Microwave sintering of sulphoaluminate cement with utility wastes

Haoxuan Li; Dinesh K. Agrawal; Jiping Cheng; Michael R. Silsbee

doi:10.1016/S0008-8846(01)00579-8

Microwave sintering of sulphoaluminate cement with utility wastes

Haoxuan Li
, Dinesh K. Agrawal
, Jiping Cheng
, Michael R. Silsbee

Materials Research Institute (MRI)

Research output: Contribution to journal › Article › peer-review

55 Scopus citations

Abstract

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·CS̄) formation (MS) were put forward. The results indicated that, when MG and MS were 0.90-1.10, C₂AS and 2C₂S·CS̄ could be chemically eliminated when microwave-sintered at low temperature; with the 1150°C/10 min sintering condition, microwave-prepared sample had developed into SAB cement clinker with the main phases of C₄A₃S and β-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.

Original language	English (US)
Pages (from-to)	1257-1261
Number of pages	5
Journal	Cement and Concrete Research
Volume	31
Issue number	9
DOIs	https://doi.org/10.1016/S0008-8846(01)00579-8
State	Published - Sep 2001

All Science Journal Classification (ASJC) codes

Building and Construction
General Materials Science

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10.1016/S0008-8846(01)00579-8

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@article{e60e2b6259854b819f426655462733cb,

title = "Microwave sintering of sulphoaluminate cement with utility wastes",

abstract = "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·C{\=S}) formation (MS) were put forward. The results indicated that, when MG and MS were 0.90-1.10, C2AS and 2C2S·C{\=S} could be chemically eliminated when microwave-sintered at low temperature; with the 1150°C/10 min sintering condition, microwave-prepared sample had developed into SAB cement clinker with the main phases of C4A3S and β-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.",

author = "Haoxuan Li and Agrawal, \{Dinesh K.\} and Jiping Cheng and Silsbee, \{Michael R.\}",

note = "Funding Information: This research was partly supported by a research grant from Electric Power Research Institute, which is gratefully acknowledged. ",

year = "2001",

month = sep,

doi = "10.1016/S0008-8846(01)00579-8",

language = "English (US)",

volume = "31",

pages = "1257--1261",

journal = "Cement and Concrete Research",

issn = "0008-8846",

publisher = "Elsevier Ltd",

number = "9",

}

TY - JOUR

T1 - Microwave sintering of sulphoaluminate cement with utility wastes

AU - Li, Haoxuan

AU - Agrawal, Dinesh K.

AU - Cheng, Jiping

AU - Silsbee, Michael R.

N1 - Funding Information: This research was partly supported by a research grant from Electric Power Research Institute, which is gratefully acknowledged.

PY - 2001/9

Y1 - 2001/9

N2 - 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·CS̄) formation (MS) were put forward. The results indicated that, when MG and MS were 0.90-1.10, C2AS and 2C2S·CS̄ could be chemically eliminated when microwave-sintered at low temperature; with the 1150°C/10 min sintering condition, microwave-prepared sample had developed into SAB cement clinker with the main phases of C4A3S and β-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.

AB - 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·CS̄) formation (MS) were put forward. The results indicated that, when MG and MS were 0.90-1.10, C2AS and 2C2S·CS̄ could be chemically eliminated when microwave-sintered at low temperature; with the 1150°C/10 min sintering condition, microwave-prepared sample had developed into SAB cement clinker with the main phases of C4A3S and β-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.

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UR - https://www.scopus.com/pages/publications/0035466133#tab=citedBy

U2 - 10.1016/S0008-8846(01)00579-8

DO - 10.1016/S0008-8846(01)00579-8

M3 - Article

AN - SCOPUS:0035466133

SN - 0008-8846

VL - 31

SP - 1257

EP - 1261

JO - Cement and Concrete Research

JF - Cement and Concrete Research

IS - 9

ER -

Microwave sintering of sulphoaluminate cement with utility wastes

Abstract

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