What is the meaning of the optimum moisture content?

The water content at which a soil can be compacted to the maximum dry unit weight by a given compactive effort.

What is OMC & MDD?

Explanation: OMC is Optimum Moisture Content, MDD is Maximum Dry Density. The gradual decrease in volume of soil due to expulsion of air voids from it on the application of load is called compaction of the soil. This is significant in Granular soils like sand. Compaction Tests.

What is optimum moisture content of soil Why is it important?

The optimum moisture content provides the maximum dry unit weight that can be obtained. The increase in the dry unit weight means improving the soil properties; increased strength, decrease in permeability and compressiblity. So it is better to use the optimum moisture content.

What is optimum moisture content formula?

The basic premise of this simple method to calculate OMC, optimum moisture content, is based on: One (1) cubic meter (m3) of soil/sand weighs about 1,800 kg. 200 grams of soil/sand is 1/9000th of one cubic meter of the soil/sand. ALL IS DONE BY WEIGHT and not by a percent of moisture.

What does OMC mean in soil?

Optimum moisture content

The Optimum moisture content (OMC) or Optimum Water Content (OWC) is the moisture content at which the soil attains maximum dry density. This OMC value is with respect to the specific amount of compaction energy applied to the soil.

What is moisture content of soil?

The soil moisture content indicates the amount of water present in the soil. It is commonly expressed as the amount of water (in mm of water depth) present in a depth of one metre of soil.

What is the purpose of OMC?

Operations Maintenance Centre. An Operations and Maintenance Centre is an element within a network management system responsible for the operations and maintenance of a specific element or group of elements.

What is meant by OMC?

Related Definitions
OMC means Oil Marketing Company.

What is the moisture content of soil?

What is optimum moisture content of clay soil?

The optimum moisture content of clay soil is 24%, whom compaction test is conducted at 30% moisture content. The moisture content is more than the optimum moisture content, so the soil will have a dispersed structure of the soil.

Is code for optimum moisture content of soil?

Determination of Maximum Dry Density and Optimum Moisture Content of Soil -IS:2720 (Part VII)

Is code for OMC and MDD?

What are the types of moisture content?

They are Oven-dry (OD), Air-dry (AD), Saturated surface dry (SSD) and damp (or wet).

What are different types of soil?

Soil is classified into four types:

  • Sandy soil.
  • Silt Soil.
  • Clay Soil.
  • Loamy Soil.

What is the full form of OMC?


Definition : Odisha Mining Corporation
Category : Governmental » Firms & Organizations
Country/ Region : India
Popularity :
Type : Initialism

What is maximum dry density of soil?

A clayey soil has a maximum dry density of 16 kN/m3 and optimum moisture content of 12%.

What does OMC mean in construction?

Management fees are fees that property owners pay for services provided by their development’s Owners’ Management Company (OMC).

What does OMC Marine stand for?

Outboard Marine Corporation
Outboard Marine Corporation (OMC) was a maker of Evinrude, Johnson and Gale Outboard Motors, and many different brands of boats.

What are the different methods of moisture content determination?


Direct methods Indirect methods
Oven drying Microwave absorption
Vacuum drying
Spectroscopic methods
Distillation method IR absorption

What is moisture content in soil?

Which soil has the highest optimum moisture content?

The optimum moisture content of clay soil is 24%, whom compaction test is conducted at 30% moisture content.

Is code for MDD and OMC?

What is MDD value of soil?

Maximum Dry Density (MDD) is the dry density of soil corresponding to Optimum Moisture Content. Effect of compactive effort: Increase in compactive effort or the energy expended will result in an increase in the maximum dry density and a corresponding decrease in the optimum moisture content.

What is MDD test of soil?

The dry densities, γd, obtained in a series of determinations is plotted against the corresponding moisture content ‘M’. A smooth curve is then drawn through the resulting points and the position of Page 3 the maximum on this curve is determined, which is called maximum dry density (M.D.D).

What are the 4 major moisture conditions for aggregates?

There are four moisture states: Oven-dry (OD); all moisture removed. Air-dry (AD); surface moisture removed, internal pores partially full. Saturated-surface-dry (SSD); surface moisture removed, all internal pores full.