Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preventive measures for alkali-silica reactions (binary and ternary systems)
Efforts to prevent alkali-silica reactions (ASR) in Virginia transportation facilities have focused on the selection of ASR-resistant cementitious materials. Initial evaluations of binary systems of ordinary portland cement (OPC) with pozzolans or slag in mortars with Pyrex glass aggregate suggested that high replacement levels of OPC with fly ash or slag could be necessary for ASR resistance. Concern that such high replacement levels could negatively impact early strengths prompted evaluations of concretes with construction aggregates. Concretes were produced with binary and ternary (OPC+silica fume+fly ash or slag) systems and evaluated for strength, transport properties, and ASR resistance. The results illustrate how ternary blends can be used to reduce transport properties or increase ASR resistance of concretes with low replacement levels of fly ash or slag and thus avoid low early strength problems.
Preventive measures for alkali-silica reactions (binary and ternary systems)
Efforts to prevent alkali-silica reactions (ASR) in Virginia transportation facilities have focused on the selection of ASR-resistant cementitious materials. Initial evaluations of binary systems of ordinary portland cement (OPC) with pozzolans or slag in mortars with Pyrex glass aggregate suggested that high replacement levels of OPC with fly ash or slag could be necessary for ASR resistance. Concern that such high replacement levels could negatively impact early strengths prompted evaluations of concretes with construction aggregates. Concretes were produced with binary and ternary (OPC+silica fume+fly ash or slag) systems and evaluated for strength, transport properties, and ASR resistance. The results illustrate how ternary blends can be used to reduce transport properties or increase ASR resistance of concretes with low replacement levels of fly ash or slag and thus avoid low early strength problems.
Preventive measures for alkali-silica reactions (binary and ternary systems)
Lane, D.S. (Autor:in) / Ozyildirim, C. (Autor:in)
1999
8 Seiten, 7 Quellen
Aufsatz (Konferenz)
Englisch
Preventive measures for alkali-silica reactions (binary and ternary systems)
| British Library Online Contents | 1999
Preventive measures for alkali-silica reactions (binary and ternary systems)
| British Library Conference Proceedings | 1999
PAPERS - Preventive measures for alkali-silica reactions (binary and ternary systems)
| Online Contents | 1999
Preventive Measures for Alkali-Silica Reactions Used in Virginia, USA
| British Library Conference Proceedings | 2000
Symposium on Alkali-Aggregate Reaction - Preventive Measures
| TIBKAT | 1975