Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Microwave sintering of sulphoaluminate cement with utility wastes
Class C flyash, baghouse dust and scrubber sludge have been successfully used for sulphoaluminate belite (SAB) cement preparation by microwave sintering. For proper raw mix proportioning, the modulus of gehlenite (C2AS)1 Conventional cement notation is used here, i.e. C=CaO, S=SiO2, etc. formation (MG) and modulus of calcium sulphosilicate (2C2S dot CS over bar) formation (MS) were put forward. The results indicated that, when MG and MS were 0.90-1.10, C2AS and 2C2S dot CS over bar could be chemically eliminated when microwave-sintered at low temperature; with the 1150 degree C/10 min sintering condition, microwave-prepared sample had developed into SAB cement clinker with the main phases of C4A3 S and beta-C2S, while a conventionally fired one had not; with proper gypsum addition, microwave-prepared SAB cement developed strength similar to Type-I cement in 28-day hydration.
Microwave sintering of sulphoaluminate cement with utility wastes
Class C flyash, baghouse dust and scrubber sludge have been successfully used for sulphoaluminate belite (SAB) cement preparation by microwave sintering. For proper raw mix proportioning, the modulus of gehlenite (C2AS)1 Conventional cement notation is used here, i.e. C=CaO, S=SiO2, etc. formation (MG) and modulus of calcium sulphosilicate (2C2S dot CS over bar) formation (MS) were put forward. The results indicated that, when MG and MS were 0.90-1.10, C2AS and 2C2S dot CS over bar could be chemically eliminated when microwave-sintered at low temperature; with the 1150 degree C/10 min sintering condition, microwave-prepared sample had developed into SAB cement clinker with the main phases of C4A3 S and beta-C2S, while a conventionally fired one had not; with proper gypsum addition, microwave-prepared SAB cement developed strength similar to Type-I cement in 28-day hydration.
Microwave sintering of sulphoaluminate cement with utility wastes
Li, Haoxuan (Autor:in) / Agrawal, D.K. (Autor:in) / Cheng, Jiping (Autor:in) / Silsbee, M.R. (Autor:in)
Cement and Concrete Research ; 31 ; 1257-1261
2001
5 Seiten, 14 Quellen
Aufsatz (Zeitschrift)
Englisch
Microwave sintering of sulphoaluminate cement with utility wastes
| British Library Online Contents | 2001
Microwave sintering of sulphoaluminate cement with utility wastes
| Online Contents | 2001