Strength performance of fly ash and slag mixtures using gypsum

S. Karami; Peter A. Claisse; Eshmaiel Ganjian; Homayoon Sadeghi-Pouya

doi:10.1680/coma.11.00026

Strength performance of fly ash and slag mixtures using gypsum

S. Karami, Peter A. Claisse, Eshmaiel Ganjian, Homayoon Sadeghi-Pouya

Research output: Contribution to journal › Article

2 Citations (Scopus)

56 Downloads (Pure)

Abstract

The lower environmental impact and economic cost of cements made from waste materials makes them an attractive alternative to Portland cement. This research was undertaken to study the performance of cement made by sulfate activation of a basic oxygen slag and run-of-station ash blended with red gypsum and plasterboard gypsum. Two-component and three-component mixes were tested as part of a systematic process of optimising for strength. All mixes had similar water to binder (w/b) ratio 0·3. The results showed plasterboard gypsum and red gypsum can be used with sulfate to form a sulfate-activated pozzolan basic oxygen slag run-of-station ash binder. Sample solutions were collected from a high-pressure through-flow test and analysed using inductive coupled plasma to measure the risk of leaching of heavy metals.

Original language	English
Pages (from-to)	80–88
Journal	Proceedings of the ICE - Construction Materials
Volume	166
Issue number	2
DOIs	https://doi.org/10.1680/coma.11.00026
Publication status	Published - 2012

Bibliographical note

Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees. The journal homepage can be found at http://www.constructionmaterialsjournal.com.

Keywords

sustainability
strength and testing of materials
concrete technology & manufacture

Access to Document

10.1680/coma.11.00026

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title = "Strength performance of fly ash and slag mixtures using gypsum",

abstract = "The lower environmental impact and economic cost of cements made from waste materials makes them an attractive alternative to Portland cement. This research was undertaken to study the performance of cement made by sulfate activation of a basic oxygen slag and run-of-station ash blended with red gypsum and plasterboard gypsum. Two-component and three-component mixes were tested as part of a systematic process of optimising for strength. All mixes had similar water to binder (w/b) ratio 0·3. The results showed plasterboard gypsum and red gypsum can be used with sulfate to form a sulfate-activated pozzolan basic oxygen slag run-of-station ash binder. Sample solutions were collected from a high-pressure through-flow test and analysed using inductive coupled plasma to measure the risk of leaching of heavy metals. ",

keywords = "sustainability, strength and testing of materials, concrete technology & manufacture",

author = "S. Karami and Claisse, {Peter A.} and Eshmaiel Ganjian and Homayoon Sadeghi-Pouya",

note = "Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees. The journal homepage can be found at http://www.constructionmaterialsjournal.com.",

year = "2012",

doi = "10.1680/coma.11.00026",

language = "English",

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T1 - Strength performance of fly ash and slag mixtures using gypsum

AU - Karami, S.

AU - Claisse, Peter A.

AU - Ganjian, Eshmaiel

AU - Sadeghi-Pouya, Homayoon

N1 - Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees. The journal homepage can be found at http://www.constructionmaterialsjournal.com.

PY - 2012

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N2 - The lower environmental impact and economic cost of cements made from waste materials makes them an attractive alternative to Portland cement. This research was undertaken to study the performance of cement made by sulfate activation of a basic oxygen slag and run-of-station ash blended with red gypsum and plasterboard gypsum. Two-component and three-component mixes were tested as part of a systematic process of optimising for strength. All mixes had similar water to binder (w/b) ratio 0·3. The results showed plasterboard gypsum and red gypsum can be used with sulfate to form a sulfate-activated pozzolan basic oxygen slag run-of-station ash binder. Sample solutions were collected from a high-pressure through-flow test and analysed using inductive coupled plasma to measure the risk of leaching of heavy metals.

AB - The lower environmental impact and economic cost of cements made from waste materials makes them an attractive alternative to Portland cement. This research was undertaken to study the performance of cement made by sulfate activation of a basic oxygen slag and run-of-station ash blended with red gypsum and plasterboard gypsum. Two-component and three-component mixes were tested as part of a systematic process of optimising for strength. All mixes had similar water to binder (w/b) ratio 0·3. The results showed plasterboard gypsum and red gypsum can be used with sulfate to form a sulfate-activated pozzolan basic oxygen slag run-of-station ash binder. Sample solutions were collected from a high-pressure through-flow test and analysed using inductive coupled plasma to measure the risk of leaching of heavy metals.

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KW - concrete technology & manufacture

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