GPDR
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projektai-lsd Lietuvos akreditacijos ir standartizacijos agentūra
Standartų projektų portalas

Projekto etapai

1. Decision on WI Proposal
2. Projektas
3. Viešoji apklausa
Nuo 2026-08-14 iki 2026-10-13
4. Closure of enquiry
5. Submission to Formal Vote

Organizacija

CEN Europos standartizacijos komitetas

ICS

91.100.10 - Cementas. Gipsas. Kalkės. Skiedinys

Technikos komitetas

TK 25 Rišamosios medžiagos, gipsas ir gipso gaminiai

Užsienio technikos komitetas

CEN/TC 51

Komentarų skaičius

0

Komentavimo pradžia

2026-08-14

Taikymo sritis

This document describes the analytical procedures used to determine the content of tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A) and tetracalcium aluminoferrite (C4AF) of cement starting from a chemical analysis on cement. The method can be applied on all common cements as defined on EN 197-1. This document also describes the calculation procedures for determining of tricalcium silicate (C3S), dicalcium silicate (C2S), aluminate (C3A) and tetracalcium aluminoferrite (C4AF) in the Portland cement clinker as defined in the EN 197-1. In both cases, for cement and clinker, the calculation method is based on the Bogue method assuming each phase has a pure composition. This is a conventional method, whereby the actual mineralogical composition can differ from the results obtained using this method. For the determination of the various chemical species of clinker, cement and basic-complexing residue (BCR) described in this document, the method is indicated in the relevant clause.