This work is devoted to the study of fresh and hardened properties of concrete containing recycled gravel. Four formulations were studied, the concrete of …
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for industry professionals to adopt this new Singapore Standard in the design and construction of buildings. ... the use of recycled aggregates in concrete. BS 8500 contains requirements for both the use and testing of recycled concrete aggregates and recycled aggregates.
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Recycled Aggregate can be used in the following constructions. Can be used for constructing gutters, pavements etc. Large pieces of crushed aggregate can be used for building revetments which in turn is very useful in controlling soil erosion. Recycled concrete rubbles can be used as coarse aggregate in concrete.
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Systematic application Particle Packing Method and Indian codes of practice for mix design of recycled aggregate concrete. • Overcoming the inferiority of recycled aggregate concrete using Particle Packing Method. • Comparative studies of experimental results with existing literature and codes. •
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Due to the specific gravity of recycled brick aggregate (RBA) is less than that of natural aggregate (NA), the traditional mix proportion design of co…
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Pervious concrete is a tailored-property concrete with high water permeability which allow the passage of water to flow through easily through the existing interconnected large pore structure. This paper reports the results of an experimental investigation into the development of pervious concrete with reduced cement content …
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The multi-objective optimization design of recycled aggregate concrete mixture proportions based on machine learning and NSGA-II algorithm is carried out. • The influence factors on compressive strength of recycled aggregate concrete are analyzed.
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The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for …
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Due to the complex component of coarse aggregate used in mixed recycled aggregate concrete (MRC), the conventional mix design method is not …
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Date: 9/1/2013. Abstract: This paper investigates the workability, compressive strength, and elastic modulus of normal-strength concrete with recycled concrete aggregate (RCA) …
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Utilization of recycled brick aggregate (RBA) in concrete production is limited due to its high porosity, which negatively affects the strength and du…
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The use of recycled aggregate has been explored to lead to a sustainable future as it provides an alternative to traditional natural concrete. Experimental investigations showed that concrete using recycled aggregate compared to natural aggregate have lower strength.
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This study proposes a new mix design method for C30 recycled concrete using recycled aggregate crushed from different strength source concrete (SC). The …
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In this study, the characteristics of recycled aggregate concrete according to the mixing ratio of recycled coarse aggregate(RCA) were analyzed for different design strengths to explore the use of recycled materials in the production of ready-mixed concrete. The results show that, depending on the ratio of recycled aggregate, the …
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A novel sustainable pervious concrete containing waste materials as aggregates is developed. • Combined use of waste glass and recycled concrete aggregates in pervious concrete is feasible.
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The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for …
ادامه مطلب
Instead, it is expected to propose an intelligent mix design method for recycled brick aggregate concrete based on multiple perspectives (carbon emissions, cost and mechanical properties) so that to (1) solve the problems of poor applicability of mix design methods caused by differences in aggregate performance; (2) utilizing the full …
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Keywords: recycled concrete aggregate, water absorption, residual mortar, aggregate properties, concrete material properties, structural performance. 1. Introduction. After demolit ion of old ...
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Replacing natural aggregate (NA) with recycled aggregate (RA) has contributed to the trend of sustainable development in civil construction. With this background, improvements in the mechanical properties of recycled aggregate concrete (RAC) and the scientific design of the mixture ratio are attracting more concern in recent …
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One such solution is the development of geopolymer binder with recycled aggregate concrete, which can reduce the consumption of ordinary Portland cement and natural aggregates. This study aimed to improve the quality of high-strength recycled aggregates geopolymer concretes by incorporating metakaolin in varying percentages …
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Design Strategy for Recycled Aggregate Concrete: A Review of Status and Future Perspectives Natt Makul 1, Roman Fediuk 2, *, Mugahed Amran 3,4, Abdullah M. Zeyad 5, Sergey Klyuev 6, Irina ...
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Crushed concrete is a great way to build driveways, pathways, garden beds and more. Learn all about how and why should use recycled crushed concrete.
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Currently, a number of disadvantages hampers the use of recycled concrete aggregates (RCA). The current review proves that concretes made with complete replacement of natural aggregate with RCA ...
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High-quality recycled aggregates, when used in combination with SCMs, can lead to more substantial improvements in compressive strength than lower-quality aggregates (D. Wang et al., 2023). Recycled aggregate (RA) used in concrete presents a sustainable and environmentally responsible approach to construction material usage.
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AbstractRecycled aggregate concrete (RAC) has been gradually used in practical engineering owing to the maturity of waste-concrete recycling technology. However, the disposal of waste RAC in different environments remains challenging. Second-generation ...
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High-strength recycled aggregate concrete (HSRAC) has been extensively studied in terms of mix design, properties, models, and structural behaviour. H…
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Extensive use of cement in the construction industry increases CO2 emissions and has a negative impact on the environment. In this work, recycled coarse aggregate (RCA) from construction and demolition wastes (C&DW) was used to fabricate sustainable pervious concrete (PC). In order to mitigate the environmental hazards of …
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Replacement of natural aggregates by concrete road recycled aggregates in the mix design of concrete is a solution to decrease nature depletion. Natural concrete slabs were cured in water, sea water, chloride solutions or sulphate solutions and then crushed to obtain and contaminated (polluted) recycled aggregates.
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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 aggregate (NA) partially or completely [1].
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AbstractA large amount of research has been conducted on recycled aggregate concrete (RAC) due to its social, environmental, and economic significance. However, the in situ application of RAC has so far been mainly limited to nonstructural purposes, as ...
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AbstractThe construction sector is mainly accountable for the diminishing of natural resources and environmental imbalances due to unplanned mining activities. In this context, use of recycled fine aggregate (RFA) from …
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High-strength recycled aggregate concrete (HSRAC) has been extensively studied in terms of mix design, properties, models, and structural behaviour. H…
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The environmental impact of three types of concrete products ( aggregate concrete, recycled aggregate concrete, and CO 2 Concrete) using the same mix design but different ratios of cement and aggregate and with and without chemical additives, were assessed by the CML 2001 (baseline) method. Two functional units, one …
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The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for …
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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 demand and supply. This paper aims to systematically review the modification of RCA techniques and their application in …
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