A state-of-the-art review of rubber modified cement-based materials: Cement stabilized base

Liu, Luqing; Wang, Chaohui; Liang, Qing; Chen, Feng; Zhou, Xiaolei

doi:10.1016/j.jclepro.2023.136270

Cited by 25 publications

(8 citation statements)

References 29 publications

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“…As shown in Figure S5, the particle size of the cement particles ranges from 1 to 10 µm, which is in line with the range of higher activity for cement particle sizes. (Liu et al, 2023) First, the effects of CNFS/ASWs with different mass fractions on exural and compressive strengths after 3, 7 and 28 days of hydration were investigated. In the early stage, the hydroxyl and carboxyl groups in the CNFs/ASWs molecules react with Ca 2+ to form a complex, which delays hydration and retards solidi cation.…”

Section: Resultsmentioning

confidence: 99%

Full-Components Utilization of Cellulose Nanofibrils and Artificial Stone Wastes for Cement Enhancement

zhou,

huang,

yang

et al. 2023

Preprint

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With the concept of carbon neutrality, the value-added utilization of biomass materials and solid wastes has become a cutting-edge topic. Cellulose nanofibrils (CNFs) have received much attention due to their excellent properties in terms of high aspect ratio, specific strength and specific surface area, but their large-scale preparation remains a great challenge. Here, we propose a facile aqueous solution method for the fabrication of CNFs through artificial stone wastes (ASWs)-assisted supramolecular interfacial interactions for the full-components utilization in cement mortar materials. The strong hydrogen bonding interaction between ASWs and CNFs can effectively prevent the intramolecular hydrogen bonding of CNFs and agglomeration of ASWs, while improving the stability of CNFs/ASWs suspensions. The resulted CNFs/ASWs with active hydroxyl or carboxyl group can improve the flexural and compressive strength of cement (30.8% and 37.8% higher than that of pristine cement, respectively) by embedding into the defects of cement mortar and promoting the hydration process of cement. This work not only provides a new idea for the large-scale preparation of biomass nanomaterials, but also opens up the full-components value-added utilization of biomass and solid wastes in cement materials.

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Section: Resultsmentioning

confidence: 99%

Full-Components Utilization of Cellulose Nanofibrils and Artificial Stone Wastes for Cement Enhancement

zhou,

huang,

yang

et al. 2023

Preprint

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“…The optimum rubber content is usually around 5-15% wt., but a wide range of particle sizes (0.1-20 mm) have been investigated depending on the property to optimize. Once again, the properties of rubberized concrete can be improved by performing a surface treatment (chemical and thermal) on the rubber particles before mixing [64,65]. Another possibility is the addition of a third ingredient (also of recycled origin), such as thermoplastics [66,67] and fibers [3,28].…”

Section: Concretementioning

confidence: 99%

Application of Waste Tire in Construction: A Road towards Sustainability and Circular Economy

Hassan,

Rodrigue

2024

Sustainability

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The global demand for rubber is on a steady rise, which is driven by the increasing production of automobiles and the growing need for industrial, medical, and household products. This surge in demand has led to a significant increase in rubber waste, posing a major global environmental challenge. End-of-life tire (ELT) is a primary source of rubber waste, having significant environmental hazards due to its massive stockpiles. While landfilling is a low-cost and easy-to-implement solution, it is now largely prohibited due to environmental concerns. Recently, ELT rubber waste has received considerable attention for its potential applications in civil engineering and construction. These applications not only enhance sustainability but also foster a circular economy between ELT rubber waste with the civil engineering and construction sectors. This review article presents a general overview of the recent research progress and challenges in the civil engineering applications of ELT rubber waste. It also discusses commercially available recycled rubber-based construction materials, their properties, testing standards, and certification. To the best of the authors’ knowledge, this is the first time such a discussion on commercial products has been presented, especially for civil engineering applications.

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“…When subjected to the compressive test, the X-ray images confirmed significant defects with widened cracks in the reference cement-treated aggregate (C5R0) sample. Hence, the bearing capacity of the reference sample was wholly lost, and severe opening cracking was a reason for the reflective cracking phenomenon in semi-rigid pavements [11]. Whereas the CTB material containing 45% RA (C5R45) remained intact after failure, cracks around RA were narrow and interconnected.…”

Section: Internal Structural Analysesmentioning

confidence: 99%

“…compression. Compaction using vibration was the most effective method, as it reflects rolling compaction in the field, resulting in maximum dry density while reducing mixing water and damage to aggregates [11]. Figure 1 shows a sample casting and finalizing using a vibrator to compact cement-treated materials in a cylindrical mould sized 15 cm x 30 cm.…”

Section: Introductionmentioning

confidence: 99%

Utilization of rubber aggregates in cement-treated bases: A review

Pham

2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Cement-treated bases are commonly used in high-classified road pavements due to their stable strength and improved durability. However, this type of pavement base is sensitive to shrinkage caused by early water loss or temperature change after construction, resulting in shrinkage cracks and subsequent reflective cracking in semi-rigid pavements. To address this issue, various waste or by-products, such as oil, steel slag, end-of-life tires etc., have been investigated for use as an additive or a replacement for aggregates in cement-treated base. This review focuses specifically on the impact of rubber aggregates on the properties of rubberized cement-stabilized aggregates. In general, rubber aggregates are detrimental to the mechanical properties of cement-treated aggregates. However, the rubberized cement-stabilized aggregates exhibited reduced shrinkage and improved shrinkage cracking resistance, as confirmed through actual field applications. Furthermore, internal microstructure analyses indicate that rubberized cement-stabilized aggregates possess excellent anti-cracking capacity, particularly when subjected to compressive loadings. The review ends with recommendations and future studies to promote the applicability of rubberised cement-stabilized bases in semi-rigid pavements.

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A state-of-the-art review of rubber modified cement-based materials: Cement stabilized base

Cited by 25 publications

References 29 publications

Full-Components Utilization of Cellulose Nanofibrils and Artificial Stone Wastes for Cement Enhancement

Full-Components Utilization of Cellulose Nanofibrils and Artificial Stone Wastes for Cement Enhancement

Application of Waste Tire in Construction: A Road towards Sustainability and Circular Economy

Utilization of rubber aggregates in cement-treated bases: A review

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