Performance of fly ash concretes containing lightweight EPS aggregates

Babu, K. Ganesh; Babu, Daneti Saradhi

doi:10.1016/s0958-9465(03)00034-9

Cited by 82 publications

(16 citation statements)

References 4 publications

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“…The mixes containing PET with the larger particle size (3.34 mm) showed a lower slump when compared to the mixes with a smaller particle size of 2.23 mm and with a reference In the studies conducted by Dhanani and Bhimani [34] and Ramesan and Babu [35], where RWPA were used as coarse aggregate in the concrete, the results showed that the slump of concrete increased as the percentage of RWPA increased up to 40% (Figure 3). The increase in the slump shows that as the quantity of natural coarse aggregates decreased, and the quantity of recycled plastics increased, more water was made available from the mix due to reduced absorption by decreasing the quantity of natural aggregates, and low water absorption by recycled plastics [24,36]. Tang et al [37] reported a similar increase in the slump of coarse plastic aggregate lightweight concrete at a replacement level up to 40%.…”

Section: Workabilitymentioning

confidence: 99%

Engineering Properties of Concrete with Waste Recycled Plastic: A Review

et al. 2018

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The abundance of waste plastic is a major issue for the sustainability of the environment as plastic pollutes rivers, land, and oceans. However, the versatile behavior of plastic (it is lightweight, flexible, strong, moisture-resistant, and cheap) can make it a replacement for or alternative to many existing composite materials like concrete. Over the past few decades, many researchers have used waste plastic as a replacement for aggregates in concrete. This paper presents a comprehensive review of the engineering properties of waste recycled plastic. It is divided into three sections, along with an introduction and conclusion. The influence of recycled waste plastics on the fresh properties of concrete is discussed first, followed by its influence on the mechanical and durability properties of concrete. Current experimental results have shown that the mechanical and durability properties of concrete are altered due to the inclusion of plastic. However, such concrete still fulfills the requirements of many engineering applications. This review also advocates further study of possible pre-treatment of waste plastic properties for the modification of its surface, shape, and size in order to improve the quality of the composite product and make its use more widespread.

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Section: Workabilitymentioning

confidence: 99%

Engineering Properties of Concrete with Waste Recycled Plastic: A Review

et al. 2018

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“…The primary purpose of developing green high-performance light-weight aggregate concrete is to reduce the carbon footprint. It was reported that the LWAC can be prepared by using recycled materials as aggregate [10] and cementitious binders [11]. As a result, the following two aspects can be considered as the future development trends for the production of green high-performance light-weight aggregate concrete.…”

Section: Introductionmentioning

confidence: 99%

Green and Durable Lightweight Aggregate Concrete: The Role of Waste and Recycled Materials

et al. 2020

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Lightweight aggregate concrete manufactured by solid waste or recycled by-products is a burgeoning topic in construction and building materials. It has significant merits in mitigating the negative impact on the environment during the manufacturing of Portland cement and reduces the consumption of natural resources. In this review article, the agricultural and industrial wastes and by-products, which were used as cementitious materials and artificial lightweight aggregate concrete, are summarized. Besides, the mechanical properties, durability, and a few advanced microstructure characterization methods were reviewed as well. This review also provides a look to the future research trends that may help address the challenges or further enhance the environmental benefits of lightweight aggregate concrete manufactured with solid waste and recycled by-products.

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“…Previously, several studies were conducted on mix details, strength properties, drying shrinkage, creep, compaction & finishing etc. of the PAC [3,4,5,6,7]. However, these studies have been essentially related to PAC of lower strength.…”

Section: Introductionmentioning

confidence: 99%

Fracture Properties of Polystyrene Aggregate Concrete after Exposure to High Temperatures

2016

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This paper mainly reports an experimental investigation on the residual mechanical and fracture properties of polystyrene aggregate concrete (PAC) after exposure to high temperatures up to 800 degrees Celsius. The fracture properties namely, the critical stress intensity factor (KICS), the critical crack tip opening displacement (CTODC) for the Two-Parameter Model, and the fracture energy (GF) for the Fictitious Crack Model were examined using the three-point bending notched beam test, according to the RILEM recommendations. The effects of polystyrene aggregate (PA) content and temperature levels on the fracture and mechanical properties of concrete were investigated. The results showed that the mechanical properties of PAC significantly decreased with increase in temperature level and the extent of which depended on the PA content in the mixture. However, at a very high temperature of 800 °C, all samples showed 80 percent reduction in modulus of elasticity compared to room temperature, regardless of the level of PA content. Fracture properties of control concrete (C) and PAC were influenced by temperature in a similar manner. Increasing temperature from 25 °C to 500 °C caused almost 50% reduction of the fracture energy for all samples while 30% increase in fracture energy was occurred when the temperature increased from 500 °C to 800 °C. It was found that adding more PA content in the mixture lead to a more ductile behaviour of concrete.

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Performance of fly ash concretes containing lightweight EPS aggregates

Cited by 82 publications

References 4 publications

Engineering Properties of Concrete with Waste Recycled Plastic: A Review

Engineering Properties of Concrete with Waste Recycled Plastic: A Review

Green and Durable Lightweight Aggregate Concrete: The Role of Waste and Recycled Materials

Fracture Properties of Polystyrene Aggregate Concrete after Exposure to High Temperatures

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