How is situ density calculated?

The in-situ density of material is determined by the weight of the excavated material divided by the in-situ volume.

How do you calculate sand replacement?

Sand Replacement Method Procedure:

1. Calibration of cone apparatus should be done firstly:
2. Weigh the sand cone apparatus full of known density sand.
3. Seat the density plate on leveled clean test ground.
4. Dig out soil 4” to 6″ deep with the same diameter as the density plate hole.
5. Collect all the excavated soil and weigh it.

Why do we find the density of sand in sand replacement method?

The sand replacement test method is also used to determine the in-place density of compacted soil in order to compare it with the designated compaction degree, hence it specifies how much the compaction of the soil is close to the designated compaction degree.

What are the methods available for determination of in situ density?

There are several methods available for the determination of in-situ density. Two commonly used methods are: 1. Core Cutter Method 2. Sand Replacement Method.

What is in situ density?

The in-situ density is defined as the bulk density of soil measured at its actual depth. By conducting this test, it is possible to determine the field density of the soil. The moisture content is likely to vary from time and hence the field density also.

How do you calculate dry density?

Calculate the dry density using the following equation: Dry Density (pcf) = Wet Density (pcf) – Moisture Content (pcf).

What is density of sand?

Dry sand itself has a density of 1602 kg / m3.

How do you find the density of sand?

Remember that density is the mass per unit volume. Divide the mass of the sand by the volume of the sand.

Where is sand replacement method used?

9.3. The sand replacement method is used to determine in-place density. The sand replacement method of determination of in situ density uses a sand-pouring cylinder, cylindrical calibrating container, tray with a central circular hole, and a chisel.

What is the objective of sand replacement method?

The primary objective of the sand replacement method is to determine the dry density of soil. It is used as a control test to check if the soil has acquired the designated dry density after compaction.

How do you find the dry density of sand?

Sand Density Formula: The ratio of mass of the sand to the volume of calibrating container gives you the density of sand. To fill sand known volume container(bucket, say 15 lit(or . 015 m3) and then weight (say-24 kg)of that sand. You can just measure it by filling a container of know volume and weighing it..

What is sandsand cone test?

Sand Cone test is also referred to as Sand Replacement method in India and Pakistan. That is because in this method, we use sand as a replacement to find the volume of the hole in the ground. Now basically, the in-situ density of soil is weight of the soil sample divided by the volume of the sample.

How to determine field density using sand replacement?

There are three steps in the determination of field density using the sand replacement method, the first step involves calibration of the sand-pouring cylinder, and in the second step soil density is measured, and in the third step water content and dry density is measured.

What is the sand replacement method?

This is usually done by the sand replacement method. This method is also commonly known as the Sand Cone Method. The determination of dry density is of utmost importance as it is required for the estimation of the bearing capacity of the soil.

How to determine in-situ dry density of soil?

The in-situ dry density of soil can be efficiently determined by the sand replacement method. This method is also commonly known as the Sand Cone Method. Usually, the soil after compaction in the field has to be checked for the specified dry density. This is usually done by the sand replacement method.