advantages of recycled aggregate concrete

Incorporating coarse and fine recycled aggregates into concrete

2023.11.6 Materials and reagents. The application of recycled concrete aggregates (RCA) serves as a widely embraced method on behalf of repurposing concrete waste,

Recycled Concrete Aggregate - an overview ScienceDirect

Recycling construction and demolition waste in the production of recycled aggregate concrete is an attractive approach in terms of environment and economy. However, the

Assessment of the engineering properties and economic advantage

2023.6.1 Compared with mineral aggregate concrete, the recycled aggregate concrete prepared using the CCSA, RBA, and WRBA showed a significant reduction in

Recycled Aggregate: A Viable Solution for Sustainable Concrete ...

2022.7.30 This solution can simultaneously mitigate two major problems: (i) reduce the environmental impact associated with aggregate extraction, and (ii) provide a proper

Performance Improvement of Recycled Concrete

2023.5.30 In the construction industry, natural aggregates (NA) can be replaced by recycled concrete aggregates (RCA), which can address the issue of construction-waste disposal and resolve the dilemma between

Sustainable Materials: A Review of Recycled Concrete Aggregate ...

2021.10.28 In this paper, a comprehensive literature review was conducted on the utilization of recycled concrete aggregate (RCA), which is the dominant construction and

Construction and demolition waste as recycled aggregate for ...

2021.9.10 1 Altmetric Explore all metrics Cite this article Abstract Recycled aggregates (RA) from construction and demolition waste (CDW) instead of natural

Advances and New Challenges for Recycled Aggregate Concrete

2021.12.3 The experimental results showed that the strength of recycled concrete decreases with increasing water-cement ratio and as the replacement rate of recycled

Recycled Concrete Aggregate Introduction, Uses,

2022.2.24 3. Advantages of Recycled Concrete Aggregate The advantages of recycled concrete aggregate are as follows: 1. Decreases the cost of construction. 2. Preserve natural resources. 3. It is a high water

Effect of recycled concrete aggregates on the mechanical

2023.3.7 Utilization of recycled materials for construction is gaining advantage over conventional materials in terms of sustainable credits. However, the amount of production of construction and demolition waste and its utilization has no comparison. In this paper, the mechanical and durability properties of self-cured concrete with recycled aggregates

Recycled Concrete Aggregate - an overview ScienceDirect

The recycled aggregate concrete (RAC) is widely applied in existing engineering, due to the great economy and environmental protection. However, there are several disadvantages of RAC: complex existing mix design methods, lower strength, and brittleness. This chapter initially presents a simple mixed design method.

Assessment of the engineering properties and economic advantage

2023.6.1 Debieb et al. [15] tested the 90 d mechanical strength and other indices of concrete prepared using recycled brick coarse aggregate and recycled brick fine aggregate. The results indicated that the decrease in the compressive strength was insignificant when the fine and coarse aggregates of recycled bricks were mixed at 50% and 25%,

Using Recycled Concrete Aggregate Specify Concrete

2019.2.28 Brittle concrete might be mixed within the aggregate, leading to uneven grading. Supplements need to be added to make the final cast as strong as it can be with natural aggregate. Visual inspection is necessary to ensure the mix is refined. Recycled concrete aggregate offers many diverse advantages, among the most prominent are

Assessment of the engineering properties and economic advantage

2023.6.1 This indicates that the recycled aggregate concrete prepared with CCSA RBA and WRBA has a significant cost advantage compared with NAC. Furthermore, a high content of the CCSA caused a decrease in the compressive strength–cost efficiency of concrete, thereby offsetting the cost advantage of the recycled aggregate. 4. Conclusions

Advantages and shortcomings of the utilization of recycled

2021.9.6 The properties of pervious concrete made with coarse recycled concrete aggregates (RCA), recycled fine glass (RFG), and ground granulated blast furnace slag (GGBS) were examined. Pervious concrete was produced by substituting coarse aggregates with 0–40% RCA, fine aggregates with 0–100% RFG, and cement with 50% GGBS.

