compaction volume loss gravel

  • construction - How much volume is lost after compacting 3 ...

    is what some sledge hammer thing does to a couple of buckets of soil over the course of 15 to 30 minutes with some guy standing there adding water until it's perfect. You will be lucky to get 93% with standard effort. That gets you about 10% loss in volume. However, as others mentioned, you will get more loss on a finer substrata.

  • 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. When stress is applied that causes densification due to water (or other liquid) being displaced from between the soil grains, then consolidation, not compaction, has occurred.


    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.The degree of compaction is measured by dry unit weight and depends on the water content and compactive effort (weight of hammer, number of impacts, weight of roller, number of passes).

  • Soil compaction | UMN Extension

    Soil compaction occurs when soil particles are pressed together, reducing pore space between them (Figure 1). Heavily compacted soils contain few large pores, less total pore volume and, consequently, a greater density. A compacted soil has a reduced rate of both water infiltration and drainage.

  • How to Calculate the Soil Compaction Factor | Hunker

    Dry it in the oven for 12 hours to drive out all the water content. Weigh the soil again after it comes out of the oven to find the amount of water content that was originally in the soil sample. Maximum compaction occurs when there is no water in the soil so this helps understand how the existing water is affecting the compaction efforts.

  • Table 4-1.-Volume Changes

    Table 4-1.-Volume Changes obtained are in cubic feet. To convert cubic feet into cubic yards, divide the cubic feet by 27 (there are 27 cubic feet in 1 cubic yard). Another method is to divide each original linear measurement by 3 to convert the number of feet into yards; then ply the values together to cubic yards. Be aware, however, that this method may lead to working in fractions ...

  • CEEN 341 - Lecture 6 - Soil Compaction - YouTube

    Feb 01, 2017 · This lecture describes what soil compaction is and why it is beneficial to civil engineers. The theory and mechanics behind Proctor tests are covered. An explanation is provided for overcompaction ...

  • Fill volume estimate accounts for compaction? - Earthwork ...

    Mar 10, 2003 · Moisture content will be too big a factor if you pay by weight, for soil or gravel. Go with cubic yards, meters. Pay for cubic yards of excavation (classified), cubic yards compacting embankment, and overhaul this is the normal convention. Don't sweat the borrow amount that can vary, just make sure you know how much fill you need.

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  • Compaction of Soil, Purpose, Effects & Factors Affecting ...

    Compaction is the application of mechanical energy to a soil to rearrange the particles and reduce the void ratio. The principal reason for compacting soil is to reduce subsequent settlement under working loads. As water is added to a soil ( at low moisture content) it becomes easier for the particles to move past one another during the application of the compacting

  • Compaction, Excavation and Earthwork on the Geotechnical ...

    Borrow soil from another location that will be used as compacted fill for this project has a moisture content of 12%, a void ratio of 0.6, and a specific gravity of 2.65. Assuming that no moisture is lost during transport, what is the volume of borrow required that is needed for 28.32 m 3 (1000 ft 3) of compacted .

  • How To Calculate A Compaction Test Report | Quality ...

    Dec 27, 2014 · This is a continuation of the previous article I posted How to do a compaction test or In-situ density test, about the calculation of the compaction test report.Here we are going to compute the bulk density of sand down to the degree of compaction of soil.. I would really want to pursue this article just to completely show the full process of getting the results of the test from taking the ...

  • 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. 3.1 Purpose of Compaction • The principal reason for compacting soil is to reduce subsequent settlement under working loads. • Compaction increases the shear strength of the soil.