Evaluation of Expanded Clay and Tuff as Lightweight Agents in Concrete Stabilized with Nopal Mucilage and Aloe Vera DOI Creative Commons

Daniel Mendoza-Goden,

Rocio R. Gallegos-Villela,

Pedro Flores-Becerra

и другие.

Eng—Advances in Engineering, Год журнала: 2024, Номер 6(1), С. 1 - 1

Опубликована: Дек. 26, 2024

Objectives: This study aims to evaluate the potential of lightweight concrete mixtures incorporating sustainable materials, such as nopal mucilage and aloe vera, enhance thermal structural performance while promoting eco-friendly construction practices. The objective is analyze their effects on physical, mechanical, properties optimize mixture design. Methods/Analysis: Six were prepared using varying dosages tuff, expanded clay, mucilage, vera stabilizing agents. To assess performance, a series physical tests (bulk density, water absorption, slump), mechanical (compressive strength), characterizations (conductivity, heat capacity, resistivity) conducted. Fractal analysis was employed complexity mixtures. Findings: results revealed significant differences based materials used. Mixtures with exhibited extreme absorption (up 11.472%) consistency, from fluid (“spreads”) tuff workable clay. When combined Nopal mucilage-based showed lower workability but higher compressive strengths 11.447 MPa). Expanded clay increased bulk density enhanced efficiency, or demonstrating high retention complexity. ranged 7.343 MPa (aloe vera-tuff) 12.207 (water-tuff), highlighting impact agents performance. Novelty Improvement: introduces novel evaluation focusing synergistic aggregates findings provide valuable insights into optimizing improved retention, workability, properties, offering alternative for modern construction.

Язык: Английский

Long-Term Effects of External Sulfate Attack on Low-Carbon Cementitious Materials at Early Age DOI Creative Commons

François El Inaty,

Bugra Aydin,

Maryam Houhou

и другие.

Applied Sciences, Год журнала: 2024, Номер 14(7), С. 2831 - 2831

Опубликована: Март 27, 2024

Placed in a sulfate-rich environment, concrete reacts with sulfate ions, influencing the long-term durability of reinforced (RC) structures. This external attack (ESA) degrades cement paste through complex and coupled physicochemical mechanisms that can lead to severe mechanical damage. In common practice, RC structures are generally exposed at an early age. exposition affect ESA studied on pre-cured specimens. Moreover, current efforts for sustainable construction focus replacing clinker supplementary cementitious materials, requiring 90-day curing period, which contradicts real-life scenarios. Considering all these factors, objective this study is explore effects age cement-blended samples using various low-carbon formulations. The characterization techniques used demonstrated reference mix (100% CEM I) exhibits weakest resistance sulfate, leading complete deterioration after 90 weeks exposure. evident highest mass gain, expansion, cracking, formation ettringite gypsum, consumption from attacking solution. Conversely, ternary mix, consisting I, slag, metakaolin, demonstrates throughout entire 120 All blended pastes performed well environment despite being It be recommended substitute limited quantity along blast furnace as it most effective clinker, outperforming other combinations.

Язык: Английский

Процитировано

4
Effect of curing on the coupled attack of sulfate and chloride ions on low-carbon cementitious materials including slag, fly ash, and metakaolin DOI Creative Commons

François El Inaty,

Mario Marchetti, Marc Quiertant

и другие.

Construction and Building Materials, Год журнала: 2024, Номер 438, С. 137307 - 137307

Опубликована: Июль 4, 2024

Shortly after casting, offshore reinforced concrete structures are exposed to sulfate and chloride ions without undergoing any proper curing procedures, which crucial for enhancing their strength durability. Furthermore, there persists a lack of comprehensive understanding concerning the coupled impact attack on cementitious materials with current existing research still yielding conflicting outcomes. This paper investigates influence chemical interactions between low-carbon (substituting 45 % cement industrial by-products like slag, fly ash, metakaolin reduce CO2 emissions) ions. To achieve this, powder samples were obtained from prismatic-shaped specimens ordinary Portland (CEM I) paste, binary, ternary, quaternary blends. Some solid ground into 24 hours post-casting while others powdered 90-day period. Subsequently, acquired powders underwent exposure chloride, sulfate, sulfate-chloride solutions over duration 25 days. Results indicate that time does not alter interplay in matrix. Sulfate presence accelerates ion ingress, mitigates both uncured pre-cured samples. However, process attack, proven through excessive ettringite gypsum formation, high consumption portlandite AFm, diminution concentration attacking solution 5 days exposure, increase pH more than 0.5 units, aspect changes observed visual inspections, porosity distribution showed by an 10 total reference mix. Additionally, promotes formation Friedel's salt, thereby attenuating ingress.

Язык: Английский

Процитировано

4
Innovative enhancement of self-compacting concrete using varying percentages of steel slag: an experimental investigation into fresh, mechanical, durability, and microstructural properties DOI

Sabhilesh Singh,

Vivek Anand

Asian Journal of Civil Engineering, Год журнала: 2024, Номер unknown

Опубликована: Сен. 5, 2024

Язык: Английский

Процитировано

4
Effect of urea on the thixotropic behavior of mixtures containing calcium aluminate cement and Portland cement DOI
Neslihan Çaparoğlu, Öznur Biricik, Ali Mardani

и другие.

