Innovative use of fly ash-finely powdered glass cullet as a nano additives for a sustainable concrete: Strength and microstructure and cost analysis

Amran, Mugahed; Onaizi, Ali M.; Qader, Diyar N.; Murali, G.

doi:10.1016/j.cscm.2022.e01688

Cited by 12 publications

(11 citation statements)

References 86 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Indeed, several research studies have shown that the use of these materials can improve the environmental footprint of construction projects while providing equivalent or superior mechanical performance [38]. In addition, these materials can contribute to the reduction of construction waste and the reclamation of salvaged materials [39].…”

Section: Environmental Impact and Cost Analysismentioning

confidence: 99%

The Impact of Brick Powder Specific Surface Area on Cement Replacement in Mortar Mixes: A Sustainable and Cost-effective Solution for the Construction Industry

Ben Abbou,

Aalil,

Cherkaoui

2023

Period. Polytech. Civil Eng.

View full text Add to dashboard Cite

This study examined the use of clay brick powder (CBP) as a partial substitute for cement in mortar mixes. Five mixes were tested, each differing by the fineness of the CBP, obtained by grinding brick waste for different durations (30, 60, 90, 120 minutes). Several parameters were evaluated; apparent density, porosity, spread, ultrasonic pulse velocity (UPV), flexural and compressive strength, and the pozzolanic activity index. The results indicate that, when the brick powder is ground for 60 minutes, the spread of the mortar exceeds 95% compared to the reference mortar. The addition of CBP appears to increase the water absorption and porosity of the mortars, without significantly influencing their apparent density. Most samples have a UPV close to 4000m/s, attesting to satisfactory mechanical properties. The use of 20% CBP in replacement of cement leads to a decrease in flexural strength. However, this drop is less when the specific surface area of the CBP is close to that of cement. As for compressive strength, a decrease is also noted with the introduction of CBP, but this decrease can be mitigated by using CBP with a specific surface area similar to that of cement. These factors can significantly influence the pozzolanic activity of the mortar mix. Furthermore, our investigations into environmental and economic analyses show that the use of cement mixes including CBP results in a significant decrease in energy consumption and CO2 emissions. More specifically, the replacement of 20% of cement with CBP of different granulometries has led to promising results.

show abstract

Section: Environmental Impact and Cost Analysismentioning

confidence: 99%

The Impact of Brick Powder Specific Surface Area on Cement Replacement in Mortar Mixes: A Sustainable and Cost-effective Solution for the Construction Industry

Ben Abbou,

Aalil,

Cherkaoui

2023

Period. Polytech. Civil Eng.

View full text Add to dashboard Cite

show abstract

“…Unfortunately, this highly useful construction material is still burdened with negative consequences resulting from the use of cement binders for its production [8][9][10]. The basic binder in concrete is ordinary Portland cement (OPC), the production of which is unfortunately the main contributor to greenhouse gas emissions, mainly CO2, associated with global warming and climate change on Earth [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

The Effect of the Addition of Coal Fly Ash (CFA) on the Control of Water Movement within the Structure of the Concrete

Golewski

2023

Materials

View full text Add to dashboard Cite

Studies were carried out to find a relation between the important physical property, i.e., water absorption and the main mechanical parameter, i.e., compressive strength (fcm), of concretes containing coal fly ash (CFA) in the amounts of 0% (CFA-00), 20% (CFA-20%), and 30% (CFA-30). The methodology of the water absorption tests reflected the conditions prevailing in the case of reinforced concrete structures operating below the water table. The microstructure of all materials was also assessed. Based on the conducted studies, it was found that both the fcm of concretes with the addition of CFA and its water absorption depended on the percentage of waste used, whereas both analyzed parameters were closely related to the structure of the cement matrix and interfacial transition zone area between the coarse aggregates and the paste. It should be stated that at the content of 20% CFA in the binder composition, an increase in the fcm of the material is observed, with a simultaneous increase in its water absorption. On the other hand, the addition of 30% CFA results in a significant decrease in both the strength of the composite and its water absorption. Thus, it was found that in the case of concretes with the addition of CFA, the strength of the material is directly proportional to the level of its water absorption. Moreover, the concrete including 30% CFA may increase the durability of reinforced concrete structures subjected to immersion conditions. From an application point of view, the obtained research results may be helpful in understanding the impact of the CFA additive on the level of water absorption in cement concretes with this waste.

show abstract

“…Nevertheless, this highly useful construction material is still burdened with negative consequences resulting from the use of cement binder for its production [16,17]. The basic binder in concrete is ordinary Portland cement (OPC), the production of which is unfortunately the main contributor to greenhouse gas (GHG) emissions, mainly CO 2 , associated with global warming and climate change on Earth [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Examination of water absorption of low volume fly ash concrete (LVFAC) under water immersion conditions

Golewski

2023

Mater. Res. Express

View full text Add to dashboard Cite

The studies were carried out to find a relation between important physical property and the main mechanical parameter of concretes containing fly ash (FA) in order to develop indications for the production of durable composites with the addition of this waste. The tests included low volume fly ash concrete (LVFAC). The cements used in the studies were following: ordinary Portland cement (OPC), (FA-00) and two blended Portland cements containing FA in the amount of: 20%, (FA-20) and 30% (FA-30). Measurements of water adsorption (wa) by immersion and compressive strength (fcm) of analysed composites have been performed. The methodology of the wa tests was to reflect the conditions prevailing in the case of concrete- and reinforced concrete structures operating below the water table. The microstructure of all three materials was also assessed. Test results indicated that LVFAC mixes developed 28-day fcm between 45.10 for FA-30 to 48.96 MPa for FA-20 with a value of 47.51 MPa for the reference concrete. Neverless wa of LVFAC mixes decreased with the increase in FA content. The average values of wa was 4.6% for FA-30 and 5.3% for FA-20, respectively, while for concrete without FA it was 5.0%. Thus, it was found that wa by immersion was inversely proportional to the fcm. Based on the microstructural studies it was found that this behavior is attributed to reduced pore diameters and densification of cement matrix microstructure in FA-30 concrete. On the other hand concrete of series FA-20 showed a loose and porous microstructure, and wa in this composite increased accordingly. It can be stated that, the LVFAC containing 30% FA may increase durability of reinforced concrete structures subjected to immersion conditions.

show abstract

Innovative use of fly ash-finely powdered glass cullet as a nano additives for a sustainable concrete: Strength and microstructure and cost analysis

Cited by 12 publications

References 86 publications

The Impact of Brick Powder Specific Surface Area on Cement Replacement in Mortar Mixes: A Sustainable and Cost-effective Solution for the Construction Industry

The Impact of Brick Powder Specific Surface Area on Cement Replacement in Mortar Mixes: A Sustainable and Cost-effective Solution for the Construction Industry

The Effect of the Addition of Coal Fly Ash (CFA) on the Control of Water Movement within the Structure of the Concrete

Examination of water absorption of low volume fly ash concrete (LVFAC) under water immersion conditions

Contact Info

Product

Resources

About