Utilization of recycled concrete aggregate in bituminous

2022.4.4 Among these various measures, recycling the concrete portion of CD waste to obtain Recycled concrete aggregate (RCA) is a popular method which is adopted by the researchers in past few decades [17], [18], [19]. Using RCA as virgin aggregates solves the problems associated with CD waste disposal and the availability of virgin

Mechanical Properties of a New Type Recycled Aggregate Concrete ...

2021.1.14 Considering the advantages of energy conservation and reducing the construction skill requirement of the workers, a new type of interlocking hollow block using recycled aggregates concrete (IHB-RAC) with the compressive strength up to 10 Mpa was proposed, which could help improve more than 56% of the construction efficiency

What are the advantages of using recycled aggregates?

2021.10.8 Whilst recycled aggregate costs a fraction of the price of raw materials, no sacrifice is made to its quality and performance. On its own, it appears to be just as strong as traditional aggregate and has a reliable structure. However, when mixed with concrete or cement, recycled aggregates are exceptionally durable and have a long lifespan. 3.

Performance enhancement of recycled concrete aggregate –

2016.1.20 RCA have higher porosity and water absorption, and lower strength compared with NA. The water absorption of RCA ranges 3–12% compared with 1–5% for NA (Gómez-Soberón, 2002, Katz, 2003). The density and absorption of RCA depend upon the W/C ratio of the original concrete (Etxeberria et al., 2007) and the amount of adhered

(PDF) Environmental Impacts for Recycled Aggregate Concrete by Adopting ...

2021.10.1 The results indicate that adoption of recycled aggregate concrete as structural material in the high-rise structure, in place of natural aggregate concrete, can result in up to about 2.175 × ...

review of Recycled aggregate, Its advantages and

2019.4.29 new concrete. Recycling of concrete is essentially easy procedure. It calls for breaking, removing, and smashing existing concrete right into a material with a specified quality and size. This paper provides disadvantages and advantages of utilizing recycled coarse aggregate concrete with the organic crushed aggregate concrete. Keywords

What Is Recycled Concrete Aggregate? Process of Recycled concrete ...

2021.8.16 Advantages of Recycled Concrete Aggregate. A portable crusher plant can be used to crush a piece of concrete on site. So as to reduce transportation costs and pollution from transport to dump. Crushing of pieces of concrete is possible on site by the plant, which reduces the cost of transport materials and waste. ...

The environmental benefits of recycled aggregates - Aggregate

2023.11.8 Disadvantages of recycled aggregate concrete. Recycled aggregates are subject to stringent quality controls in order to meet environmental and performance protocols relevant to the intended use. Suppliers are required to implement detailed Factory Production Controls (FPC) and quality plans that can be followed, maintained and

Effects of waterproofing admixture on the compressive

2020.11.1 The use of recycled concrete aggregate (RCA) is an effective approach to achieve environmental sustainability. However, the presence of defects due to previous alkali–aggregate reactions (AARs) has caused reluctance toward its use in constructions. This study investigated the application and influence of RCAs with different degrees of

Accelerated carbonation technology for enhanced treatment of recycled ...

2021.5.3 The compressive strength and flexural strength of recycle aggregate concrete (RAC) decreased by 26% and 41%, respectively, when compared with that of the natural aggregate concrete ... The advantages and disadvantages of these methods for RCAs treatment are summarized in Table 1. These methods can improve the quality of

Durability of recycled aggregate concrete – A review

2018.5.1 Durability of concrete is the ability of concrete to resist various types of damage, maintaining its strength and appearance integrity for its service period of exposure to its surrounding environment. Compared with nature aggregate concrete (NAC), the durability of RAC is usually weaker than NAC due to the adhered mortar on the RA.

Using recycled aggregate concrete at a precast-concrete

2022.11.1 The next steps in this research line may be (1) to analyze the use of coarse RA in a precast-concrete plant considering, in addition to the aspects covered in this paper, the environmental advantages of using this alternative aggregate; or (2) to improve the design of the SCC containing coarse RA to extend the recommended use of this type

Recycled Concrete Aggregates: A Review International

2013.3.29 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