In this paper, mix design of recycled aggregate concrete using packing density method is adopted. Since recycled fine aggregate used for the present study has same gradation as Indian standard sand so 100 % replacement for natural sand is made. ... (60 %) with 0 to recycled aggregate replacement ratios, and water-cement ratio of 0.55. The ...
PET utilization in the aggregate portion of the asphalt mixture can either be utilized as a partial/full substitute for a particular size of mineral aggregates or directly added to the mixture as an additive. ... (RCA) or recycled fine aggregate (RFA) as replacement [5]; the more common view is concrete with both RCA and RFA as replacements [6] ...
For around 70 years, research has showed that using recycled aggregates (RAs) from CDW to replace natural aggregates (NAs) in new concrete application as recycled …
The replacement rates of natural aggregates with recycled coarse aggregates were 0%, 10%, 15%, and 20%. The test samples were compressed to determine their strength value after 28 days of curing.
SCBA is used to replace fine aggregate (FA) ranging from 0 to 40% by weight of FA, while CBA is used to replace cement content ranging from 0 to 20% by weight of the total binder.
Concrete pavement recycling is an environmentally sustainable choice in terms of energy and other life-cycle impacts. It can reduce the mining, use, and transportation of aggregate, …
In spite of the amount of construction debris produced every year, recycled aggregates are still not commonly used in the concrete industry. A recycled aggregate …
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 ...
Recycled aggregate has become popular due to environmental preservation and the promotion of sustainable development concepts. Large volumes of solid trash are produced by demolished sites and restoration projects, and today, this …
Request PDF | Application of recycled coarse aggregate by mixture to concrete construction | With regard to the technology for producing aggregate of recycled concrete from concrete blocks, a ...
The use of waste material as a partial replacement has become popular in concrete mixture studies. Many research has utilized waste materials like cement, fine aggregate, coarse aggregate, and ...
Therefore, there is a need to develop sustainable concrete which either directly or indirectly reduces CO 2 emissions. One way to achieve this is by limiting the consumption of cement to the maximum extent, by partially replacing it with supplementary cementitious materials (SCMs), which are majorly industrial by-products and by optimizing the mix designs [21], [22], …
This paper examines the benefits of RAC from economic, social, environmental, and technological perspectives and discusses the replacement ratio (RR)—the weight percentage of natural aggregate replaced by recycled …
aggregate replacement and as cement replacement [56,57] Aggregate containing glass material can be created without any harmful consequence of alk ali-silica reaction if an adequate mix ratio ...
Researchers started utilizing recycled plastic waste as green, light-weight aggregates to replace, in part or in full, the natural aggregates of concrete. Using PET in concrete structures has led to savings in concrete and steel quantities of up to 7.23% and 7.18%, respectively, depending on the structural configuration of the building [ 126 ].
This study, based on a road resurfacing project in Shanxi Province, China, focused on the "iron tailings sand (ITS) plus reclaimed inorganic binder stabilized aggregate (RAI)" solid waste treatment method, which uses special cementitious material to stabilize ITS and RAI as a new base course material and aims to replace new aggregates by ...
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].
This research study investigates the effect of using recycled coarse aggregate (RCA) as a substitute of natural coarse aggregate (NCA) on the mechanical properties of concrete.
M040 aggregate (a); M040 CDM aggregate (b); FM040 steel slag and CDM (c); oven slug (d).2.2. Steel Slag in Asphalt Layer. Concerning the asphalt layer, starting from a mixture of bituminous conglomerate defined as "M0" as a reference, the aim of this phase was optimizing the quantity of slag in an asphalt mixture and, subsequently, to identify for this mixture the …
Enforced carbonation of recycled concrete aggregate (RCA) is a growing technology with enormous potential. This carbonation treatment uses CO 2 to improve the …
Studies have demonstrated that using recycled PET as an alternative to natural aggregates in asphalt mixtures improves the pavement's mechanical strength and resistance to permanent …
Another waste material used in construction, recycled concrete aggregate (RCA) is a sustainable alternative to newly mined aggregate in concrete manufacturing that provides the ability to replace up to 25% of the …
Aggregates constitute about 60-80% of a typical concrete mix. Now, research shows that it is possible to replace natural aggregates with RCA, as long as a relatively small amount of graphene is added. Long term, the viability of …
PDF | On Aug 23, 2019, Punkorn Cheewawutwatanawit published Application of Recycled Structural Concrete to Replace of Coarse Aggregate under the Building Control Laws and Construction Standards ...
