Multivariate management of entrained air and rheology in cementitious mixes
US8491717B2 · kind B2 · utility
23Cited by
13References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 2012 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | May 29, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2103/308
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method and system for monitoring and adjusting both air content and rheology (e.g., slump, slump flow) properties of a hydratable concrete mix contained within a concrete mixer. The system simultaneously tracks dosage of both rheology-modifying admixture (e.g., polycarboxylate polymer cement dispersant) and air control agent or “ACA” (e.g., air entraining agent) by reference to at least four nominal dose response (“NDR”) curves or profiles, which at least four NDR profiles are based on the respective behaviors of each of the ACA and rheology-modifying agent on air content and rheology.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.