Concrete Types

Concrete can be used for foundations, walls, floors, driveways, paths and much more.

The type of concrete needed will depend on the use but will generally include variable parts of cement, water, sand and stone for the different applications it’s needed for.  Other additions can be included to provide further benefits such as fibres to add strength or admixtures to make it waterproof.

Getting the right concrete for each job is therefore crucial to ensure it is fit for purpose and will stand the test of time.

At Readymix Huddersfield we combine over 60 years of expertise with our in-house technical abilities to create and deliver first class quality concrete for every situation. We can advise you on the perfect mix needed to fit your specific project.

We also provide different delivery & collection solutions to suit your requirements.

Setting Standards

Concrete strength is measured by the compressive strength (in Mega Pascals or newtons per mm²) it should be at 28 days old (after it has been laid and cured).

Our concrete strengths range from light use to heavy duty across domestic, commercial, industrial and agricultural applications.  All concretes batched at our plants are tested in accordance with British and European standards – see our Quality Assurance page for details. We can provide industry standard mixes or offer our own alternative products which will deliver the same results, often at a more competitive price.

Standardised Concretes and Designated Concretes have the strength, minimum amount of cement and maximum water ratio set as a European standard, Designed Concretes purely have the strength set as a standard.

If you are unsure what you need get in touch for advice.

Standardised Prescribed Concretes

ST1 ST2  ST3  ST4  ST5

Designated General Concretes

GEN0  GEN1  GEN2  GEN3

Designated Reinforced Concretes

RC20/25 RC25/30 RC28/35 RC32/40 RC35/45 RC40/50 RC40/50XF

Designated Paving Concretes

PAV1  PAV2

Designated Foundation Concretes

FND2  FND3  FND4

Designed Concretes

C6/8 C8/10 C12/15 C16/20 C20/25 C25/30 C28/35 C30/37 C32/40 C35/45 C40/50

Proprietary Concretes

Standardised Prescribed Concretes

These standardised mixes are a defined list of concretes made with prescribed components as directed by the British Standards. These are normally for small, basic jobs mixed on site, have no strength guarantee and carry no quality standards.

Designated Concretes

Designated concretes are suitable for most housing, agricultural, industrial and structural applications, developed to make the selection of the right concrete easier and more reliable. The producer must hold an appropriate level of product conformity certification.  We can provide any of these upon request.

Designated concretes are grouped by name into General (GEN), Reinforced (RC), Foundation (FND) and Pavement (PAV) each suitable for a range of applications.

Designated General Concretes

General ‘GEN’ concrete is used for domestic and similar non-structural applications. The requirements specify a minimum quantity of cement to be included and have fairly low strength levels.

Designated Reinforced Concretes

Reinforced ‘RC’ concrete is a composite material which has additional components added to help stop unacceptable cracking, corrosion and/or structural failure.

Designated Paving Concretes

Designated’ concretes PAV1 and PAV2 are suitable for house drives, domestic parking and heavy-duty external paving and include freeze-thaw resistance.

Designated Foundation Concretes

Foundation ‘FND’ concrete is used in foundations where the ground soil contains sulfates which can damage ordinary concrete.  Sulfate attack causes concrete deterioration which can include softening and decay, or expansive cracking and other disruption associated with the formation of ettringite (calcium sulfoaluminate hydrate).  Our technical team can assist you if you need further advice.

Designed Concretes

Designed concretes are based on a specific strength required for an application as directed by European Standards.  Unlike ‘Designated’ and ‘Standardised’ concretes, these don’t specify the cement to water mix ratios.  We cube test our concrete so to select the right strength concrete for your project, select the second number in the specification.

For example, a C25/30 will give you 30N/mm2 strength at 28 days.

You can order any designed concretes from our team.

C6/8 C8/10 C12/15 C16/20 C20/25 C25/30 C28/35 C30/37 C32/40 C35/45 C40/50

Proprietary Concretes

Proprietary concretes are designed by the concrete producer for a specific purpose or performance requirement. The composition is confidential to the producer and a performance guarantee will be given for the intended use. Proprietary concretes are used where high performance or specific properties are required such as easy pouring concrete.

Sustainable Concretes

The construction, operation and maintenance of the built environment accounts for 45% of total UK carbon emissions.  We can provide 95% of our concrete ranges with ‘Eco Mix’ which provides a much lower level of embodied CO2 than ordinary concrete.

We also have a specific Sustainable Range and many of our Farm & Agricultural Concrete uses Eco Mix.

Contact our team for any technical or sales enquiries.

Menu