An overview of waste materials recycling in the Sultanate of Oman

Taha, Ramzi; Al-Rawas, A. D.; Al‐Jabri, Khalifa; Al-Harthy, Ali; Hassan, Hossam F.; Al-Oraimi, Salim

doi:10.1016/j.resconrec.2003.10.005

Cited by 64 publications

(22 citation statements)

References 8 publications

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“…Looking into the literature, it is seen that most researchers use much lower replacement levels of up to 15 wt% (Al-Jabri et al 2006;Shi et al 2008;Taha et al 2004;Tixier et al 1997;Zain et al 2004). Their conclusion is that the effect of using copper slag on compressive strength is limited, and only in some cases small improvements were noticed.…”

Section: Copper Slag As Cement Replacementmentioning

confidence: 99%

“…Their conclusion is that the effect of using copper slag on compressive strength is limited, and only in some cases small improvements were noticed. Some researchers used activators such as cement by-pass dust and/or lime, which had no effect (Al-Jabri et al 2006) or only a limited effect (Taha et al 2004). In Tixier et al (1997), a positive effect on the compressive strength from adding copper slag was noticed.…”

Section: Copper Slag As Cement Replacementmentioning

confidence: 99%

“…One of the greatest potential applications is in cement and concrete (Shi et al 2008). In cement production, it can be used as an iron adjusting material or as partial cement replacement (Al-Jabri et al 2006;Goñi et al 1994;Gorai et al 2003;Najimi et al 2011;Shi et al 2008;Taha et al 2004Taha et al , 2007Tixier et al 1997;Zain et al 2004). Regarding the latter, a major concern is the leaching of heavy metals; however, studies have shown that this is within regulatory limits.…”

Section: Introductionmentioning

confidence: 99%

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Use of Secondary Slags in Completely Recyclable Concrete

Schepper

Verlé

Driessche

et al. 2015

J. Mater. Civ. Eng.

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A completely recyclable concrete (CRC) is designed to have a chemical composition equivalent to the one of general raw materials for cement production. By doing so, this CRC can be used at the end of its service life in the cement clinkering process without need for ingredient adjustments, and with improvement of the resource efficiency of cement and concrete production. Copper slag is interesting as an iron source for the production of such a CRC and can be added to concrete, either as alternative binder or as aggregate. By isothermal calorimetry and compressive strength tests it was found that the addition of copper slag as cement replacement is of minor interest. But a study toward the compressive strength and durability of concrete with copper slag as aggregate replacement had promising results. The performance of these concretes was comparable with or even better than the reference concrete, regarding strength and most durability aspects such as porosity and permeability, and resistance against carbonation and chloride ingress. Only the resistance to freezethaw attack with deicing agents was inferior.

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Section: Copper Slag As Cement Replacementmentioning

confidence: 99%

Section: Copper Slag As Cement Replacementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Use of Secondary Slags in Completely Recyclable Concrete

Schepper

Verlé

Driessche

et al. 2015

J. Mater. Civ. Eng.

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“…Various ferrous and non-ferrous slag (for example, copper slag (Taha et al 2004;Kumar 2013), zinc slag, phosphorus slag (Qian et al 2013) etc.) materials have been used as replacement of aggregates in pavement base/sub-base (Han 1993;Motz and Geiseler 2001).…”

Section: Ferrous and Non-ferrous Slagmentioning

confidence: 99%

“…The list is definitely not exhaustive (Krishnaswamy and Das 2012). There are many other waste materials with a possible application potential in highway construction, for example, andesite waste (Uzun and Terzi 2012), baghouse fines (FHWA 2013), e-waste plastics (Colbert et al 2013), excavation waste (Arulrajah et al 2012a), cement kiln dust (Taha 2003;Taha et al 2004), lime kiln dust (Griffiths and Krstulovich Jr 2002), oil shale waste, wastes from phosphate and aluminum industry (CEMP 1999;Misra et al 2004), waste lime from glass and detergent industry (Do et al 2008), sludge from paper industry, spray drier fly ash, silica fume (CEMP 1999), sulphate waste (CEMP 1999; Stroup-Gardiner and Wattenberg-Komas 2013a), used engine oil (Hamad et al 2003;Sherwood 1995) and so on. The list is ever expanding.…”

Section: Closurementioning

confidence: 99%

Reclaimed Waste Materials in Sustainable Pavement Construction

Das

Swamy

2014

Climate Change, Energy, Sustainability and Pavements

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This chapter provides an in-depth but brief overview on the possible use of various waste materials for sustainable pavement construction. It compiles a literature review on the research done on such materials and highlights the current issues. IntroductionPavement construction involves consumption of large quantity of construction materials. Some of these construction materials are available in natural form and some are manufactured (from naturally occurring raw materials). Due to the rapid growth of infrastructure, naturally available good quality construction materials are gradually becoming scarce. Consequently, there is an increase in the transportation cost for acquiring good quality materials. Thus, there is a need to develop or search for alternative materials for road construction.On the other hand, large quantity of byproducts are generated from agricultural, construction and demolition, industrial and domestic sources (Aravind and Das

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