Development of Alkali Activated Geopolymer Masonry Blocks

Venugopal, K R; Radhakrishna, .; Sasalatti, Vinod

doi:10.1088/1757-899x/149/1/012072

Cited by 17 publications

(10 citation statements)

References 4 publications

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“…If these results are compared with those reported by other authors for alkali-activated blocks based on FA (see Introduction Section), it is found that, in general, the results are satisfactory. For example, the compressive strength of FA blocks (23.9 MPa) is superior to the results reported by Poinot et al [ 23 ] (11–15 MPa) and Venugopal et al [ 24 ] (5–25 MPa).…”

Section: Results and Analysiscontrasting

confidence: 60%

“…Poinot et al [ 23 ] were able to obtain alkali-activated bricks (NaOH) from a mixture composed of 70% FA, 20% clay, and 10% hydrated lime (as a source of calcium) with strengths between 11 and 15 MPa at 28 days. Venugopal et al [ 24 ] manufactured alkali-activated bricks (solid and hollow) from a mixture of FA (80%) and granulated blast furnace slag (GBFS) (20%) (as a source of calcium). In these mixtures, NaOH and Na 2 SiO 3 were used as alkaline activators and fine aggregates with an FA–GBFS/sand ratio of 1:1 (by weight).…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Results and Analysiscontrasting

confidence: 60%

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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“…In some studies [91,92], chemical binders were also used to produce waste incorporated unfired 268 bricks, but because these studies did not focus on the mix optimization, so they are not included found. Therefore, a brief review on the effect of mixing strategy for other construction materials 317 has been added to provide useful insights to the importance of mixing strategy.…”

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confidence: 99%

A state of the art review to enhance the industrial scale waste utilization in sustainable unfired bricks

Gupta

Chai

et al. 2020

Construction and Building Materials

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Manufacturing of unfired bricks, in which fines are stabilized using cementitious or chemical 12 binders, has huge potential to incorporate various wastes as a building construction material. 13Although researchers have successfully attempted various wastes in unfired bricks at the 14 laboratory scale, their industrial-scale incorporation is still limited and unexplored. From an 15 industrial point of view, mix proportions, mixing strategies, molding methods, and curing 16 conditions are of equal importance. However, the unavailability of comprehensive knowledge 17 related to manufacturing aspects hampers the industrial-scale implementation of research 18 outcomes regarding waste incorporation in unfired bricks. This study summarizes the research 19 outcomes related to waste incorporated unfired bricks, highlighting the manufacturing aspects 20 from the industrial point of view. In this paper, mix proportions attempted, approaches for 21 selecting the liquid content, adopted mixing strategies, compaction parameters, and curing 22 conditions in previous studies are discussed for various waste incorporated bricks. Studies are 23 classified based on the binder used for stabilization, and the effects of influencing parameters on 24 the mechanical performance of bricks are discussed in detail. Furthermore, some industrial 25 challenges related to unfired brick production in Indian scenario are discussed. Studies related to 26 mixture proportioning, mixing optimization and hybrid curing development for a multi-waste 27 incorporated system are expected to be future research trend for waste stabilization in unfired 28 bricks. The comprehensive knowledge presented here is expected to support in the selection of 29 suitable manufacturing aspects, which in turn enhances the waste utilization in unfired bricks at 30 an industrial scale.

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“…In addition, this method helps lessen energy needs since it requires less burning and makes more efficient use of resources for trash disposal. Bricks have been made of a variety of byproducts, including fly ash, slags, mine tailings, rice husk ash, cotton waste, oyster shell, and wood sawdust [166][167][168][169][170][171][172][173][174][175][176][177][178].…”

Section: 35mentioning

confidence: 99%

Energy Efficiency Coupled with Lightweight Bricks: Towards Sustainable Building: A review

Tarek

El-Naggar

Sameh

et al. 2023

SVU-International Journal of Engineering Sciences and Applicati

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This study investigates energy use in the construction sector and the potential for reducing energy consumption by improving the thermal efficiency of various building components, including walls, windows, roofs, and floors. The evaluation included a discussion on the prospects of reducing energy use. The building envelope is one of the most important factors to consider in terms of the heating and cooling energy efficiency of buildings. Walls are the fundamental component of a building's envelope and should provide thermal and acoustic comfort without compromising the aesthetic features of the building. The walls have a heat transfer area that is substantially higher than average, and the amount of heat gained or lost depends on the temperatures of the wall's inner and outside surface areas. Therefore, walls have a vital role in reducing the energy consumption of buildings. Bricks are a necessary component of highperformance thermal insulation, and lightweight bricks are especially useful in this regard. Bricks that are specifically manufactured for use in wall construction play an essential role in the management of energy consumption. The study has, as a result, provided a synopsis of the production of lightweight bricks in accordance with the source of the raw materials (e.g. Agriculture and industrial waste, etc).

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Development of Alkali Activated Geopolymer Masonry Blocks

Cited by 17 publications

References 4 publications

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

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

A state of the art review to enhance the industrial scale waste utilization in sustainable unfired bricks

Energy Efficiency Coupled with Lightweight Bricks: Towards Sustainable Building: A review

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