maximum value of compaction factor

Workability of Fresh Concrete by Compacting Factor Test

Compacting factor of fresh concrete is done to determine the workability of fresh concrete by compacting factor test as per IS: 1199 – 1959. The apparatus used is Compacting factor apparatus. Procedure to determine workability of fresh concrete by compacting factor test. i) The sample of concrete is placed in the upper hopper up to the brim. ii) The trap-door is opened so that the concrete ...

Maximum soil compaction. - Soil testing engineering - …

2004-12-18· What is an acceptable maximum compaction for a standard proctor. Like i said earlier i thought that 104 to maybe 105 was pushing it. I know that since soil is so variable that a person has to use a little judgement or they will be taking a proctor for every density test performed.

What does it mean by 95% compaction? - Quora

This density is not the maximum possible density, but rather a reference value for a specific material - Sand from pit X, Stockpile #4 on site, etc. For example, if the standard proctor density of a material is determined to be 121.7 pcf in the laboratory, the field density tests should meet or exceed 115.6 pcf in the field to meet a 95% relative compaction specification.

Guidelines for Earthwork Construction Control Testing of ...

Laboratory compaction tests have maximum particle size limitations. While in- place density tests in gravelly soils can provide density results of the total material, a comparison of the total material to a compaction test on finer material would not be valid. Therefore, there is a need for corrections on the degree of compaction. Reclamation has not published a procedure for implementing ...

Earthworks Compaction 101 What you don't know can cost you

Earthworks Compaction 101 What you don't know can cost you ... the minimum and maximum values obtained therefrom to arrive at the reference relative density - 4 - D D for the material. D D (= gDmax (gD - gDmin) gd gDmax - gDmin) where: gDmax = max. Dry Unit Weight obtained using ASTM D4253 gDmin = min. Dry Unit Weight obtained using ASTM D4254 gD = Dry Unit Weight at test …

Agricultural Soil Compaction: Causes and Management

Figure 9. Soil penetrometer used for determining compacted soil horizons. A soil penetrometer consists of a 30-degree steel cone at the end of a steel shaft and a pressure gauge on the other end.


values of maximum dry density and optimum moisture content for a given material, will be specifi c with a given compaction procedure. The water content at which a …


Average maximum dry unit weight and optimum moisture content achieved by standard Proctor Tests (ASTM D698) with plastic limit (PL) and liquid limit (LL). This is a key figure to consult when compacting expansive clay soils. Taken from "Factors Influencing Compaction" (1962), HRB Report 319. Curve Fitting and Speedy Moisture Meters Family of expected wet density compaction curves, based on ...

Factors affecting asphalt compaction | Asphalt magazine

Understanding the factors affecting compaction is an important step in achieving this goal. Jim Scherocman is a consulting engineer specializing in asphalt pavement design and construction. He can be reached at (513) 489-3338.

What is the maximum possible value of compacting factor ...

Compaction factor is the ratio of the weight of fresh, partially compacted concrete/ to fully compacted concrete. Theoretically the maximum value is 1.0, if the fresh concrete has achieved maximum compaction.

Compaction - Faculty of Environment and Technology

Compaction is a process that brings about an increase in soil density or unit weight, accompanied by a decrease in air volume. There is usually no change in water content.

Exp 8 Compacting Factor - Civil Engineers PK

The degree of compaction is also called the compacting factor and is measured with the help of density ratio that is the ratio of density actually achieved in the test to the density of same concrete when it is fully compacted.Its maximum answer is 1 but practically it is lesser than 1.

Chapter 7. Chips, Sawdust, Planer Shavings, Bark, and Hog Fuel

4 Chapter 7 In other words, the limiting value of the compaction ratio is numerically equal to the expansion factor for loose particles. Compaction Percent.

Soil compaction - Wikipedia

In geotechnical engineering, soil compaction is the process in which a stress applied to a soil causes densification as air is displaced from the pores between the soil grains.

Compaction Characteristics of Municipal Solid Waste

Compaction of wastes at a landfill is the main factor that con­ trols short-term density and resulting placement efficiency of wastes in the landfills.

