Effect Of Olivine Nanosilica On The Reinforcement Of Natural Rubber Nanosilica Composites

Chandra, C.S. Julie; Shadiya, M.A.; Bipinbal, P.K.; Narayanankutty, Sunil K.

doi:10.1016/j.matpr.2019.02.047

Cited by 6 publications

(4 citation statements)

References 4 publications

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“…This is attributed to the large specific surface area of nanosilica, which acts as a robust binder between cement and aggregate [22]. Additionally, due to its extremely small particle size, nanosilica exhibits excellent pozzolanic activity [74][75][76][77][78][79][80], enabling it to effectively fill all pores and voids in the concrete, including the interfacial transition zone (ITZ), thus augmenting its strength [74,78,82,84]. The introduction of nanosilica promotes the formation of calcium silicate hydrate (CSH) gel, a crucial component in concrete strength.…”

Section: Adding Nano Silica To Concretementioning

confidence: 99%

Analysis of Experience in the Use of Micro- and Nanoadditives from Silicon Production Waste in Concrete Technologies

Karlina,

Gladkikh

2023

Minerals

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The integration of nanotechnology across various industries has significantly enhanced product quality and manufacturing technologies for diverse materials. Within the construction sector, the adoption of nanomaterials has sparked the advent of innovative construction methods. Extensive studies have been conducted on various nanomaterials, particularly micro- and nanosilica, exploring their use as partial substitutes for cement in concrete formulations. This study aimed to furnish a comprehensive overview of silica’s impact on concrete properties in civil engineering and road construction. Environmental concerns and potential hazards necessitate the development of strategies for managing industrial by-products. Metallurgical processes generate several such by-products, among which is silica fume—a residue from smelting in the silicon and ferrosilicon industries. Waste silica dust and slurries have proven highly effective in creating high-strength, high-performance concrete. The study presents a literature review focusing on micro- and nanosilica derived from production waste at ferroalloy and silicon plants. It includes a comparative analysis of the primary characteristics of microsilica from various sources and examines the extensive use of microsilica as a modifying additive in building materials. Analyzing different concrete compositions with and without fumed silica determined the ranges of results for each indicator. The incorporation of micro- and nanosilica into the concrete mix demonstrated its efficacy. The morphology of waste silica particles, characterized by the smooth and spherical surfaces of micro- and nanosilica particles, significantly influences the workability properties of the concrete.

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Section: Adding Nano Silica To Concretementioning

confidence: 99%

Analysis of Experience in the Use of Micro- and Nanoadditives from Silicon Production Waste in Concrete Technologies

Karlina,

Gladkikh

2023

Minerals

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“…Their high surface area combined with their low density allows obtaining excellent mechanical properties with low filler loadings and, therefore, a lower weight . Nanofillers include spherical particles such as silica or titania, platelets such as layered silicates, carbon, and multiwall or single-wall ,,,− carbon nanotubes (CNTs). CNTs exhibit unique electronic properties and high thermal conductivity, as well as excellent mechanical properties such as stiffness, strength, and resilience, which exceed those of any current material .…”

Section: Introductionmentioning

confidence: 99%

From Nanoscale to Macroscale Characterization of Sulfur-Modified Oxidized Carbon Nanotubes in Styrene Butadiene Rubber Compounds

Posadas,

Bernal-Ortega,

Bernal

et al. 2024

ACS Omega

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The homogeneous dispersion of carbon nanotubes (CNTs) in a rubber matrix is a key factor limiting their amazing potential. CNTs tend to agglomerate into bundles due to van der Waals interactions. To overcome this limitation, CNTs have been surface-modified with oxygen-bearing groups and sulfur. Using atomic force microscopy (AFM) techniques, a deep nanoscale characterization of the morphology, the degree of dispersion of the CNTs in the styrene butadiene rubber (SBR) matrix, and the thickness of the interfacial layer was carried out in this study. In this context, the results from nanoscale characterization showed that the thermal oxidation-sulfur treatment leads to a composite with better dispersion in the matrix, as well as a thicker interfacial layer, indicating a stronger filler−rubber interaction. The second part of this work focused on the macroscale results, such as the Payne effect, vulcanization curves, and mechanical properties. The Payne effect, vulcanization curves, and mechanical properties confirmed the lower reinforcing effect observed in the case of the chemical oxidation treatment because, on the one hand, this composite showed the highest agglomeration of CNTs after the acid treatment. On the other hand, the presence of acid residues provoked the absorption of basic accelerators on the surface of the CNTs.

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“…Nanotechnology has experienced significant progress, leading to noteworthy findings concerning particles smaller than 100 nm [14]. These minute particles can augment the mechanical characteristics of diverse materials, including polymers [15] and concrete [16]. Additionally, they hold relevance in various sectors, such as engineering, food, and medicine [17].…”

Section: Introductionmentioning

confidence: 99%

A Review of the Effect of Nano-Silica on the Mechanical and Durability Properties of Cementitious Composites

AlTawaiha,

Alhomaidat,

Eljufout

2023

Infrastructures

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The incorporation of nanotechnology has led to significant strides in the concrete industry, ushering in innovative construction methodologies. Various nanomaterials, including nano-silica (NS), have undergone comprehensive scrutiny as potential partial substitutes for cement in concrete formulations. This article aims to provide a comprehensive overview of the impacts of NS on several mechanical properties of concrete, encompassing compressive, split tensile, and flexural strengths. Additionally, the review delves into the influence of NS on the concrete’s durability, including microstructural characterization and the eradication of structural micropores. NS has demonstrated the capacity to bolster both strength and durability while concurrently diminishing structural micropores. Moreover, this review explores the contemporary status of NS application in cement concrete and presents avenues for prospective research. The assessment of engineering attributes becomes imperative for concrete infused with nano-silica. This encompasses aspects like bond strength, creep, shrinkage, and more. A rigorous evaluation of fresh and hardened properties is necessary to discern the material’s thermal and acoustical characteristics. Such a comprehensive understanding contributes to a holistic evaluation of the material’s adaptability across diverse applications.

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Effect Of Olivine Nanosilica On The Reinforcement Of Natural Rubber Nanosilica Composites

Cited by 6 publications

References 4 publications

Analysis of Experience in the Use of Micro- and Nanoadditives from Silicon Production Waste in Concrete Technologies

Analysis of Experience in the Use of Micro- and Nanoadditives from Silicon Production Waste in Concrete Technologies

From Nanoscale to Macroscale Characterization of Sulfur-Modified Oxidized Carbon Nanotubes in Styrene Butadiene Rubber Compounds

A Review of the Effect of Nano-Silica on the Mechanical and Durability Properties of Cementitious Composites

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