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Soil and hydraulically bound mixtures

Soil (treatment)

Soil is suited for many architectural applications provided it meets the corresponding conditions. As it is important for you to know for which applications a batch of soil can be used, Geo Measuring & Analysis nv has the necessary expertise to perform various tests on soil samples.  

  • Classification to check if the soil is suited for being used, for instance, for the replenishment of sewage trenches or as sub-foundation (tests specified in the standard specifications SB 250) is executed very frequently.
  • Drawing up a normal or enhanced Proctor curve to establish at which water content the material in question can be compacted best.
  • Defining the IPI or CBR value: these parameters are a measure for the bearing capacity of the soil and can be combined with subsequent on-site plate load tests, which – in turn – check the compaction.
  • By taking on-site samples of the compacted soil using cutting rings, the degree of compaction can be determined by establishing the density of the soil sample.
  • A lime study involves mixing the soil with 1, 2 and 3% of lime. For each of these mixtures, a new Proctor curve is drawn up and the bearing capacity is established. This results in a suited binding agent dosage.
  • A cement study is conducted according to the same principle, except that here test pieces are made that after a given period of time are subjected to tests, the compressive strength being the most important value here.  

Geo Measuring & Analysis nv has the knowledge and the equipment to take representative on-site samples. In short, based on laboratory tests you can acquire more information on, a/o, the processability and suitability of the material in question, which will save a lot of time and money on site.

Hydraulically bound mixtures

Hydraulically bound mixtures consist of a material such as soil, sand or rough granulate and a binding agent (lime, cement, fly ash...).  

Both the raw materials and finished product of hydraulically bound mixtures must meet certain quality requirements.  

A preliminary study will be conducted to determine the composition of the mixture and includes the following tests:

  • Grading
  • Optimum water content based on Proctor curve
  • Cement content to be added (making test pieces at the ideal water content and with different cement contents, after which these test pieces are kept for a certain period of time in a temperature-controlled environment and subsequently tested).

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