Development of sustainable alkali-activated bricks using industrial wastes

Gavali, Hindavi R.; Brás, Ana; Faria, Paulina; Ralegaonkar, Rahul V.

doi:10.1016/j.conbuildmat.2019.04.152

Cited by 82 publications

(28 citation statements)

References 34 publications

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“…Portland cementless alkali activated products are known to be sustainable and less costly. Especially geopolymeric bricks are seen as the most advantageous product since they can contain high amount of waste [12]. Agricultural wastes are also actively researched for the manufacture of sustainable building materials.…”

Section: Methodsmentioning

confidence: 99%

Environmental effects of utilization of sustainable building materials

Başyiğit

Alkayis

Kartli

2021

Heritage and Sustainable Development

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Migration is generally defined as a period of time or permanent settlement of people by moving from a place of origin to another place. Throughout history, humanity has migrated due to natural disasters, religion, poverty, wars and this migration has caused urbanization with population growth. With the increase in population, irregular and excessive migration, decrease in resources, unplanned urbanization, infrastructure problems, wastewater lines, drinking water lines, rainwater collection lines, power lines, and natural gas pipelines cannot be delivered to desired places, traffic, and excessive waste generation increased. Therefore environmental pollution and health problems arise in cities. Today, due to the adverse environmental impact of all these, people have become more sensitive and have tended to find solutions to the problem with areas such as sustainable structures, recycling, and reuse of waste. In this study, the studies and gains made with the recycling aggregate used are evaluated in order to produce solutions for environmental pollution caused by the construction sector.

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Section: Methodsmentioning

confidence: 99%

Environmental effects of utilization of sustainable building materials

Başyiğit

Alkayis

Kartli

2021

Heritage and Sustainable Development

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“…Using this waste will not only reduce the cost of concrete but will also have considerable positive environmental impacts [ 20 , 21 , 22 ]. Waste from timber [ 23 , 24 ], coal plants [ 25 ], marble [ 26 ], rubber [ 27 ], ceramic [ 28 , 29 , 30 ], and brick industries [ 31 , 32 , 33 , 34 ] has great potential to contribute to sustainable construction. Yearly, construction and demolition waste (C&DW) is generated around 3 billion tons worldwide [ 35 ].…”

Section: Introductionmentioning

confidence: 99%

Utilization of Solid Waste from Brick Industry and Hydrated Lime in Self-Compacting Cement Pastes

et al. 2021

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The huge amount of solid waste from the brick manufacturing industry can be used as a cement replacement. However, replacement exceeding 10% causes a reduction in strength due to the slowing of the pozzolanic reaction. Therefore, in this study, the pozzolanic potential of brick waste is enhanced using ultrafine brick powder with hydrated lime (HL). A total of six self-compacting paste mixes were studied. HL 2.5% by weight of binder was added in two formulations: 10% and 20% of waste burnt brick powder (WBBP), to activate the pozzolanic reaction. An increase in the water demand and setting time was observed by increasing the replacement percentage of WBBP. It was found that the mechanical properties of mixes containing 5% and 10% WBBP performed better than the control mix, while the mechanical properties of the mixes containing 20% WBBP were found to be almost equal to the control mix at 90 days. The addition of HL enhanced the early-age strength. Furthermore, WBBP formulations endorsed improvements in both durability and rheological properties, complemented by reduced early-age shrinkage. Overall, it was found that brick waste in ultrafine size has a very high degree of pozzolanic potential and can be effectively utilized as a supplementary cementitious material.

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“…The use of alkali-activated materials in the production of masonry blocks and bricks has been validated by several authors, such as the reviews by Gavali et al [ 12 ] and Deraman et al [ 13 ], with fly ash (FA) [ 14 , 15 , 16 ] being the most common primary precursor in these studies. Indeed, Ariöz et al [ 17 ] produced geopolymeric bricks with compressive strengths between 5 and 60 MPa from the alkaline activation (NaOH + Na 2 SiO 3 ) of FA by optimizing the heat curing process at 60 °C for 24 h. Gavali and Ralegaonkar [ 18 ] reported the production of solid bricks from the alkaline activation (NaOH + Na 2 SiO 3 ) of a mixture composed of 80% rice husk ash and 20% FA, with stone dust as a filler (precursor/filler ratios of 1:1, 1:2, and 1:3 (by weight)).…”

Section: Introductionmentioning

confidence: 99%

Eco-House Prototype Constructed with Alkali-Activated Blocks: Material Production, Characterization, Design, Construction, and Environmental Impact

et al. 2021

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The interest of the construction industry in alkali-activated materials has increased to the extent that these materials are recognized as alternatives to ordinary Portland cement-based materials in the quest for sustainable construction. This article presents the design and construction of a prototype of an eco-friendly house built from concrete blocks produced using alkali activation technology or geopolymerization. The prototype meets the requirements of the current Colombian Regulations for Earthquake Resistant Buildings (NSR-10) and includes standards related to the performance of the materials, design, and construction method for earthquake-resistant confined masonry of one- or two-story buildings. The alkali-activated blocks were obtained from different precursors (aluminosilicates), including a natural volcanic pozzolan, ground granulated blast furnace slag, fly ash, construction and demolition waste (concrete, ceramic, brick, and mortar), and red clay brick waste. The physical-mechanical characterization of the alkali-activated blocks allowed their classification according to the structural specifications of the Colombian Technical Standard NTC 4026 (equivalent to ASTM C90). The global warming potential (GWP) or “carbon footprint” attributed to the raw materials of alkali-activated blocks was lower (25.4–54.7%) than that of the reference blocks (ordinary Portland cement concrete blocks). These results demonstrate the potential of alkali-activated materials for application in the construction of eco-friendly houses.

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Development of sustainable alkali-activated bricks using industrial wastes

Cited by 82 publications

References 34 publications

Environmental effects of utilization of sustainable building materials

Environmental effects of utilization of sustainable building materials

Utilization of Solid Waste from Brick Industry and Hydrated Lime in Self-Compacting Cement Pastes

Eco-House Prototype Constructed with Alkali-Activated Blocks: Material Production, Characterization, Design, Construction, and Environmental Impact

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