This is important not only for durability, but will save money because less compaction effort is needed to achieve the desired results. The intent is to present the mechanics of performing each test, not the theory behind the test. However, omc is more in case of standard proctor test as compared to the modified proctor test. Soil mechanics i, standart proctor compaction test. Maximum dry density of soil is determined in the laboratory with the help of standard proctor test standardized by astm d698 and aashto t99. Compaction and consolidation overview all about free books.
The degree of compaction of a given soil is measured in terms of its dry density. Fundamentals of geotechnical engineering 3rd edition. They formed in loess and in the underlying stratified loamy outwash. A standardized weight is dropped onto the soil repeatedly and the results are measured. So this read explains in depth, the significance, background, apparatus and procedure of the standard proctor test. Test soil compaction, consolidation and strength for different locations. Prakash, a text book of soil mechanics, new chand and bros. Proctor test astm d155791 the proctor, or modified proctor test, determines the maximum. In modified proctor test, compactive energy is about 4.
Proctor test astm d155791 the proctor, or modified proctor test, determines the maximum density of a soil needed for a specific job site. Proctor developed a laboratory test procedure for determining optimum moisture content at. Download soil mechanics laboratory manual by braja m. The dry density is maximum at the optimum water content. Compaction is the process of densification of soil by reducing air voids. Proctor who in 1933 showed that the dry density of a soil for a given compactive effort depends on the amount of water the soil contains during soil compaction. The standard proctor test is used in the laboratory to determine the optimum moisture content and maximum dry unit weight from a representative soil sample taken from the construction site. Modified proctor test an overview sciencedirect topics. Soil compaction standard and modified proctor test. Compaction tests results vary with the input compactive effort, usually measured in foot pounds per cubic foot of soil. Advanced soil mechanics 4th edition pdf free download. Standard proctor test an overview sciencedirect topics. Geotechnical engineering archives all about free books. Before soils can be compacted in the field, some laboratory tests are required to determine their engineering properties.
Due to compaction the volume of air voids reduces, density of the soil. Moistureunit weight relations of soil compaction test sources. In a standard proctor test a sample of silty sand was compacted in a mold whose. Nov 25, 2015 definition of compaction compaction is the process by which the soil particles are rearranged artificially and packed together into a closer state of contact by mechanical means in order to improve bearing capacity by decreasing porosity and increasing dry density. The test is named in honor of ralph roscoe proctor, who in 1933 showed that the dry density of a soil for a given compactive effort depends on the amount of water the soil contains during soil. Compaction is the comparatively rapid process of reduction mainly air void of soil under short. Proctor test set starter kit proctor soils forney lp. S 1996 a text book of soil mechanics and foundation. Proctor soil compaction test procedures, tools and results. Soil mechanics and foundations pdf download free ebooks. Standard proctor test procedure apparatus calculation.
Class 4 soil compaction geotechnical engineering slideshare. In a standard proctor test a sample of silty sand was compacted in a mold whose volume is ft 3. Thus, as the compaction energy increases maximum dry unit weight increases with a decreasing rate. Basically, the penetrometer is an excellent and an appropriate intrument to measure the hardness of the soil or wearing capacity of the soil different from degree of soil compaction. The purpose of this manual is to present the geotechnical test methods used by the soil mechanics laboratory of the new york state department of transportation s geotechnical engineering bureau. Standard proctor test is used to determine the compaction of different types of soil and the properties of soil with a change in moisture content. These books are used by students of top universities, institutes and colleges. We know that the conditions of site and that of the laboratory are different altogether. If the specific gravity of solids g s for the soil is 2. Weight the soil mass and the mold without the collar w m. You are given the following results from atterberg limits testing on a soil sample wp 23%, wl 50% collected from a boring on a local project site. Proctor compaction test civil official all about civil.
Compaction test of soil is carried out using proctors test to understand compaction characteristics of different soils with change in moisture content. The app is a complete free handbook of soil mechanics with diagrams and graphs. Consistency limits liquid limit casagrande and cone penetration methods, plastic limit and shrinkage limit. The laboratory textbook for this course is booklet of soil laboratory. Standard proctor compaction test and modified proctor compaction test. Jan 27, 2019 standard proctor test or proctor compaction test was the original test devised by an american engineer ralph r. Geotechnical engineering lab lab manual gopalan colleges. The proctor test procedure requires that three different layers of soil are placed into a cylindrical tube in sequence. The empty proctor mould is weighed in the platform balance. Arora this book provides good illustrations for foundation design and properties of soil which make the aspirant easily grasp the concepts. Each layer is compacted by 25 blows of a hammer of weight 2.
