Standards for cement, aggregates, admixtures

EN 197 - Cement

Cements (for use in concrete) are factory produced materials produced by either inter-grinding or blending their constituents at the cement works.  They conform primarily to the British/European Standard BS EN 197-1.  Some cements, such as sulfate-resisting Portland cement (SRPC) are however still covered by residual British Standards.

The table below gives the current position (April 2005) for standardised product specifications for cements manufactured/supplied in volume in the UK:

British/European Standard

Residual British Standard

Cement

Standard notation

Portland cement clinker content %

Content of other main constituents %

BS EN 197-1

-

Portland cement

CEM I

95 - 100

-

 

 

 

 

 

 

BS EN 197-1

-

Portland-fly ash cement

CEM II/B-V

65 - 79

21 - 35

BS EN 197-1

-

Portland-limestone cement

CEM II/A-L (LL)

80 - 94

6 - 20

Note

Cements are CE marked against the BS EN 197 product standards using BS EN 197-2 Conformity evaluation.

1) The European standardisation of sulfate-resisting cements is under review in CEN the European standardisation body.

In addition, the following standards have either been published in revent years or are residual in nature:

BS EN 197-4

BS 146(2)

Low early strength blastfurnace cements

CEM III/A or III/B or III/C

5 - 64

36 - 95

BS EN 14216

-

Very low heat special cements

VLH III or VLH IV or VLH V

Various

Various

-

BS 6610(3)

Pozzolanic pulverized-fuel ash cement

-

45 - 64

36 - 55

-

BS 4248(4)

Supersulfated cement

-

80 - 94

6 - 20

Note

4) Supersulfated cement is to be standardised in Europe but development work is yet to begin

   

 

EN 12620:2002 Aggregates for concrete
This standard specifies the properties of aggregates and fillers produced from natural, manufactured or recycled materials.  It covers normal weight aggregates with a density greater than 200kg/m3.  BSI has produced a guidance document on this standard, PD6682-1:2009.
EN 13055 Lightweight Aggregates
Lightweight aggregates is in two parts:

  • EN 13055-1:2002. Lightweight aggregates. Lightweight aggregates for concrete, mortar and grout. 
  • EN 13055-2:2004. Lightweight aggregates. Lightweight aggregates for bituminous mixtures and surface treatments and for unbound and bound applications. 

These standards have been adopted and are being used. They are available from BSI, click here together with a guidance document on their use, PD6682-4. Conflicting standards have been withdrawn. Both are available from BSI, click here.
EN 450 Fly ash for concrete. 
This standard is in two parts:

  • EN 450-1:2012. Fly ash for concrete. Definitions, requirements and conformity criteria.
  • EN 450-2:2005. Fly ash for concrete. Conformity evaluation.

EN 934 Admixtures for concrete, mortar and grout
There are six parts of EN 934.

  • EN 934-1:2008. Admixtures for concrete, mortar and grout. Common requirements.
  • EN 934-2:2009. Admixtures for concrete, mortar and grout. Concrete admixtures. Definitions, requirements, conformity, marking and labelling
  • EN 934-3:2009. Admixtures for concrete, mortar and grout. Admixtures for masonry mortar. Definitions, requirements, conformity, marking and labelling
  • EN 934-4:2009. Admixtures for concrete, mortar and grout. Admixtures for grout for prestressing tendons. Definitions, requirements, conformity, marking and labelling
  • EN 934-5:2007. Admixtures for concrete, mortar and grout. Admixtures for sprayed concrete. Definitions, requirements, conformity, marking and labelling.  This standard is a Harmonised European Standard (hEN).
  • EN 934-6:2001. Admixtures for concrete, mortar and grout. Sampling, conformity control and evaluation of conformity

EN 1008:2002 Mixing water for concrete
This standard specifies the requirements for water that is suitable for making concrete that conforms to EN206 and describes methods for assessing its suitability.
EN 13263 Silica fume for concrete
Part 1, Definitions and conformity and Part 2, Conformity evaluation, are (April 2005) out for Formal vote.