Use of recycled aggregate concrete in structural members: …
The specific gravity indicates the density of aggregates, which in turn influences the mix workability and concrete properties. ... J. Drury, J. S. Volz, and K. H. Khayat. 2015. "Effect of Recycled Concrete Aggregate Replacement Level on Shear Strength of Reinforced Concrete Beams." ACI Materials Journal 112 (open in a new window) (4 (open ...
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Geopolymer concrete incorporating recycled aggregates: A …
Abstract. Several industrial by-products are extensively used again as a supplementary cementitious material or aggregates in the interest to reduce environmental …
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Effect of Modification and Replacement Rate of Recycled …
The modification method and the replacement rate of recycled coarse aggregate (RCA) have a great influence on the properties of recycled aggregate concrete (RAC). This paper aims to study the properties of RAC changes with the replacement rate and analyze the modification mechanism. Composite impregnation treatment was carried out for RCA using …
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Potential use of recycled concrete aggregate (RCA) for …
The C&DW consists of a stream of heavy materials such as concrete, wood, metal, gypsum, plastic, etc., among which concrete is the main debris (Mak et al., 2019)., Natural aggregate (NA) is the main constituent of concrete and is generally used to fabricate concrete by at least 60% by mass of total blends (Mo et al., 2020), and is thus embedded ...
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Evaluation of Pervious Concrete Utilizing Recycled HDPE …
For the different aggregate/cement ratio used in this study, coarse aggregate size 9.375 mm has higher compressive strength values compared to those made from 18.75 mm aggregate size while 18.75 ...
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A comprehensive review on the use of recycled concrete aggregate …
Such aggregates are known as recycled concrete aggregates (RCA). The utilization of RCA in structural applications has been proven to be a common practice. It has proven effective in some mix designs and per cent replacement modification forms.
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Use of fine recycled concrete aggregates in concrete: A …
The authors applied Model Code's recommendation, taking into account different densities of natural fine aggregates (FNA) and fRCA (by which the replacement ratio was considered) and the type of superplasticizer used, which influences the water-to-cement ratio, as follows: (1) f c t m = a ⋅ f c 2 3 ⋅ ((1 − r) ⋅ ρ F N A + r ⋅ ρ f R C ...
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Waste Plastic Aggregates as a Replacement of Natural Aggregates …
In this experimental setup, five mixes were prepared with different proportion of fine aggregate replacement. These five mixes are, control mix (M 0), M 1, M 2, M 3 and M 4, control mix is a standard mix having all natural fine aggregate content, whereas mix M 1, M 2, M 3 and M 4, contains 25%, 50%, 75% and of plastic fine aggregate respectively.. 3.1 …
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Use of recycled aggregate concrete in structural …
This article presents a comprehensive review on the use of recycled concrete aggregate (RCA) and recycled aggregate concrete (RAC) in construction, with emphasis on structural applications and identification of …
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Recycled Concrete Aggregate
Recycled aggregate concrete (RAC) is a new type of concrete produced using crushed, screened, and washed recycled aggregate obtained from waste concrete to replace natural …
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Internal Curing Utilising Recycled Concrete Aggregate: A …
High-strength concrete (HSC) makes up the vast majority of materials used in the construction sector due to its exceptional mechanical characteristics and outstanding long-term behaviour. However, in cement-based materials with a low water-to-binder ratio (w/b), excessive autogenous shrinkage has become a prevalent issue. This work suggests the sustainable use …
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The use of recycled asphalet pavement as partial replacement …
This study presented the use of Recycled Asphalt Pavement (RAP) as partial coarse aggregate replacement in concrete mix. The percentages of (RAP) as coarse aggregate replacement are 30%, 50%, and 70%. Amount of 2.5% superplasticizer is added to water
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Comparative Study on Natural and Recycled Concrete Aggregate …
Utilization of recycled concrete aggregates (RCA) as a replacement for natural aggregates in innovative concrete has gained fame around the world as a way to decrease natural aggregate use. ... FRCA and combination of both into the concrete mix with the replacement ratio 0%, 50%, and , respectively. He observed that the elastic modulus is ...
