Tamping Rammer and Soil Compaction

The soil has complex mixtures consisting of minerals, water, air, organic matter while forming on the land’s surfaces. Soil Compaction is always essential step to do as part of the building process. It is the method of mechanically increasing the soil density. Proper Compaction is crucial to prevent soil settlement from happening and result in expensive maintenance cost or structural failure.
Benefits of Proper Compaction (Engineers Daily, 2014):
  • Increases Load bearing capacity
  • Prevents and reduces soil settlement
  • Provides stability
  • Reduction of water seepage, swelling and contraction
  • Prevents frost damage
soil compaction
Figure 1: Loose Soil (poor load support) Vs Compacted Soil (Good load support). (Texas Tech University: Civil Engineering)
Compaction Equipment comes in different forms such as:
  • Vibratory Forward Plate Compactors
  • Vibratory Reversible Plate Compactors
  • Tamping Rammers
  • Ride on OR Walk Behind Vibratory Rollers
But for this post, we would be focusing on tamping rammers and soil compaction. Since soil is differentiated into three types.
  • Adhesive Soils- Soils with particles that stick together. So a machine with a high impact force would be recommended for compaction. A Tamping Rammer would be the best choice.
  • Granular Soils – This soil type is not as sticky as adhesive soils. The particles would need a shaking or vibratory action to move them. Vibratory plates would be the best choice.
  • Organic – not suitable for compaction hence would not be covered.
A Tamping Rammer could be described as a portable, lightweight compaction equipment used for compaction of trenches, repair pavements and roads (Jalal Afsar, 2012). It is capable of working quickly in applying consecutive impacts to the soil, compact the soil evenly, so the empty spaces between the soil particles are decreased. The Rammer does this by applying high impact force with a frequency range of around 500-750 blows per minute. Therefore, rammers are the best choice for adhesive and semi-adhesive soils. Rammers could get their power from either petrol, diesel or air-powered. The rammer is being designed to be leaning forward at an angle to help it jump forward during operation.

At Uni-Corp, With our range of petrol, diesel or air powered Tamping Rammers, we are confident that you will be able to find the tamping rammer that best suits your needs, giving you the results required. Watch the video below of our Tamping Rammers in Action and Check out our range of tamping rammers @ http://www.uni-corp.com/tamping-rammers-petrol-diesel/ & http://www.uni-corp.com/air-powered-equipment/


1. Engineering, T. T. U. C. “Determining Moisture-Unit Weight Relations of Soil (Compaction Test).” from https://www.slideshare.net/hronaldo10/class-4-soil-compaction-geotechnical-engineering.
2. Daily, E. (2014). “Basic of Soil Compaction.” from http://www.engineersdaily.com/2014/03/basics-of-soil-compaction.html.
3. Afsar, J. (2012). “Compactors | Hydraulic | Rammer | Vibratory Plate Compactor.” from http://www.engineeringintro.com/all-about-construction-equipments/compactors-hydraulic-rammer-vibratory-plate-compactor/.