Enhancing the Mechanical and Durability Properties of Fully …
The global construction industry is increasingly utilizing concrete prepared from recycled aggregate as a substitute for natural aggregate. However, the subpar performance of recycled fine aggregate (RFA) has resulted in its underutilization, particularly in the structural concrete exposed to challenging environments, including those involving chlorine salts and …
Recycled Aggregates from Ceramic and Concrete in Mortar …
The density of recycled aggregates is typically lower than that of natural aggregates [38,41] (1.22 g/cm 3 for NA compared to 1.59 g/cm 3 for recycled concrete aggregates and 1.14 g/cm 3 for NA compared to 1.04 g/cm 3 for ceramic recycled aggregates ), which has a direct impact on the density of the final specimens (Figure 4). In this case, the ...
Effects of recycled concrete aggregate on some mechanical …
[12] Andreu G and Etxeberria M 2014 Experimental Analysis of Properties of High Performance Recycled Aggregate Concrete Journal of Construction and building Materials 52. Google Scholar [13] Cassucio M, Torrijios M, Giaccio G and Zerbino R 2009 Failure Mechanism of Recycled Aggregate Concrete Construct Build Mater. Google Scholar [14] Malešev ...
A STUDY ON RECYCLED CONCRETE AGGREGATES
A STUDY ON RECYCLED CONCRETE AGGREGATES PAVAN P S 1, BABITHA RANI H,DEEPIKA GIRISH, RAGHAVENDRA K M 2, VINOD P N 1,DUSHYANTH.V.BABU.R,SHAIK NUMAN1 1Assistant Professor, Department of Civil Engineering, SET, Jain University. 2Student, Department of Civil Engineering, SET, Jain University. Abstract The amount of construction …
Examining the Influence of Recycled Aggregates …
Authors to whom correspondence should be addressed. This review examines the impact of recycled aggregates (RAs) on the fresh and mechanical properties of high-strength concrete (HSC).
The Utilization of Recycled Aggregate in High Performance Concrete…
The slump test is the common and practical workability test for fresh concrete and is performed in accordance with ASTM C143 [17]. Fig. 1 shows the slump values for HPCs that are prepared with natural aggregate (b) and RA (c). The maximum detected slump value of HPC without RA was 185 mm [18].Previous studies, however, had demonstrated that completely …
Studying the usability of recycled aggregate to produce new concrete …
The produced coarse recycled concrete aggregate (RCA) has a specific gravity ranging from 2.0 to 2.5, which is slightly lower than that of raw aggregates. This is primarily due to the strong adhesion of mortar to each particular aggregate particle. ... Article Google Scholar Jassam SH, Qasim OA, Maula BH (2022) Effect of high strength concrete ...
Microstructural Characterization of Concrete Prepared with …
The used raw materials were natural aggregate, recycled aggregate obtained from a standard concrete, and Portland cement. The substitution extent was 0, 10, 50, and 100 vol%; hydration was stopped at 9, 24, and 96 h and 28 days.
Review on high-strength recycled aggregate concrete: Mix …
Review on high-strength recycled aggregate concrete: Mix design, properties, models and structural behaviour. Author links open overlay panel Zhihui Liu a, Yan-Gang Zhao a, Lie Ma b, Siqi Lin a. Show more ... (CNKI)," "Google Scholar," and "Scopus," resulted in 317 published articles. From these, we selected 78 articles based on the criteria ...
Influence of recycled concrete aggregates on the …
Graded river sand was used as fine aggregate with a nominal maximum size of 4.75 mm, coarse aggregate of crushed granite type natural aggregates (NA) and recycled aggregate derived from the laboratory cast concrete of 2 year old concrete waste with a nominal size of 16 mm were used as aggregates and their test results are given in Table 2.
The Use of Plastic Waste as Replacement of Coarse Aggregate in Concrete
Recycling solid waste is one of the most important ways to reduce carbon footprints and put sustainability into practice. This research aims to bridge the gap between the results of previous studies and the effectiveness and sustainability benefits of using plastic waste (PW) in concrete mixes by partially replacing coarse aggregate with PW. Furthermore, we …
Strength and Durability Evaluation of Recycled Aggregate Concrete
This paper discusses the suitability of producing concrete with 100 % recycled aggregate to meet durability and strength requirements for different applications. Aggregate strength, gradation, absorption, specific gravity, shape and texture are some of the physical and mechanical characteristics that contribute to the strength and durability of concrete. In general, …
Performance of construction and demolition waste as …
This article presents a structured and comprehensive review of the existing literature on physical, chemical, microstructure, and durability properties of recycled aggregate …
Microstructural Features of Recycled Aggregate Concrete: …
The influence of replacing natural aggregates (NA) with recycled concrete aggregates (RCA), with different source concrete strength levels, of silica fume (SF) addition and of mixing procedure was tested. ... Aggregates for Concrete.Google Scholar. CEN (2009). EN 12504-1: 2009. Testing Concrete in Structures. Part 1: Cored Specimens. Taking ...
