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20211028 · In this paper, a comprehensive literature review was conducted on the utilization of recycled concrete aggregate (RCA), which is the dominant construction and demolition waste material, in base and subbase layers and its comparison with natural aggregate (NA). The effects of crushing on the particles as a result of the compaction on …
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2018530 · content, the carbon footprint of the mix with 0.5 w/c was. 25% higher than that of the mix with 0.7 w/c. e carbon. footprint of all the analyzed mixes decreased to a small. extent as the coarse ...
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202249 · Construction and demolition waste (CDW) management is essential for the sustainable development of a country. Recycled concrete aggregates (RCA) manufactured from CDW can replace a significant portion of natural aggregates in concrete as per various research studies conducted. Nowadays, various alternate waste materials are being …
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201331 · Recycled Concrete Aggregates: A Review. Katrina McNeil. 1) , and Thomas H.-K. Kang. 2), *. (Received December 30, 2012, Accepted January 27, 2013) Abstract: This paper discusses the properties of ...
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2018220 · A summary of the effect of seashell waste inclusion on the workability of mortar and concrete is given in Table 3. In general, the inclusion of seashell waste as aggregate in mortar or concrete reduced the respective workability. This was attributed to a few main reasons, namely, the irregular particle shape, which promotes particle friction ...
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2021815 · Although limestone contains abundant Ca 2+, Al 3+ and Fe 3+, its porosity of 43.1% was lower than that of the recycled concrete aggregates, recycled brick aggregates and recycled concrete and brick aggregate mixture (with a porosity of 50.7%, 58.3% and 56.2%, respectively), resulting in a lower than 50% TP removal efficiency of LIM that was ...
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2014228 · The use of OPS as a lightweight aggregate for producing lightweight concrete was explored as early as 1984 by Abdullah [20] in Malaysia and by Okafor [16] in Nigeria. In most cases, it has been shown that the compressive strength of OPS lightweight concrete, with and without cementitious materials, is within the typical compressive …
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2023121 · 1. Introduction. In recent decades, large amount of construction and demolition (C&D) wastes are generated owing to the accelerated urbanization (Shin & Kim, 2022).Concrete waste accounts for the largest proportion (60–70 %) of C&D wastes, and it is predicted to reach 7,750 million tons by 2050 (Huang et al., 2020).Usually, concrete …
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Recycled Coarse Aggregate from Concrete Waste Using DMDA for Concrete H A R Canseco-Tuñacao1,3, K Remoto2, ... Philippines, the country aims to ensure an annual spending on infrastructure to be at least 7.4% of GDP in 2022 for the last year of its “Golden Age of Infrastructure” [1]. Concrete, being the most generally
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