Influence of clay in limestone fillers for self-compacting cement based composites
✍ Scribed by Luc Courard; Frédéric Michel; Julie Pierard
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 474 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0950-0618
No coin nor oath required. For personal study only.
✦ Synopsis
High workability together with a good resistance to segregation is needed for cement based composites, specifically fresh self-compacting mortars (SCM); in this prospect, the amount of coarse materials has to be reduced and replaced by fine material. Several limestone fillers are here compared and analysed. These by-products are issued from different industrial sectors, such as the aggregate and lime production industry (quarrying operations) and the ornamental stones industry (sawing operations).
Particular attention has been paid to clay content, as consistency of fresh mortars was varying, while other physical characteristics like granulometry remained the same. Relationship between the physicochemical properties of the fillers and the properties of fresh and hardened mortars are brought forward. Even if it may affect fresh properties of mortars, results clearly show that clay type and content has minor influence than limestone filler itself.