Characteristics Of Aggregate Recycling

A huge problem with glass is the single-use purpose for applications such as beverage bottles, which is one of the main uses of glass. Waste glass is estimated to account for 5% of the global municipal solid waste generated in 2016 [1], with recycling rates varying globally and within regions.In 2017, Europe had a glass recycling rate of 71.48%, with individual …

These characteristics can be quantitatively evaluated by the aggregate crushing value, which is an index of the aggregate's ability to resist breakage in road bases that has been included in various codes of road bases (Uche and Muhammad, 2011, Giwangkara et al., 2019, Kambole et al., 2019).

The characteristics of waste glass as aggregate might differ greatly based on where it comes from, like glass containers. glass used for containers typically has a greater silica content. ... Recycling waste glass aggregate in concrete: Mitigation of alkali-silica reaction (ASR) by carbonation curing. Journal of Cleaner Production, 370, 133545 ...

Microtexture Characterization of Bulk-Aggregate Samples for Application in High-Friction Surface Treatments ... we further explore the mechanical properties and particle …

After demolition of old roads and buildings, the removed concrete is often considered worthless and disposed of as demolition waste. By collecting the used concrete and breaking it up, recycled concrete aggregate (RCA) is created (Fig. 1).This paper focuses on coarse RCA which is the coarse aggregate from the original concrete that is created after the …

Furthermore, techniques to enhance the mechanical characteristics and long-term performance of recycled aggregate are distilled and divided into three categories: (1) lowering …

Preliminary experiments were conducted to ascertain the strength characteristics of geopolymer concrete by partially replacing Natural Coarse Aggregate (NCA) with RAP. ... RAP is a sustainable material used in various industries to develop their infrastructure by recycling and reusing it. RAP that is utilised as coarse aggregate in geopolymer ...

Efforts to mitigate global carbon emissions require addressing the environmental impact associated with natural aggregate production. Despite the availability of Coal Bottom Ash (CBA) and Reclaimed Asphalt Pavement Aggregate (RAPA), with properties similar to natural aggregates, they mostly end up in landfills. This study contributes to sustainable construction, …

The characteristics of modified LF slag by different cooling methods have also been investigated. Choi et al. (2016) reported that pulverized LF slag, ... Recycling of waste aggregate in cement bound mixtures for road pavement bases and sub-bases. Constr. Build. Mater., 108 (2016), pp. 112-118.

The writers have postulated that the lower elastic modulus and higher creep and shrinkage properties of RCA-concrete, as reported by some researchers, are due to the difference in the proportions of the ingredients of RCA-concretes vis-à-vis their companion NA-concretes rather than the properties of RCA per se [17].The RCA-concretes in these studies were …

2.1. Physical and chemical characteristics of glass. Waste glass can be categorized by three main types, soda-lime glass, borosilicate glass, and lead glass with their chemical compositions displayed in Table 1.Soda-lime glass is generally used to make container glass (e.g. beverage bottles) and plate glass (e.g. windowpanes), with borosilicate glass being used for …

Aggregates are a fundamental component of construction materials used in various civil engineering applications. They play a vital role in determining the properties and performance of concrete, asphalt, and other construction materials. Understanding the characteristics of aggregates is essential for engineers and builders to ensure the quality and durability of …

The recycling of waste in concrete prevents the depletion of natural resources, preserves the environment and also manages the disposal of waste. As aggregates in concrete are in higher volume, hence using construction and demolition waste (CDW) as recycled aggregate would make concrete construction more sustainable.

This study analyzed environmental impacts and economic feasibility to evaluate whether recycling fly ash, which has rarely been addressed in previous studies, as a raw material for lightweight aggregates can be a …

In addition, methods for enhancing the mechanical characteristics of recycled aggregate and long-term efficiency such as improving the properties without modifying the recycled aggregate (namely, different concrete mixing designs and the addition of reinforcing fibers) were reviewed.

In structural concrete, it becomes essential to perform the comprehensive research work for recycled aggregates (RA) in order to check their material properties as well as assess …

In this paper, the stress–strain behaviour, mechanical properties, characteristic stress, and damage evolution of multi-recycled aggregate concrete (Multi-RAC up to 3 recycling cycles) under triaxial compression were investigated, considering the effects of confining pressure and number of recycling cycles.

Crushing waste concrete into recycled fine aggregate (RFA) and recycled coarse aggregate to replace traditional building materials is a key measure to promote the sustainable development of the civil engineering industry [3].Recently, there has been a lot of research into replacing natural coarse aggregate with recycled coarse aggregate to prepare recycled …

The ITZs-A-R is 25 μm thick after examining the lateral change of characteristics around the aggregate. ITZs-A-R has an average modulus of 24.01 GPa, which is 1.3–1.5 times that of residual mortar. ... Development of recycling technology from waste aggregate and dust from waste concrete. J. Ceram. Process. Res., 8 (1) (2007), pp. 82-86. View ...

Recycling construction waste is a viable tactic for advancing environmentally friendly building methods. With regard to concrete applications, the purpose of this research is to determine whether it is feasible to use recycled fine concrete aggregates (RFA) in lieu of natural fine aggregates (NFA) and to lessen the environmental impact of natural resource depletion …

Recycled aggregates typically exhibit lower particle density, higher water absorption, and weaker mechanical properties than pristine crushed stone aggregates due to …

The effects of various acid concentrations (0.1, 0.5, and 0.8 mol of HCl) and treatment times on the characteristics of aggregate and concrete were evaluated by Guneyisi et al. . They discovered that the time spent immersed in an acid bath had no discernible effect on the quantity of mortar removed and that the application of a low ...

Incorporating wear-resistant aggregate, high performance asphalt or reinforced fiber was considered the common mean to elevate the characteristics of UTFC. The composite aggregate of calcined bauxite and limestone was introduced in UTFC to advance the skid-resistance durability of stone matrix asphalt (SMA)-5 UTFC [10].

The recycling of CDW has become a prominent issue and the main objective of waste management policies. This has led to a greater emphasis on reusing, ... An evaluation of the recycled aggregate characteristics and the …

Incorporating wear-resistant aggregate, high performance asphalt or reinforced fiber was considered the common mean to elevate the characteristics of UTFC. The composite aggregate of calcined bauxite and limestone was introduced in UTFC to advance the skid-resistance durability of stone matrix asphalt (SMA)-5 UTFC [10]. The results indicated ...

First, the aggregate fragmentation caused by compaction effort was simulated using the superpave gyratory compactor. In this regard, the influences of aggregate type and RA content were investigated. Second, the indoor experiment scheme was determined using the Taguchi method to obtain compaction data of recycled aggregate asphalt mixture (RAAM).

The adhesion characteristics of the asphalt-aggregate interface in different cold recycled asphalt mixtures have been comprehensively investigated based on the atomic force microscopic (AFM).

Recycling plastic waste in construction applications is a common concept for innovative concrete development. Enormous studies have been conducted for the past three decades. Yet, there is a need in understanding the behavior of the plastic, its effects on cement composite, and the possible approaches for extending the usage of plastic waste to be an …

After that, recycled aggregate concrete (RAC) was produced with an objectively compressive strength of 30MPa, in which the recycled coarse aggregate was used as 30%, 70% and 90% replacements of ...

Durability And Performance Characteristics Of Recycled Aggregate Concrete KK Sagoe Crentsil T BrownTaylor ... Summary: In recent years, the recycling of concrete to produce aggregates suitable for non-structural concrete applications is emerging as a commercially viable and technically feasible operation. In this paper, we report on ...