Manufacture of cement
What this code covers
Use this class for manufacture of cement when the main activity includes Manufacture of clinker and hydraulic cements, including Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinker. Check exclusions and nearby codes before applying it to a mixed activity.
Official NACE Rev. 2.1 labels and explanatory notes are imported from the source dataset. Plain-language explanations are shown separately so readers can compare interpretation with the source text.
No child codes; this is a class-level code.
- manufacture of clinker and hydraulic cements, including Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinker
- manufacture of refractory mortars, concrete, etc., see 23.20
- manufacture of ready-mixed and dry-mix concrete and mortars, see 23.63, 23.64
- manufacture of articles of cement, see 23.65, 23.66
- manufacture of cements used in dentistry, see 32.50
- Compare with 23.20, 23.63, 23.64 when the main activity overlaps another code.
- Check national equivalent caveats before using this code for local registration or filing workflows.
- If the main revenue activity appears in an exclusion, compare the alternative code before deciding.
Use this guide as classification support, not legal, tax, filing, or regulatory advice.
- - manufacture of clinker and hydraulic cements, including Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinker
- - manufacture of refractory mortars, concrete, etc., see 23.20
- - manufacture of ready-mixed and dry-mix concrete and mortars, see 23.63, 23.64
- - manufacture of articles of cement, see 23.65, 23.66
- - manufacture of cements used in dentistry, see 32.50
- - Manufacture of clinker and hydraulic cements, including Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinker
- - Manufacture of refractory mortars, concrete, etc.
- - Manufacture of ready-mixed and dry-mix concrete and mortars
- - Manufacture of articles of cement
- - Manufacture of cements used in dentistry
What is NACE 23.51 used for?
Use NACE 23.51 for manufacture of cement when the main activity matches this scope: Use this class for manufacture of cement when the main activity includes Manufacture of clinker and hydraulic cements, including Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinker. Check exclusions and nearby codes before applying it to a mixed activity.
What are typical examples for 23.51?
Typical examples include Manufacture of clinker and hydraulic cements, including Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinker.
When might 23.51 not be the right code?
Review another code when the activity is closer to manufacture of refractory mortars, concrete, etc., see 23.20 and manufacture of ready-mixed and dry-mix concrete and mortars, see 23.63, 23.64.
Which codes should I compare before choosing 23.51?
Compare 23.51 with 23.20 Manufacture of refractory products, 23.63 Manufacture of ready-mixed concrete, and 23.64 Manufacture of mortars when the activity description is ambiguous.
Use this class for manufacture of refractory products when the main activity includes Manufacture of intermediate products from mined or quarried non-metallic minerals (e.g. gravel, stone or clay) and Manufacture of refractory mortars, concretes, etc.. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for manufacture of ready-mixed concrete when the main activity includes Manufacture of concrete ready to pour, i.e. to which water has already been added and which is usually transported in concrete mixer lorries. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for manufacture of mortars when the main activity includes Manufacture of non-refractory mortars and of concrete not yet mixed with water. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for manufacture of fibre cement when the main activity includes Manufacture of panels, boards, tiles, blocks and similar articles of vegetable substances (e.g. wood wool, straw, reeds, rushes) agglomerated with cement, plaster or other mineral binders and Manufacture of articles of asbestos cement or cellulose fibre cement. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for manufacture of other articles of concrete, cement and plaster when the main activity includes Manufacture of other articles of concrete, plaster or of compositions based on plaster, cement or artificial stone (e.g. statuary, bas- and haut-reliefs, vases, flowerpots) and Manufacture of ornamented boards or panels of plaster or of compositions based on plaster. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for manufacture of medical and dental instruments and supplies when the main activity includes Manufacture of surgical drapes and sterile yarns/tissue and Manufacture of dental fillings and cements (except denture adhesives), dental wax and other dental plaster preparations. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for manufacture of lime and plaster when the main activity includes Manufacture of quicklime, slaked lime and hydraulic lime and Manufacture of plasters of calcined gypsum or calcium sulphate. Check exclusions and nearby codes before applying it to a mixed activity.
Use this group for the broader activity area of manufacture of cement, lime and plaster, including Manufacture of cement and Manufacture of lime and plaster. Open the child codes when a more specific code is needed.
Rev. 2 code 23.51 maps to the same Rev. 2.1 class 23.51 Manufacture of cement.
Official close match imported from NACE Rev. 2.1.
Low operational impact is expected, but systems should still store the target Rev. 2.1 version explicitly.
Confirm the target version field and update references where Rev. 2.1 is required.