International Journal of Pavement Engineering, Год журнала: 2025, Номер 26(1)

Опубликована: Фев. 15, 2025

Язык: Английский

Процитировано

0
Role of recycled crushed clay bricks as fine aggregates in enhancing the performance of ferrocement-strengthened RC beams DOI Creative Commons
Md Jihad Miah, Mohammad Shamim Miah, Noor Md. Sadiqul Hasan

и другие.

Construction and Building Materials, Год журнала: 2025, Номер 478, С. 141412 - 141412

Опубликована: Апрель 23, 2025

Язык: Английский

Процитировано

0
Carbon capture and sequestration with in-situ CO2 and steam integrated 3D concrete printing DOI Creative Commons
Sean Gip Lim, Yi Wei Daniel Tay,

Suvash Chandra Paul

и другие.

Carbon Capture Science & Technology, Год журнала: 2024, Номер 13, С. 100306 - 100306

Опубликована: Сен. 26, 2024

Язык: Английский

Процитировано

3
Durability Assessment of Eco-Friendly Bricks Containing Lime Kiln Dust and Tire Rubber Waste Using Mercury Intrusion Porosimetry DOI Creative Commons
Joy Ayankop Oke, Hossam Abuel-Naga

Applied Sciences, Год журнала: 2024, Номер 14(12), С. 5131 - 5131

Опубликована: Июнь 12, 2024

The global challenge faced due to the impact of construction industry on climate change, along with issues surrounding sustainable waste disposal, has necessitated various research using products as eco-friendly alternatives in construction. In this study, avoidance disposal through landfills Australia was encouraged by incorporating lime kiln dust (LKD) and tire rubber (TRW) into masonry mixes manufacture green bricks. Furthermore, investigations article highlight use mercury intrusion porosimetry (MIP) determine durability LKD-TRW bricks when exposed freeze–thaw (F-T) cycles examining pore size distribution within LKD blended ground granulated blast furnace slag (GGBFS) at a 70:30 blending ratio combined TRW stepped increments 5% from 0 20% produce these compressive strength (CS), flexural (FS), frost resistance (FR), according (MIP), water absorption (WA) properties were assessed. CS FS values 28 days curing recorded 6.17, 5.25, 3.09 MPa 2.52, 2, 1.55 for 0, 5, 10% contents, respectively. Durability assessments F-T test showed that produced 0% passed frost-resistant results MIP total volume 0.033 mL/g 3 µm content, further confirming its durability. Hence, can be utilized cold regions where temperatures low −43 °C without deteriorating. Lastly, WA 7.25, 11.76, 14.96% TRW, respectively, after 28-day period. From all obtained laboratory investigations, up satisfactory engineering requirements units.

Язык: Английский

Процитировано

2
Studies on the concrete with composite cement and alccofine: from use of OPC towards low-carbon quaternary binder DOI

B. Suresh,

P. R. Kannan Rajkumar

Innovative Infrastructure Solutions, Год журнала: 2024, Номер 9(5)

Опубликована: Апрель 4, 2024

Язык: Английский

Процитировано

1
Enhancing pozzolanic activity of fly ash via dry and wet milling: A comparative study for sustainable construction material enhancement DOI Creative Commons
Hussein M. Hamada, Farid Abed, Zaid A. Al-Sadoon

и другие.

Journal of CO2 Utilization, Год журнала: 2024, Номер 83, С. 102811 - 102811

Опубликована: Май 1, 2024

This investigation delineates the enhancement of fly ash (FA) properties through mechanical treatments for sustainable construction applications and reducing carbon dioxide (CO2) emissions. FA, a byproduct coal combustion in power generation, inherently exhibits limited pozzolanic activity. research evaluates impact particle size reduction via dry wet milling on FA's behavior. The study's comparative analysis involves three FA variants: untreated raw material, dry-milled, wet-milled FA. Extensive characterization encompassed chemical composition, physical properties, microstructural features. Results demonstrate marked improvement activity milled FAs, with yielding superior outcomes (98% diminution compared to FA) reactivity. assessment underscores milling's efficacy over enhancing performance as material. In light these findings, study advocates continued exploration treatments, aiming optimize their utility eco-friendly practices.

Язык: Английский

Процитировано

1
Mechanical Properties of High-Volume Fly Ash Mortar Modified by Hybrid Carbon Nano Tube and Graphene Oxide DOI Creative Commons
Maizuar Maizuar,

Herman Fithra,

Khairullah Yusuf

и другие.

Electronic Journal of Structural Engineering, Год журнала: 2024, Номер unknown, С. 23 - 27

Опубликована: Дек. 24, 2024

The effect of combined nano materials on mechanical properties high-volume fly ash mortar (HVFAM) was carried out in this investigation. characteristics HVFAM mixes were first evaluated using slump flow tests. Then, the including measurement setting time and development early-age compressive strength performed. Structural changes during hydration analyzed FTIR analysis. study utilized (FA) as a 60% replacement for cement, with addition 0.01% carbon nanotubes (CNT) graphene oxide (GO) five different dosages ranging from to 0.05%. Results showed that incorporation hybrid CNT GO significantly affected HVFAM. Specifically, increased contents lead significant reduction both workability HVFAM, more pronounced final compared initial time. improved by 15.8% highest 28 day-strength increasing approximately 23% at 0.03% dosages. analysis confirmed attributed accelerated cement caused seeding effect. outcome provides suitable approach eco-friendly could be effectively used

Язык: Английский

Процитировано

1