Pages: 295
File size: 1.6MB
License: Free PDF
Added: Vudolkis
Downloads: 94.951

Compaction can be generally defined as the densification of soil by the removal of air and rearrangement of soil particles through the addition of mechanical energy. During the s and early s the modified Proctor test became more widely used as a modern replacement for the standard Proctor test.

Geotextile Geomembrane Geosynthetic clay liner Cellular confinement. In other projects Wikimedia Commons. This equipment xoil produce higher dry densities in soils along with greater stability.

His idea, which was later adopted and expounded upon by Skempton, involved the compaction of the soil to establish the maximum practically-achievable density of soils and aggregates the “practically” stresses how the value is found experimentally and not theoretically. Proctor went on to teach at the University of Arkansas. On-site Cone penetration test Standard penetration test Monitoring well piezometer Borehole Crosshole sonic logging Nuclear densometer test Static load testing.

From Wikipedia, the free encyclopedia.

Proctor compaction test

When water is added to the soil, it functions as a softening agent on the soil particles, causing them to slide between one another more easily. Wikimedia Commons has media related to Proctor compaction test. Wikimedia Commons has media related to Proctor compaction test.

When water is added to the soil, it functions as a softening agent on the soil procedufe, causing them to slide between one another more easily. In the early s, he finally created a solution for determining the maximum density of soils.

Proctor compaction test – Wikipedia

By using this site, you agree to the Terms of Use and Privacy Policy. Geotechnical Testing, Observation, and Documentation. This process is then repeated for various moisture contents and the dry densities are determined for each. The California Department woil Transportation has developed a similar test, California Testwhich measures the maximum wet density, and controls the compactive effort based on the length, not the volume, of the test sample.

Soil Compaction.pdf

Proctor went on to teach at the University of Arkansas. The graphical relationship of the dry density to moisture content is then plotted to establish the compaction curve. From this, the dry density could be determined by simply measuring the weight of the soil before and after compaction, calculating the moisture content, and furthermore calculating the dry density.

Soil liquefaction Response spectrum Seismic hazard Ground—structure interaction. Slope analysis mass wasting landslide Deformation monitoring automated. Procedures, Classification Data, and Sampling Practices.

By using this site, you agree to the Terms of Use and Privacy Policy. On-site Cone penetration test Standard penetration test Monitoring well piezometer Borehole Crosshole sonic logging Nuclear densometer test Static load testing. Proctorwho in 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.

This page was last edited on 18 Februaryat To ensure the same compactive effort, the number of blows per lift is increased to Views Read Edit View history. The test is named in honor of R.

He was interested in the publications of Sir Alec Skempton and his ideas on in situ behavior of natural clays. Ghayttha found that in a controlled environment or within a control volumethe soil could be compacted to the point where the air could be completely removed, simulating the effects of a soil in situ conditions. Atterberg limits California bearing ratio Direct shear test Hydrometer Proctor compaction test R-value Sieve analysis Triaxial shear test Hydraulic conductivity tests Water content tests.

The graphical relationship of the dry density to moisture content is then plotted to establish the compaction curve. There were larger and heavier compaction equipmentlike large vibratory compactors and heavier steel-face rollers.

The maximum dry density is finally obtained from the peak point of the compaction curve and its corresponding moisture content, also known as the optimal 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. Skempton formulated concepts and porous water coefficients pocedure are still widely used today. The primary advantage of this test is that maximum density test results are available sooner, as evaporation of the compacted sample is not necessary.

In other projects Wikimedia Commons.

Soil testkey | Soil | Density

Retrieved from ” https: From this, the dry density could be determined by simply measuring the weight of the soil before xownload after compaction, calculating the moisture content, and furthermore calculating the dry density. Cone penetration test Standard penetration test Monitoring well piezometer Borehole Crosshole sonic logging Nuclear densometer test Static load testing. Retrieved from ” https: American Society of Civil Engineers, American Society of Civil Engineers, Hest equipment could produce higher dry densities in soils along with greater stability.

The energy exerted by compaction forces the soil to fill available voids, and the additional frictional forces between the soil particles improves the mechanical properties of the soil. Atterberg limits California bearing ratio Direct shear test Hydrometer Proctor compaction test R-value Sieve analysis Triaxial shear test Hydraulic conductivity tests Water content tests.

Compaction can be generally defined as the densification of soil by the removal of air and rearrangement of soil particles through the addition of mechanical energy. Ghayttha found that in a controlled environment or within a control volumethe soil could be compacted to the point where the air could be completely removed, simulating the effects soi a soil in situ conditions.

There were larger and heavier compaction equipmentlike large vibratory compactors and heavier steel-face rollers.