Reuse of waste bricks: a new generation of geopolymer bricks

Youssef, Nicolas; Rabenantoandro, Andry Zaid; Dakhli, Zakaria; Chapiseau, Christophe; Waendendries, François; Chehade, Fadi Hage; Lafhaj, Zoubeir

doi:10.1007/s42452-019-1209-6

Cited by 36 publications

(17 citation statements)

References 46 publications

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“…Clay brick wastes (CBW) represent a valuable secondary resource for concrete manufacturing, either as a coarse or fine aggregate in concrete production, or as a supplementary cementitious material [10,11]. Recently, an interesting alternative has been reported: the development of alternative low-carbon binders (alkali-activated materials, geopolymers, and calcium sulfoaluminate cement) [12,13]. Geopolymers are obtained through a chemical reaction, starting with an alumino-silicate powder with a highly concentrated aqueous alkali hydroxide and/or silicate solution, to the production of a synthetic amorphous-tosemicrystalline alkali alumino-silicate new phase [14,15].…”

Section: Introductionmentioning

confidence: 99%

Crushed Bricks: Demolition Waste as a Sustainable Raw Material for Geopolymers

et al. 2021

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Demolition activity plays an important role in the total energy consumption of the construction industry in the European Union. The indiscriminate use of non-renewable raw materials, energy consumption, and unsustainable design has led to a redefinition of the criteria to ensure environmental protection. This article introduces an experimental plan that determines the viability of a new type of construction material, obtained from crushed brick waste, to be introduced into the construction market. The potential of crushed brick waste as a raw material in the production of building precast products, obtained by curing a geopolymeric blend at 60 °C for 3 days, has been exploited. Geopolymers represent an important alternative in reducing emissions and energy consumption, whilst, at the same time, achieving a considerable mechanical performance. The results obtained from this study show that the geopolymers produced from crushed brick were characterized by good properties in terms of open porosity, water absorption, mechanical strength, and surface resistance values when compared to building materials produced using traditional technologies.

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Section: Introductionmentioning

confidence: 99%

Crushed Bricks: Demolition Waste as a Sustainable Raw Material for Geopolymers

et al. 2021

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“…A maximum compressive strength of 89.91 MPa was obtained for a GGBFS/WB ratio of 80/20, an 8 M NaOH molarity, and a silicate/hydroxide ratio of 2/1. Comparably, for a GGBFS/WB ratio of 0/100 and analogous conditions, the compressive and flexural strength reached 38.96 MPa and 7.30 MPa, respectively [23].…”

Section: Introductionmentioning

confidence: 89%

“…Youssef et al [23] examined the potential for reuse of waste brick (WB) by alkaline activation in a new geopolymer brick. Brick manufacturing was achieved by mixing WBs, ground granulate blast furnace slag (GGBFS), and sand with a solution of hydroxide and sodium silicate.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Mechanical Properties and Microstructure of Construction- and Demolition-Waste-Based Geopolymers

et al. 2022

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Construction and demolition waste (CDW) is the third-most abundant waste generated annually in the countries of the European Union. One of the alternatives to the use of these wastes is geopolymeric materials. Partial replacement of commonly used raw materials for the production of these materials can help reduce the number of landfills and the consumption of natural resources. In this study, the authors partially replaced metakaolin and fly ash with clay bricks and concrete debris. The research method in article is connected with analysis of microstructures and the mechanical and physical properties of the geopolymers. The results obtained show the possibility of manufacturing useful construction materials based on industrial byproducts (fly ash) and CDW. Compressive strength and flexural strength were, for samples containing metakaolin, 20.1 MPa and 5.3 MPa, respectively. Geopolymers containing fly ash displayed 19.7 MPa of compressive strength and 3.0 MPa of flexural strength. The results for both synthesized materials give them perspectives for future applications in the construction industry.

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“…Simultaneously, a geopolymer material, which has considerable durability [19] and excellent mechanical properties [20,21], is favorable for making bricks. In related studies of geopolymer bricks, several materials have been utilized, such as 800°C fired ceramic wall dust [22], waste bricks [23], residual rice husk [24], and copper mine tailing [25]. Moreover, Madani et al [26] explored the feasibility of utilizing the wasted material of aggregates such as an alkaline solution with a different ratio of NaOH and Ca(OH) 2 ; the compressive strength of the press-forming mortar can reach 75 MPa after 4 days by curing at 105°C.…”

Section: Introductionmentioning

confidence: 99%

Feasibility Study on Fabrication of Geopolymer Bricks by Wasted Grinding Wheel at Room Temperature

Hsieh¹,

Cheng²,

Wu³

2020

Journal of Renewable Materials

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In this study, the feasibility of producing eco-friendly bricks by using geopolymer technology and a waste grinding wheel (WGW) from the grinding wheel industries was investigated. Nowadays, in order to meet industrial needs, for instance, in Taiwan, approximately 500,000 grinding wheels are used annually. That is, a large number of "waste" grinding wheels are produced. Furthermore, few studies have been conducted on the use of WGWs as raw materials in geopolymer applications. The use of geopolymer technology to form bricks can avoid the utilization of clay and cement and even prevent the use of a high-temperature process in kilns. Moreover, it can decrease CO 2 emission and energy consumption and thus, protect the environment. In this study, the following three major factors were considered: press-forming pressure (70 and 100 kgf/cm 2 ), NaOH molar concentration (2 and 4M), and the ratio of binder fineaggregate (1:3, 1:4, and 1:5). Under these conditions, the specimens were tested using the compressive strength test, water absorption test, microstructure analysis, a freezing-thawing test and toxicity characteristic leaching procedure test. The optimal formulation was composed of 1:4 binder fine-aggregate ratio, 4M NaOH concentration, and 100-kgf/cm 2 pressure. Furthermore, we used a WGW and achieved a compressive strength of 50.6 MPa after 28 days, which was greater than 32 MPa and conformed to the Grade A brick standard of National Standards of the Republic of China (13295). In conclusion, this brick fabrication method based on geopolymer technology was not only beneficial to the environment but also improved the efficiency of reutilizing WGW.

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Reuse of waste bricks: a new generation of geopolymer bricks

Cited by 36 publications

References 46 publications

Crushed Bricks: Demolition Waste as a Sustainable Raw Material for Geopolymers

Crushed Bricks: Demolition Waste as a Sustainable Raw Material for Geopolymers

Investigation of Mechanical Properties and Microstructure of Construction- and Demolition-Waste-Based Geopolymers

Feasibility Study on Fabrication of Geopolymer Bricks by Wasted Grinding Wheel at Room Temperature

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