our Services



 For civil engineering analyses of land, you are at the right address at GELS. Be it for soil mechanical classification via tests on stirred soil or drilling descriptions, chemical analysis to determine concrete degradation or soil mechanical analysis to determine the sliding resistance and settlement of soils. Completed with probe charts our laboratory research forms the basis of well-founded geotechnical advice.

Soil improvement with lime, cement or bentonite leads to increased bearing capacity. However, also the shear resistance and water permeability are affected. We measure for you what that influence is.

  • Classification / identification
  • Chemical and mineralogical analysis
  • Soil mechanical testing



 There are many reasons geotechnical engineers would recommend a deep foundation over a shallow one. Some of the common reasons are very large design loads, a poor soil at shallow depth, or site constraints. However, the majority of piling installation works we face are done with a purpose to increase load bearing capacity or avoid a ground collapse at a work site.

It is important to first perform a soil investigation of an area as it helps increase accuracy of a pile design and minimize construction costs. We typically put deep foundations in place using excavation and drilling and can construct piles of various depths and sizes made out of a steel-reinforced concrete. 



Working in partnership with our clients and paying attention to detail, we provide an efficient service that meets their individual needs whilst remaining cost effective by avoiding unnecessary over testing. We fully understand the importance of supplying our clients with the most appropriate testing to the highest of standards in order to meet their specific requirements.

We pride ourselves on providing clients with quick access to their results and will always go out of our way to accommodate their testing requirements, prioritising and fast tracking when necessary.

Concrete, soil, asphalt, tiles, CMU, steel, wood, plastic, piles, chemical and many many tests.



Concrete is one of the most important areas of our activities. GELS has proven its expertise in this industry by means of testings, material examinations and services.

On demand we provide complete test overviews:

  • Concrete
  • Precast concrete
  • Mortar
  • Admixtures & pigments

At GELS your concrete can be subjected to a ton of analyses. From fluidity measurements on fresh concrete to air void contents in hardened concrete. From simple compressive strength tests to a complete durability examination. GELS conducts tests on following materials:

- Concrete tubes

- Concrete masonry units

- Concrete paving blocks

- (Grass) concrete tiles

- Mixing water (for concrete)

- Admixtures

and much much more.


The ease of applying, demolishing and recycling explain the populari

In cooperation with your asphalt technologists, we conduct restricted parts of the pre-study. A doubling of your R&D capacity without investments and knowledge stays where it should: in your hands!

For over two decades GELS functions as a reliable control laboratory for various governments and private institutions. Drilled asphalt cores are examined on layer thickness, void content and compaction ratio. The presence of harmful PAH’s is discovered with a simple test.

Testing in an independent laboratory is the key to an agreement over quality for all involved parties.

GELS is specialized in all analyses on bitumen. Standard characterization according to European guidelines and complementary research of lifespan. Besides European standards, GELS also meets ASTM norms and performs AASHTO Performance Grading.

Bitumen is a raw material for many binders: PMB’s, emulsions, pouring asphalt, joint sealants. Also, these products are tested in our laboratory.



 Physical and chemical testing of rock, soils, aggregates, cement, concrete, admixtures, concrete products, masonry units and bituminous materials to BS, ASTM and other national/international standards. Physical/mechanical and chemical testing of metals, alloys, plastic composites.