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Application of recycled waste glass to replace traditional …
DOI: 10.1016/j.jobe.2024.108846 Corpus ID: 267744186; Application of recycled waste glass to replace traditional quarried aggregates: A comprehensive review @article{Premathilaka2024ApplicationOR, title={Application of recycled waste glass to replace traditional quarried aggregates: A comprehensive review}, author={K.K.W. Premathilaka and …
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An experimental investigation and durability property on recycled …
Concrete is a matrix mixture in the 18th century this mix has become a revolutionary material and used in the site for construction, the latest replacement to fine aggregate has invented and is ...
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Expanding the Use of Recycled Concrete Aggregate (RCA)
At present, it is not practical to use RCA instead of natural aggregate (NA) in most construction projects. There are two key obstacles. First, RCA absorbs moisture at a higher rate. Second, excess quantities of adhered mortar may compromise performance. Porous adhered mortar weakens …
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Using Recycled Concrete as a Replacement for Coarse Aggregate …
Hebhoub et al. (), using the marble waste in the concrete manufacturing solves this problem environmentally and economically, especially with a 75% replacement value -of any formulation- under constant water to cement ratio.The use of the marble waste as replacement for coarse and fine aggregate separately or together leads to an increase in the concrete …
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Study on Properties of Cement Stabilized Macadam with Recycled …
With the increase of the proportion of recycled aggregate in cement stabilized macadam, the optimal moisture content required for the maximum dry density of fully recycled aggregate mixture ...
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Experimental investigation of concrete incorporating recycled …
Recycled concrete (RC) produced using recycled coarse aggregate (RCA) has been the subject of numerous studies. They studied the physical characteristics of RCA, replacement ratio, mixing and curing procedures, modification techniques, workability of fresh concrete, as well as the mechanical, durability, and long-term properties of hardened concrete …
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Using Recycled Concrete as a Replacement for Coarse …
However, the optimum mix can be obtained by replacement of fine aggregate by 20% and the replacement of coarse aggregate by 10%. Also, by increasing the powder …
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Performance evaluation of cement stabilized recycled mixture …
Performance evaluation of cement stabilized recycled mixture with recycled concrete aggregate and crushed brick. Author links open overlay panel Junhui Zhang, Cheng Li, Le Ding ... It is the reason why RA and cannot completely replace natural aggregates in cement stabilized mixture for the long-term mechanical properties. For three kinds of ...
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Studying the usability of recycled aggregate to produce new …
So far, among the technologies developed for the recycling of concrete waste, the use of a crushing machine to reduce the waste into particles of recycled aggregates is …
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A review on recycled concrete aggregates (RCA) …
In the view of this, increased environmental and financial concerns related to dumping construction and demolished waste (C&DW), using recycled concrete aggregates (RCA) as a replacement (partial ...
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A review on the influence of recycled plastic aggregate on …
A review on the influence of recycled plastic aggregate on the engineering properties of concrete. Author links open overlay panel Yong-Chang Guo, Xie-Mi Li, Jie Zhang, Jia-Xiang Lin. Show more. ... Use of waste plastic in concrete mixture as aggregate replacement. Waste Manag., 28 (2008), pp. 2041-2047. View PDF View article View in …
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(PDF) Concrete using recycled aggregates
The results reveal that recycled concrete with 50% replacement of natural coarse aggregates with recycled or reclaimed aggregates can have adequate fresh and hardened properties.
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Waste Glass in Concrete; Pros and Cons
The main reason why collected mix-color waste glass isn't recycled is due to its chemical composition. Typically, glass containers consist of sand, soda ash, limestone and cullet. Sand is glass's main component and is its source of silica. ... Even if you don't replace all the mineral aggregates with glass aggregate, the glass particles ...
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(PDF) Study on Mechanical Properties of Recycled Mixture …
Study on Mechanical Properties of Recycled Mixture with High Content of Iron Tailings Sand. ... which uses ITS and RAI as a new base course material to replace of new aggregates by . It is ...
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Incorporating coarse and fine recycled aggregates …
This research aims to assess the feasibility of using recycled concrete aggregates (RCA) as a surrogate for natural aggregates (NA) in concrete applications and reduce the environmental impact associated with …
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A comprehensive review on the use of recycled concrete …
Such aggregates are known as recycled concrete aggregates (RCA). The utilization of RCA in structural applications has been proven to be a common practice. It has …
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Recycled Coarse Aggregates in Concrete: A Comprehensive …
Results indicate a nuanced relationship between RCA replacement levels and concrete strength, with the optimal mixture at 25% RCA replacement (RCA 25) demonstrating …
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