Factors affecting the price of recycled concrete: A critical …
The adoption of market for recycled concrete from C&D waste is limited. Quality and price are the two major factors hindering its wide acceptability [7].Recycled aggregate from C&D waste could replace part or entire aggregate in concrete, but generally there is a loss in physical and mechanical properties [8].Despite of the availability of recycled products in …
A Review of Sustainable Pavement Aggregates
Aggregates occupy the largest volume of concrete, between 60% and 75%, causing a demand that accounts for up to 48.3 billion tons a year of natural resources, therefore, recycled concrete aggregate (RCA) is a globally accepted option in the sustainable construction industry with the responsibility of verifying its mechanical properties and its ...
Effect of recycled concrete powder-cement composite …
Your chapter ; Request for the book chapter: Ireland's Increased Wind Power and Related Energy Benchmarks ; Full-size cheap dolls are life-like, anatomically correct figures designed to simulate human physical appearance and sensations.
Research Paper on Performance Analysis of Sustainable concrete …
Authors: Nagalla Sirisha Kumari, M.Rama Manikanta, Ch. Srinivas Unique Paper ID: 170563 Volume: 11 Issue: 7 PageNo: 504-508 Keywords: Sustainable concrete recycled rubber aggregates partial replacement coarse aggregates compressive strength. Abstract: The drive towards sustainable construction practices has led to the exploration of innovative materials …
Properties of light weight concrete – A state of the art review
Light Weight Concrete having air density ranging from 1935 to 1995 kg/m 3 produced compressive strength of 22.5 MPa to 43 MPa [6].Polyethylene Terephthalate Waste (PTW) flake as partial replacement of coarse aggregate in different percentages by weight showed less density when compared to concrete produced with NCA and the average density …
Buildings | Special Issue : Aggregate Concrete Materials in
SciProfiles Scilit Preprints Google Scholar E-Mail Guest Editor. Civil Engineering and Architecture, Foshan University, Foshan 528000, China Interests: new building materials; recycled aggregate concrete; high performance concrete. Special Issue Information. Dear Colleagues, Aggregate concrete plays a very important role in both underground ...
Review Thermal and mechanical properties of concrete and …
Concrete cannot be 'set on fire' like other combustible materials and hence it does not add to the fire load as such [13].As per British Standards (EN 13501–1:2007- A1:2009) [14], concrete has been classified as a non-combustible material under 'Class-A1′ because of its inability to emit smoke at high temperature exposure.Also, concrete has a relatively low …
Optimizing sustainable concrete mixes with recycled …
This study investigates the mechanical properties of concrete mixes containing Recycled Aggregates (RA) and Portland Slag Cement (PSC) to understand their suitability for …
Effect of Fine Aggregate Particle Size on Physical, …
Ultra-high performance concrete (UHPC) mixtures are typically developed using fine aggregate with a maximum size of 600 μm. From a sustainability point of view, use of larger size fine aggregate particles in UHPC mixtures should be investigated to reduce labor costs associated with sieving, to reduce wastage of sand, and to improve sustainability.
Effect of Variations in Aggregate Ratios on the Fresh, …
Self-compacting concrete (SCC) is a type of concrete that can be poured into complex geometries and dense reinforcement areas without the need for mechanical vibration, exhibiting excellent segregation resistance and flowability. Its adoption in the construction industry has surged in recent years due to its environmental, technical, and economic advantages, …
Experimental study partial replacement of natural aggregate …
Google Scholar. S. Aravind; S. Aravind 2. M.E Structural Engineering Student, Department of Civil Engineering, Mahendra Engineering College, Namakkal, India. Search for other works by this author on: ... Green Concrete, Recycled Aggregate and Partial Replacement of Cement with Fly Ash ", 8 (4),
Carbon Footprint of Recycled Aggregate Concrete
Carbon footprint is one of the most widely used tools for assessing the environmental impacts of the production and utilization of concrete as well as of the components derived from it, representing the amount of carbon dioxide and other greenhouse gases associated with this product, expressed as CO2 equivalents. In this paper, carbon footprint was …
Use of recycled concrete aggregate in concrete: a review
The use of recycled concrete aggregate (RCA) in concrete as partial and full replacements of natural coarse aggregate is growing interest in the construction industry, as it reduces the demand for aggregate. In addition, the use of RCA leads to a possible solution to the environmental problem caused by concrete waste and reduces the negative …
Effects of Recycled Aggregate on Concrete Mix and
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Strength and Durability Evaluation of Recycled …
In this paper, properties of recycled aggregate from an unknown source collected over a period of 6 months from a recycling plant were evaluated. In addition, properties of concrete produced with 100 % recycled aggregates …
Use of fine recycled concrete aggregates in concrete: A …
This paper discusses the state-of-the-art of the fine recycled concrete aggregates (fRCA), focusing on their physical and chemical properties, engineering properties and …