TY - GEN
T1 - A novel cellulose based stabilizing admixture for self compacting concrete
AU - Vehmas, Tapio
AU - Leivo, Markku
N1 - CA2: TK203
SDA: AMA
Project code: 71162
PY - 2011
Y1 - 2011
N2 - A Novel Cellulose Based stabilizing Admixture (NCBA) with unique rheological properties was introduced. Rheological effects of NCBA were studied in cement paste, mortar and self compacting concrete. It was observed that NCBA increased only the mixes yield stress, whereas commercial melamine sulphonate based stabilizer increased mixes’ yield stress and plastic viscosity. This phenomenon made it possible to produce a good quality self compacting concrete with relatively low performance aggregates and a high water /cement –ratio.
AB - A Novel Cellulose Based stabilizing Admixture (NCBA) with unique rheological properties was introduced. Rheological effects of NCBA were studied in cement paste, mortar and self compacting concrete. It was observed that NCBA increased only the mixes yield stress, whereas commercial melamine sulphonate based stabilizer increased mixes’ yield stress and plastic viscosity. This phenomenon made it possible to produce a good quality self compacting concrete with relatively low performance aggregates and a high water /cement –ratio.
KW - self compacting concrete
KW - stabilizing admixture
KW - rheology
KW - Bingham model
UR - https://nordicconcrete.net/wp-content/uploads/2011/01/Vol-43-Proceedings-Finland-2011.pdf
M3 - Conference article in proceedings
T3 - Nordic Concrete Research
SP - 281
EP - 285
BT - XXI Nordic Concrete Research Symposia
PB - Norsk Betongforening
CY - Oslo
T2 - XXI Nordic Concrete Research Symposium
Y2 - 30 May 2011 through 1 June 2011
ER -