When highway or railway earthworks, bases, sub-bases and dams are prepared for construction, it is necessary to compact the material mechanically, in order to achieve the necessary high degree of density. In doing so, this procedure increases the shear strength, reduces the permeability and water absorption, and reduces the tendency to settle under repeated loading. Compaction is therefore defined as the process of
increasing the density of a material by mechanical means.
To simulate the procedure adopted in the earthworks to obtain a defined level of compaction in the field, several laboratory tests have been developed over the years; differing only by the varying level of energy applied to the soil sample.
The equipment detailed here in Section 33 concerns mainly Proctor moulds and compactors. Section 34 covers the CBR equipment and various models of loading presses, while the equipment presented in Section 35 covers all devices for determining the in-situ density and various models of plate bearing test apparatus. Finally, Section 38 details the various apparatus for determining the permeability of soil.
Burgan Qatar offers an extensive selection of road construction and paving machinery designed to cater for different scope of projects. Below are some of the major types of machines we stock:
