C-S-H
Definition
Calcium-silicate-hydrate, often abbreviated C-S-H, is a major binding component of hydrated cement with variable composition and generally poor crystallinity. Its behaviour depends on the material and hydration history rather than one invariant formula or uniquely diagnostic source signature.
- Context
- Cement examination
For example, a cement-related specimen can contain poorly crystalline binding material alongside other phases, rather than a single invariant crystalline compound.
Compare suitable observations and acknowledge mixtures and alteration.
Related terms
- Aggregate
- The granular filler (sand, gravel, crushed rock) that occupies 60-80% of a concrete volume; its mineralogy, grain shape, and size distribution are...
- Clinker
- Clinker is an intermediate material produced during cement manufacture by high-temperature processing of suitable raw materials. It contains phases that react during...
- Hemihydrate
- Calcium-sulfate phase with less structural water than gypsum, used as a plaster precursor. Material processing and hydration history affect the phases present....
Explained in
- Cement, Plaster and Building-Material EvidenceVariable, generally poorly crystalline calcium-silicate-hydrate material in hydrated cement.