. The degree of compaction of a given soil is measured in terms of its dry density. Final report for the florida department of transportation.
Further, plot the compaction curve and 0% and 5% air void lines and report the optimum moisture content. What types of soil tests required for building construction. Soil in place is tested for inplace dry bulk density, and the result is divided by the maximum dry density to obtain a relative compaction for the soil in place. The standard proctor compaction test is used in establishing a relationship between moisture content and dry density for the soil under controlled conditions. In other words, the density is a comparison of the weight of one cubic foot of material in the field.
Soil compaction compaction is the application of mechanical energy to a soil to rearrange the particles and reduce the void ratio. This is important if the soil is being used to retain water such as would be required for an earth dam. It is also desirable to know the optimum soil conditions for compacting a given soil. Compaction tests results vary with the input compactive effort, usually measured in foot pounds per cubic foot of soil. Laboratory compaction tests provide the basis for control procedures used on site. Compaction factor test of concrete for low workability concrete. The dry density is maximum at the optimum water content. Compaction of soil increases the shear strength and load bearing capacity of the soil. Interpretation of geotechnical properties of cement treated. Proctor showing that for a given compaction effort, the density of soil depends on the type of soil and moisture content. Interpretation of geotechnical properties of cement treated soils. In other words, the density is a comparison of the weight of one cubic foot. Soil compaction 2017 76 proficiency testing program report. Slump test doesnt give accurate results for the low workability of concrete when the slump is 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 line of optimum moisture contents is usually around 85% saturation and the optimum moisture content decreases with increasing compactive effort. Pdf laboratory soil testing report by arvind kumar jha. Dec 27, 2014 this is a continuation of the previous article i posted how to do a compaction test or insitu density test, about the calculation of the compaction test report. Compaction of soil is an important process, as it helps it of achieve certain physical properties necessary for its proper behaviour under loading. Slump test doesnt give accurate results for the low workability of concrete when the slump is report. Compaction of soil process, necessity and theory of compaction. Types of soil compaction test in laboratory standard proctor test modified proctor test gyratory compaction test 11. All participants nominated the test methods used as as 1289. Compaction of soil lecture 31 geotechnical engineering. The report shall include, but not limited to the following. Nd d 2167, density and unit weight of soil in place by the rubber balloon method, or nd t 191, density of soil inplace by the sand cone method 1 test per 1,500 feet of compacted roadway per 12 lift. In the other hand, soil compaction test is carried out in the laboratory in determining the ideal volume of water to be poured while compaction the soil on site so that the required. The standard proctor test astm d698, aashto t99, and the modified. Also, question 8 in the following test data records from a proctor compaction test on a soil sample collected from the site.