Development of high performance geopolymer concrete with waste rubber and recycle steel fiber: A study on compressive behavior, carbon emissions and economical performance

Chen, Gai; Zheng, Dong-ping; Chen, Yi-wu; Lin, Jia-Xiang; Lao, Wei-jian; Guo, Yong; Chen, Zhan-biao; Lan, Xue-Wei

doi:10.1016/j.conbuildmat.2023.131988

Cited by 41 publications

(20 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The failure modes of uniaxial compressive specimens of H-EGCs are shown in Figure 7. As shown in Figure 8, inclined primary cracks penetrate the side of the cylinder specimens from top to bottom, indicating a vertical splitting failure with pronounced compressive brittleness behavior [12]. Numerous crack branches originate around the main crack, and there is no apparent spalling on the surface at the time of failure, indicating good integrity and highlighting the effective bridging role of fibers after specimen failure.…”

Section: Failure Modementioning

confidence: 92%

“…In addressing this issue, scholars have endeavored to develop novel gel materials as partial or complete substitutes for Portland cement. In recent years, geopolymer has garnered widespread attention due to its notable characteristics, including high compressive strength, exceptional chemical resilience, and superior fire resistance [11][12][13]. Using silica-alumina-rich volcanic ash as a precursor material (such as metakaolin, FA, and GGBS), and employing alkaline activators (typically NaOH, Na 2 SiO 3 , or Na 2 CO 3 ), the material's reactivity is enhanced, initiating hydrolysis and polymerization reactions, thereby forming geopolymer materials [14].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comprehensive Analysis of Mechanical, Economic, and Environmental Characteristics of Hybrid PE/PP Fiber-Reinforced Engineered Geopolymer Composites

Zhang,

Ling,

et al. 2024

Buildings

View full text Add to dashboard Cite

Engineered Geopolymer Composites (EGCs), known for their excellent tensile properties and lower carbon emissions, have gained widespread attention in the field of fiber-reinforced concrete. However, the high cost of high-performance synthetic fibers, a crucial component of EGCs, limits their practical engineering applications. In this study, by using low-cost PP fibers hybridized with PE fibers and adjusting the fly ash/ground granulated blast furnace slag (FA/GGBS) ratio, cost-effective, high-performing hybrid PE/PP-reinforced engineered geopolymer composites (H-EGCs) were developed. This study conducted axial compressive and tensile tests on H-EGCs with different FA/GGBS ratios (7:3, 6:4, and 5:5) and PP fiber replacement ratios (0%, 25%, 50%, 75%, and 100%), investigated the influence of FA/GGBS and PP fiber replacement ratio on static mechanical behavior, and evaluated the economic and environmental benefits based on mechanical performance indicators. The result indicated that the compressive strength of H-EGCs can reach 120 MPa when the FA/GGBS ratio is 5:5; however, an increase in FA/GGBS and PP fiber replacement ratio leads to a loss in compressive strength and elastic modulus. The incorporation of PP fibers in moderate amounts enhances ultimate tensile strain by reducing crack control ability, and the maximum tensile deformation capacity (7.82–9.66%) was obtained for H-EGCs with a PP fiber replacement ratio of 50%. The optimal economic and environmental benefits of H-EGCs are observed when the FA/GGBS ratio is 5:5 and the PP fiber replacement ratio is set at 50%.

show abstract

Section: Failure Modementioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Comprehensive Analysis of Mechanical, Economic, and Environmental Characteristics of Hybrid PE/PP Fiber-Reinforced Engineered Geopolymer Composites

Zhang,

Ling,

et al. 2024

Buildings

View full text Add to dashboard Cite

show abstract

“…The flowability test of fresh concrete was conducted according to the code (ASTM-C1437, 2013 [40]). The testing apparatus is shown in the diagram below [2].…”

Section: Flowability Testmentioning

confidence: 99%

“…However, these constituent materials have high carbon footprints. For instance, the production of 1 ton of cement generates around 0.87 tons of CO 2 [1][2][3][4][5][6]. Additionally, the utilization of aggregates in UHPC, such as natural river sand, has resulted in increased mining costs due to the diminishing availability of natural resources.…”

Section: Introductionmentioning

confidence: 99%

“…When it comes to the impact of cementitious materials on carbon emissions in UHPC, alkali-activated materials (AAM) are an ideal alternative. AAM are three-dimensional inorganic structures obtained by reacting alkaline activators with silica-alumina-rich raw materials [2,32]. The raw materials used for AAM have a low carbon footprint and are widely available, including materials such as kaolin, feldspar, and other silicate-aluminate materials, as well as industrial solid wastes like slag and fly ash [1].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ultra-High-Performance Alkali-Activated Concrete: Effect of Waste Crumb Rubber Aggregate Proportions on Tensile and Flexural Properties

Li,

Chen,

Che

et al. 2024

Buildings

View full text Add to dashboard Cite

The declining availability of natural sand resources and the significant carbon footprint associated with the extensive use of cement are posing severe limitations on the advancement and application of ultra-high-performance concrete (UHPC). In this study, waste tyre-derived recycled crumb rubber particles (CR) were employed to replace quartz sand, and an alkali-activated cementitious material was used to produce waste tyre-alkali-activated UHPC (T-UHPAC). The influence of different CR replacement ratios (0%, 5%, 20%, 35%, 50%) on the tensile and flexural performance of T-UHPAC was investigated, and a predictive model for the stress–strain response considering the CR replacement ratio was established. An optimization method for improving the tensile and flexural performance of T-UHPAC was proposed. The results indicate that the effect of rough-surfaced CR on the interfacial properties of concrete differs from that of smooth quartz sand. A CR replacement ratio exceeding 35% led to a reduction in both the tensile and flexural strengths of UHPAC, while a replacement ratio at or below 20% resulted in a superior tensile and flexural performance of T-UHPAC. The established predictive model for tensile performance accurately forecasts the stress–strain behaviour of T-UHPAC under varying CR replacement ratios, with the accuracy improving as the CR replacement ratio increases. By utilizing CR to replace quartz sand in proportions not exceeding 20%, the production of low-carbon UHPC with exceptional comprehensive mechanical properties is achievable. Moreover, the development of T-UHPAC through the comprehensive utilization of waste tyres presents a promising and innovative approach for the low-carbon and cost-effective production of UHPC, thereby facilitating the sustainable development of natural resources. This research represents a significant step towards the widespread adoption and application of UHPC and thus holds substantial importance.

show abstract

Valorization of Seawater as an Activator for Mixing and Curing Water in Mid-Strength Concrete Containing Class C Fly Ash: Strength, Economic and Environmental Benefits

Aruntaş,

Korkmaz,

Demir

et al. 2023

Iran J Sci Technol Trans Civ Eng

View full text Add to dashboard Cite

Development of high performance geopolymer concrete with waste rubber and recycle steel fiber: A study on compressive behavior, carbon emissions and economical performance

Cited by 41 publications

References 58 publications

Comprehensive Analysis of Mechanical, Economic, and Environmental Characteristics of Hybrid PE/PP Fiber-Reinforced Engineered Geopolymer Composites

Comprehensive Analysis of Mechanical, Economic, and Environmental Characteristics of Hybrid PE/PP Fiber-Reinforced Engineered Geopolymer Composites

Ultra-High-Performance Alkali-Activated Concrete: Effect of Waste Crumb Rubber Aggregate Proportions on Tensile and Flexural Properties

Valorization of Seawater as an Activator for Mixing and Curing Water in Mid-Strength Concrete Containing Class C Fly Ash: Strength, Economic and Environmental Benefits

Contact Info

Product

Resources

About