Asset Details
Do you wish to reserve the book?
Maximize the use of municipal waste generated by the hydrogen peroxide industry in the production of high-quality refractory CAC
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Maximize the use of municipal waste generated by the hydrogen peroxide industry in the production of high-quality refractory CAC
Do you wish to request the book?
Maximize the use of municipal waste generated by the hydrogen peroxide industry in the production of high-quality refractory CAC
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Maximize the use of municipal waste generated by the hydrogen peroxide industry in the production of high-quality refractory CAC
2022
Overview
High-grade calcium aluminate cement (CAC) has been successfully synthesized from municipal alumina waste and limestone under mild reaction conditions. Mineralogical composition and microstructure of the sintered mixes were investigated using X-ray diffraction and FESEM; valuable cementing phases such as CA, CA
2
, and C
12
A
7
were observed in addition to the C
3
A phase that was detected in the mixes with high CaCO
3
content. Mix CA60 containing 60 wt% alumina waste has achieved the best sinterability (less than 1 vol% porosity) and the highest densification (~ 2.65 g/cm
3
bulk density) at 1450 °C. Densification, cold-crushing strength (CCS), and microstructure of the hydrated cement samples (From Mix CA60) were investigated. The cast cement specimens revealed better density and CCS characteristics (63.1 and 74 MPa at 7 and 28 days, respectively) in comparison with the commercial cement. Conventional castables (5 × 5 × 5 cm
3
) were prepared from mixtures composed of 15 wt% cement and 85 wt% aggregates (40% Al
2
O
3
), where CA60 and commercial cement were used to compare the effect of the manufactured CA60 cement with the commercial one. The castables prepared with CA60 cement have shown a higher strength at 110 °C with 4.5 MPa when compared to the commercial CAC at the same temperature (1.8 MPa). Accordingly, this study contributes not only to preserving the environment from the accumulation of industrial wastes but also to valorizing and adding value to these wastes.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
