Alkali-activated mortars blended with glass bottle waste nano powder: Environmental benefit and sustainability

Huseien, Ghasan Fahim; Hamzah, Hussein K.; Sam, Abdul Rahman Mohd; Khalid, Nur Hafizah A.; Shah, Kwok Wei; Deogrescu, Dan Paul; Mirza, Jahangir

doi:10.1016/j.jclepro.2019.118636

Cited by 121 publications

(45 citation statements)

References 58 publications

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“…The increase in the level of nano-silica up to 10% improved mortar compressive strength, but it decreased it at concentrations higher than 10% [48,55]. The results indicated that the compressive strength enhanced by including the nano-silica in AAMs mixtures, which is in agreement with the findings of previous studies [46,59,60]. Other research [41,43] indicated that reduced water assimilation and improved structural density, thus affording greater compressive strength, could be achieved by adding 4.0%-6.0% nano-silica by the weight of FA.…”

Section: Compressive Strengthsupporting

confidence: 91%

“…Even high-grade concrete can perform significantly better when nano-silica is added. In fact, the addition of a proportion of 6% nano-silica is enough to attain marked increases in performance [43,46]. The incorporation of nano-silica affects mainly the process of hydration, which is sped up, fostering a greater production of calcium silicate hydrates as nano-silica reacts with the calcium hydroxide in the concrete.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Glass Silica Waste Nano Powder on the Mechanical and Microstructure Properties of Alkali-Activated Mortars

et al. 2020

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The recycling of millions of tons of glass bottle waste produced each year is far from optimal. In the present work, ground blast furnace slag (GBFS) was substituted in fly ash-based alkali-activated mortars (AAMs) for the purpose of preparing glass bottle waste nano-powder (BGWNP). The AAMs mixed with BGWNP were subsequently subjected to assessment in terms of their energy consumption, economic viability, and mechanical and chemical qualities. Besides affording AAMs better mechanical qualities and making them more durable, waste recycling was also observed to diminish the emissions of carbon dioxide. A more than 6% decrease in carbon dioxide emissions, an over 16% increase in compressive strength, better durability and lower water absorption were demonstrated by AAM consisting of 5% BGWNP as a GBFS substitute. By contrast, lower strength was exhibited by AAM comprising 10% BGWNP. The conclusion reached was that the AAMs produced with BGWNP attenuated the effects of global warming and thus were environmentally advantageous. This could mean that glass waste, inadequate for reuse in glass manufacturing, could be given a second life rather than being disposed of in landfills, which is significant as concrete remains the most commonplace synthetic material throughout the world.

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Section: Compressive Strengthsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Influence of Glass Silica Waste Nano Powder on the Mechanical and Microstructure Properties of Alkali-Activated Mortars

et al. 2020

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“…We focused on determining the possibility of POFA reacting with an activator additive to achieve cementitious properties. Our findings can also indicate whether or not POFA should be categorised as a toxic waste material [ 34 ]. X-ray diffraction revealed that the matrix of POFA contained predominantly quartz (SiO 2 ), kyanite (Al 2 O(SiO 4 )), and gehlenite (Ca 2 Al(AlSiO 2 )) as the primary crystalline phases of the material ( Figure 4 ).…”

Section: Experimental Methodsmentioning

confidence: 99%

Influence of Liquid-to-Solid and Alkaline Activator (Sodium Silicate to Sodium Hydroxide) Ratios on Fresh and Hardened Properties of Alkali-Activated Palm Oil Fuel Ash Geopolymer

2021

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Malaysia is one of the largest palm oil producers in the world and its palm oil industry is predicted to generate a large amount of waste, which increases the need to modify it for sustainable reuse. The green geopolymers produced from industrial waste can be a potential substitute for cementitious binders. This type of polymer helps reduce dependency on cement, a material that causes environmental problems due to its high carbon emissions. Palm oil fuel ash (POFA) geopolymer has been widely investigated for its use as a sustainable construction material. However, there is still uncertainty regarding the total replacement of cement with POFA geopolymer as a binder. In this study, we examined the effects of different material design parameters on the performance of a POFA-based geopolymer as a building material product through iterations of mixture optimisation. The material assessed was a single raw precursor material (POFA) activated by an alkaline activator (a combination of sodium hydroxide and sodium silicate with constant concentration) and homogenised. We conducted a physical property test, compressive strength test, and chemical composition and microstructural analyses to evaluate the performance of the alkali-activated POFA geopolymer at 7 and 28 days. According to the results, the optimum parameters for the production of alkali-activated POFA paste binder are 0.6 liquid-to-solid ratio and 2.5 alkaline activator ratio. Our results show that the use of alkali-activated POFA geopolymer is technically feasible, offering a sustainable and environmentally friendly alternative for POFA disposal.

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“…The focus of the research was to assess sustainability as well as the indoor thermal performance of the low-cost housing scheme. Fiber reinforced mortar (FRM) and thermally enhanced sustainable hybrid (TESH) bricks have been produced by refining the mixing design utilizing Glass Powder, Palm Oil Fly Ash and Oil Palm Fibers [51]. The FRM and TESH bricks, which are part of the TESH wall framework, have been analyzed for physical, mechanical, and thermal efficiency and conform with the different standards of conduct for construction materials [44].…”

Section: Literature Reviewmentioning

confidence: 99%

Materializing Low-Cost Energy-Efficient Residential Utility through Effective Space Design and Masonry Technique - A Practical Approach

Bukhari¹,

Alaloul²,

Musarat³

et al. 2021

cea

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The swiftly mounting world energy consumption has sparked questions regarding supply constraints, the collapse of energy resources, and dense environmental effects. Although the construction industry has much developed, yet construction is still a difficult, and costly process. Consequently, there is a necessity to find additional energy-efficient and cost-saving substitutes to sustain the urbanization of houses at a reasonable price to low-income groups. This study aims to provide an energy-efficient proposal for a housing scheme with strict control over cost allowing the low-income groups to enjoy livability stemming from the thermally comfortable and cost-saving technology. For this purpose, visits and surveys were carried out to critically analyze the respective housing scheme. Two proposals were suggested i.e. Proposal A by applying a low-cost technique called a Rat-trap bond to the walls and Proposal B, by designing an architectural plan for proficient utilization of space along with Rat-trap bond. Proposal B is highly recommended for construction as it saves 799 units of electricity and is 28% cost-effective during the construction phase than the existing housing unit. Summarized results were prepared from cost analysis and Ecotect analysis which ascertains the proposal to be energy efficient in addition to low cost. It is recommended to invest in cost-effective and energy-efficient technologies at the governmental level so that the challenge of inadequate housing can be answered once and for all.

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Alkali-activated mortars blended with glass bottle waste nano powder: Environmental benefit and sustainability

Cited by 121 publications

References 58 publications

Influence of Glass Silica Waste Nano Powder on the Mechanical and Microstructure Properties of Alkali-Activated Mortars

Influence of Glass Silica Waste Nano Powder on the Mechanical and Microstructure Properties of Alkali-Activated Mortars

Influence of Liquid-to-Solid and Alkaline Activator (Sodium Silicate to Sodium Hydroxide) Ratios on Fresh and Hardened Properties of Alkali-Activated Palm Oil Fuel Ash Geopolymer

Materializing Low-Cost Energy-Efficient Residential Utility through Effective Space Design and Masonry Technique - A Practical Approach

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