Stiffness, Strength, and Performance of Unbound Aggregate ...

The stiffness, strength, and performance of unbound aggregate layers are largely influenced by moisture content. The assessment of the performance of two types of …

Factors Affecting Compaction of Soil - The Constructor

Compaction of soil is a process of densification of soil by displacing air from the pores by applying external stress on soil at different moisture content. Factors Affecting Compaction of Soil – Effect on Different Soil Types

Fundamentals of Soil Compaction - Intelligent Compaction

SOIL COMPACTION Compaction is the application of mechanical energy to a soil to rearrange the particles and reduce the void ratio. ... 3.2 Factors affecting Compaction • Water content of the soil • The type of soil being compacted • The amount of compactive energy used 3.3 Laboratory Compaction tests There are several types of test which can be used to study the compactive properties of ...

How to Calculate the Soil Compaction Factor | Hunker

Maximum compaction occurs when there is no water in the soil so this helps understand how the existing water is affecting the compaction efforts. Step 4 Dig a small hole into the soil, approximately 6 inches by 6 inches, and remove the soil for the and cone test as the proctor test is being done at the lab.

14.330 Soil Compaction - Faculty Server Contact

Revised 02/2015 Slide 2 of 38 14.330 SOIL MECHANICS Soil Co action WHY COMPACT SOILS? Figure courtesy of Soil Compaction: A Basic Handbook by MultiQuip.

What Is A Compaction Factor Test? - YouTube

2017-12-16· Slump test and compacting factor of fresh concreteouredu what is the maximum possible value for compaction. Compaction factor test the constructor. Method for determination of compacting factor ...

Recommended Compaction Requirements for Placement (1874-S)

and control, compaction to 95 percent of the maximum dry unit weight is recommended. 4. If the Tx 113-E compaction procedure (with neoprene pad and special hammer) is used to specify and control com-paction, it is recommended that the soil be compacted to 92 percent of the maximum dry unit weight determined by the Tx 113-E procedure. 5. For cohesionless soils like the ones tested, if the ...

Concrete Slump and Compacting Factor Test Values and …

Slump test and compacting factor tests are the most widely used workability tests for concrete. The degree of workability of concrete depends on the values of test results obtained from slump test and compacting factor tests.

Strength and stiffness of compacted crushed concrete ...

By this factor, even when ρ d increases by compaction at fixed w, due to an increase in S r, the pre-peak stiffness may stop increasing at a certain ρ d value then may start decreasing. With some types of granular material, even the peak strength starts decreasing with an increase in ρ d from a certain value ( Tatsuoka, 2011 ).

Soil Compaction Handbook - Multiquip Inc

Following are important elements in soil compaction: ... determines the maximum density achievable for the materials and uses this figure as a reference. Secondly, it tests the effects of moisture on soil density. The soil reference value is expressed as a percentage of density. These values are determined before any compaction takes place to develop the compaction specifications. Modified ...


A "golden rule " of compaction testing is: ... When these corrected values for maximum density and optimum moisture are applied to fi eld densities the relationships discussed here will be readily apparent as well as consistent. CHAPTER 7 CORRECTING DENSITY TESTS FOR MATERIAL RETAINED ON THE NO. 4 SIEVE. 7-2 2012 v1.0 This is included for your convenience, it is for instructional purposes ...

Compaction of Global Data Fields

scaling factor chosen so that the maximum data value is the largest integer expressible by some desired number of bits. Examination of compaction errors for various EOF truncations and bit

what is the maximum value of compaction factor

Compaction Factor Test for Concrete Workability - … July 27, 17 By CNMining 116 Comments. Compaction Factor Test for Concrete Workability. Compaction factor test is the workability test for concrete conducted in laboratory.

Maximum Value Of Compaction Factor -

compaction factor crushed rockeducationcare. to maximum (10) value decreases compaction factor. Compaction Factor. The variation of workability is measured in terms of compaction.

Proctor compaction test - Wikipedia

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.