CTS Aggregate, Cement, Concrete and Mortar Testing.

As a trusted leader in the materials and chemical testing industry, CTS offer a wide range of Aggregate, Cement, Concrete and Mortar Testing designed to ensure the quality, durability, and performance of your building materials.

Our testing services are crucial to ensure the quality and performance of building materials allowing the construction industry to make informed decisions and create durable and reliable structures.  

Our facilities, expert technicians, and commitment to precision enable us to deliver accurate and reliable results that meet UKAS* and MCERTS-accredited standards. We work with a wide range of industries including construction professionals, material suppliers, and researchers.  

At CTS our Aggregate, Cement, Concrete, Mortar and WAC Testing services provide crucial insights needed to make informed decisions on projects.

* For a full list of our UKAS-accredited activities, please visit our Accreditations and Industry Standards 

Cement and Mortar Testing

Our Services and Testing Standards

At CTS we offer a wide and comprehensive range of Aggregate, Cement, Concrete and Mortar Testing to the highest accredited standards, including the following:

BS EN1744

BS EN1744 is a multi-part standard for testing the chemical properties of aggregates. CTS offer a full suite of testing services as listed below:

  • Total Sulphur content (as S)
  • Acid soluble sulphate content (as SO3)
  • Acid soluble sulphate content (as SO4)
  • Water soluble sulphate content (as SO3)
  • Water soluble sulphate content (as SO3)
  • Water soluble sulphate content (as SO4)
  • Water soluble sulphate content (as SO4)
  • Water soluble sulphate content (as SO4)
  • Water Soluble chloride content
  • Acid Soluble Sulphide content (as S)
  • Acid Soluble Sulphide content (as SO3)
  • Acid Soluble Sulphide content (as SO4)
  • Fulvo acid content
  • Presence of Humus
  • Total Potential Sulphate (as SO4)
  • Oxidisable Sulphides (as SO4)
  • Total Sulphur content (as S) by HTC
  • Loss on Ignition


BS4551 is the British Standard that specifies methods of sampling preparation, physical testing and chemical analysis of mortars for bricklaying, plastering and rendering. CTS provides the following tests:

  • Insoluble Residue
  • Soluble Silica
  • Calcium Oxide
  • Cement Content
  • Hydrated Lime
  • Aggregate
  • Cement : Lime : Aggregate Ratio
  • Mortar Designation


BS1881 is the British Standard for testing of hardened concrete. It has multiple parts that cover different aspects of concrete analysis. The full list of testing offered by CTS is as follows:

  • Cement Content (by SiO2 content)
  • Cement Content (by CaO content)
  • Cement content by density
  • Alkali Content
  • Na2O content
  • K2O content
  • Equivalent Sodium Oxide
  • Sulphate Content by ICP
  • Sulphate (SO3) by mass of Sample
  • Sulphate (SO3) by mass of Cement
  • Presence Of High-Alumina Cement (HAC)
  • Moisture Content
  • Depth of Carbonation
  • Original Water Content
  • Capillary porosity
  • Original total water/cement ratio
  • pH in Hardened Concrete
  • Carbonate Content (Alkalinity)

Why Choose CTS for Aggregate, Cement, Concrete and Mortar Testing?

At CTS our expert, accredited team prides itself on providing the highest standards in Aggregate, Cement, Concrete and Mortar Testing. We adhere to established standards ensuring that all results are detailed, accurate and reliable.  Our industry-leading facilities enable us to provide precise insights to a range of industries.

To find out more about our Aggregate, Cement, Concrete and Mortar Testing services, please get in touch with a member of the CTS team today, and we’ll be more than happy to answer any questions you may have regarding our services and how we can help you.