The energy compactive effort supplied in this test is 595 kjm3. The book can be helpful to students who wish to specialize in geotechnical at examination level. View table of contents for geotechnical laboratory measurements for engineers. The app serves as a quick reference guide of soil mechanics as engineering subject. The proctor series consists of very deep, well drained soils on outwash plains, stream terraces, kames, and eskers. Pdf geotechnical engineering soil mechanics and foundation. This video is prepared in 2011 by middle east technical university civil engineering department undergraduate students makbule ilgac, gizem can. Department of civil engineering geotechnical engineering lab. A highway fill is to be constructed using the soil. The text is designed in such a manner that the syllabi of a core course in soil mechanicsgeotechnical engineering i prescribed in the curriculum of most of the indian universities is covered. A modified proctor test is conducted by placing soil in a standard mold and.
Test method for laboratory compaction characteristics of soil using. The important dimensions are volume of mould hammer mass drop of hammer. While reading the text, student experiences classroom teachinglearning process. Soil composition, soil classification, soil compaction, hydraulic conductivity, and soil stresses. Today, in this article, we will share the advanced soil mechanics 4th edition pdf file with our valuable users. This marketleading text also offers careful explanations of laboratory procedures in order to help reduce errors and improve safety. In this article, youll know standard compaction proctor test in details from apparatus, theory, to result and much more. Standard proctor test or proctor compaction test was the original test devised by an american engineer ralph r. In geotechnical engineering, soil compaction is the process in which stress is applied to a soil. Nov 05, 2019 soil mechanics and foundation engineering by k. Proctor compaction test full experiment learning technology. The line of optimum moisture contents is usually around 85% saturation and the optimum moisture content decreases with increasing compactive effort.
Pdf introduction to soil mechanics and fundamentals find, read and cite all the research you. Proctor showing that for a given compaction effort, the density of soil depends on the type of soil and moisture content. The proctor compaction test is a laboratory method of experimentally. This book introduces the basic principles of engineering behaviour of soils. In situ density by core cutter and sand replacement methods. The proctor mould is filled with the soil in three layers, each layer being compacted by 25 blows of the standard rammer of 2. Advanced soil mechanics 4th edition pdf free download direct. Proctor test and modified proctor test procedure by khaled nov 25, 2015 civil engineering, geotechnical engineering, laboratory tests 0 r. In case of standard proctor test, a mould of standard of volume 944 cc is filled with soil in three layers. Geotechnical laboratory measurements for engineers wiley. A soils optimum moisture content is usually lower when compacted to modified proctor versus standard proc. A particular soil needs to have an ideal or optimum amount of moisture to achieve maximum density. Apr 16, 2015 civil engineering texas tech university specification for field compaction soil will be compacted to 98% relative compaction as compared to a standard proctor test, astm d698 the soil moisture content will be 2% of optimum.
A proctor compaction test in the laboratory on a borrow pit soil gives a maximum dry unit weight of 19 knm3 and optimum water content of 11. Burmister dams decrease density test dry density effect. 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. Compaction of soil is the optimal moisture content at which a given soil type becomes most dense and achieve its.
The procedure of the proctor compaction test consists of the following steps. Mustafa abuzer karadag 1062 muhammed aslan sevinc 1083 eda kotan 121064 ahmet akcan 1002 burak sen 121082. In geotechnical engineering, soil compactionis the process in which a stress applied to a. The text is designed in such a manner that the syllabi of a core course in soil mechanics geotechnical engineering i prescribed in the curriculum of most of the indian universities is covered. 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. Geotechnical engineering is the branch of civil engineering concerned with the engineering. The bulk unit weight and water content of the soil in the borrow pit are 17. Place the soil in the mixer and gradually add water to reach the desired moisture content w. According to proctor, the compaction of a soil mass is dependent on the following four major factors. Compaction test proctor test civil engineering notes. Bring observation note books, lab manuals and other necessary things for the class. The advanced soil mechanics 4th edition pdf file has been uploaded to our online repository for the safer downloading. It is also known as the moisturedensity relationship test or ordinary compaction and is suitable for particles no larger than 20mm. What is the difference between standard proctor test and.
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