Improving corrosion resistance of steel rebars in concrete with marble and granite waste dust as partial cement replacement

Ghorbani, Saeid; Taji, Iman; Tavakkolizadeh, Mohammadreza; Davodi, Ali; Brito, Jorge de

doi:10.1016/j.conbuildmat.2018.07.066

Cited by 95 publications

(41 citation statements)

References 43 publications

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“…The current experiment shows that the addition of the SD of up to 10 %wt as a replacement of natural sands improves the performance. This performance is consistent with the previous result without considering the cement replacement level [8,57]. However, a further addition of the SD may cause agglomeration and porous structure, which weaken the concrete.…”

Section: Comparison Of Resultssupporting

confidence: 92%

“…The replacement of natural sands by the SD caused an improvement in the strength of concrete. This finding agrees well with those in current studies [8,43,57]. The lost strength of the FA and RHA added concrete compared to the control have been recovered, to some extent, after the addition of the SD in the mix.…”

Section: Compressive Strengthsupporting

confidence: 93%

“…Therefore, the optimization of the uses of cement and natural sands in concrete is a priority. Many available by-products and waste materials can be used in concrete, such as the FA, RHA, palm oil fuel ash, limestone waste, SD, slag, silica fume, fibres, glass and rubber waste [3,[7][8][9][10][11][12][13][14][15]. The use of these by-products in concrete for waste management not only reduces the material cost but also the waste management cost [2,11,16].…”

Section: Introductionmentioning

confidence: 99%

“…The SD is being produced from stone quarries in a large amount during the processing of stone aggregates. These waste products can be an excellent alternative to natural sands [5] or cement [8] in concrete and can help to develop a sustainable green concrete [40]. The highly fine silica content in the SD increases the amorphous content and filler activity, which increase the density of a concrete mix up to a certain limit of replacement.…”

Section: Introductionmentioning

confidence: 99%

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Performance of Sustainable Green Concrete Incorporated With Fly Ash, Rice Husk Ash, and Stone Dust

et al. 2021

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The performance of a sustainable green concrete with fly ash (FA), rice husk ash (RHA), and stone dust (SD) as a partial replacement of cement and sand was experimentally explored. FA and RHA have a high silica content, are highly pozzolanic in nature and have a high surface area without any treatment. These by-products show filler effects, which enhance concrete’s density. Results showed that the FA and RHA materials have good hydration behaviour and effectively develop strength at an early age of concrete. SD acts as a stress transferring medium within concrete, thereby allowing the concrete to be stronger in compression, and bending. Consequently, water absorption capacity of the sustainable concrete was lower than that of the ordinary one. However, a little reduction in strength was observed after the replacement of the binder and aggregate using the FA, RHA and SD, but the reduction was insignificant. The reinforced structure with sustainable concrete containing the FA, RHA, and SD generally fails in concrete crushing tests initiated by flexural cracking followed by shear cracks. The sustainable concrete could be categorized as a perfect material with no significant conciliation in strength properties and can be applied to design under-reinforced elements for a low-to-moderate service load.

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Section: Comparison Of Resultssupporting

confidence: 92%

Section: Compressive Strengthsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance of Sustainable Green Concrete Incorporated With Fly Ash, Rice Husk Ash, and Stone Dust

et al. 2021

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“…The most frequently employed SCMs in the cement industry are discussed below: fly ash (FA) and/or ultrafine fly ash (UFFA) [35], silica fume (SF) [36,37] and natural pozzolanic materials like rice husk ash (RHA) [38][39][40], sugarcane bagasse ash (SBA) [41][42][43], sewage sludge ash (SSA) [44,45], palm oil fuel ash (POFA) [46][47][48][49], mine tailings [50][51][52][53], marble dust [54][55][56][57][58], construction and demolition debris (CDD) [59][60][61].…”

Section: Supplementary Cementitious Materials (Scms)mentioning

confidence: 99%

End-of-Life Materials Used as Supplementary Cementitious Materials in the Concrete Industry

et al. 2020

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A sustainable solution for the global construction industry can be partial substitution of Ordinary Portland Cement (OPC) by use of supplementary cementitious materials (SCMs) sourced from industrial end-of-life (EOL) products that contain calcareous, siliceous and aluminous materials. Candidate EOL materials include fly ash (FA), silica fume (SF), natural pozzolanic materials like sugarcane bagasse ash (SBA), palm oil fuel ash (POFA), rice husk ash (RHA), mine tailings, marble dust, construction and demolition debris (CDD). Studies have revealed these materials to be cementitious and/or pozzolanic in nature. Their use as SCMs would decrease the amount of cement used in the production of concrete, decreasing carbon emissions associated with cement production. In addition to cement substitution, EOL products as SCMs have also served as coarse and also fine aggregates in the production of eco-friendly concretes.

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Development of an artificial neural network model to predict waste marble powder demand in eco‐efficient self‐compacting concrete

Ulas

2022

Structural Concrete

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The marble industry produces large amount of waste at almost every stage of marble processing. This waste is always uncontrollably discharged into open areas. Therefore, the consumption of Waste Marble Powder (WMP) in concrete is very important and will provide both an economic gain for concrete industries and an opportunity to achieve eco-efficient concrete production. Self-Compacting Concrete (SCC) is mostly preferred concrete type which uses the WMP as powdered material. Thus, to increase WMP usage in the production of eco-efficient SCC, it is aimed in this study to develop a model that can predict WMP demand. To develop this model, Artificial Neural Network (ANN), an artificial intelligence method, was preferred. An ANN model was developed using a comprehensive dataset that included eco-efficient SCC mixture compositions, workability measurements, and compressive strengths. The ANN model with seven inputs and one output as WMP was successfully trained and managed to produce the correct outputs to both validation and test datasets.Mix design of SCC with aimed properties can be a long process compared to conventional concrete. The proposed ANN model could reduce time loss in the production process. ANN's success is expected to facilitate the production of eco-efficient SCC with WMP.

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Improving corrosion resistance of steel rebars in concrete with marble and granite waste dust as partial cement replacement

Cited by 95 publications

References 43 publications

Performance of Sustainable Green Concrete Incorporated With Fly Ash, Rice Husk Ash, and Stone Dust

Performance of Sustainable Green Concrete Incorporated With Fly Ash, Rice Husk Ash, and Stone Dust

End-of-Life Materials Used as Supplementary Cementitious Materials in the Concrete Industry

Development of an artificial neural network model to predict waste marble powder demand in eco‐efficient self‐compacting concrete

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