Experimental Research on the Physical and Mechanical Properties of Concrete
with Recycled Plastic Aggregates

Wu, Haikuan; Liu, Changwu; Shi, Song; Chen, Kangliang

doi:10.32604/jrm.2020.09589

Cited by 9 publications

(3 citation statements)

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“…Li et al [18] found a maximum increase in compressive strength of 43% by treating rubber aggregates with SCA. A recent work conducted by Wu et al [19] revealed that recycled plastic aggregates pre-processed with SCA improve the strength of concrete by about 10% with respect to untreated particles. However, the eco-impact of using SCAs should be carefully addressed [13].…”

Section: Why Do Coatings Science and Surface Engineering Play A Cruci...mentioning

confidence: 99%

Functional Coatings and Surface Modifications in Cement–Matrix Composites

Sambucci

Valente

2022

Coatings

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Section: Why Do Coatings Science and Surface Engineering Play A Cruci...mentioning

confidence: 99%

Functional Coatings and Surface Modifications in Cement–Matrix Composites

Sambucci

Valente

2022

Coatings

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“…For example, there has been a surge in research in recent years into the use of waste plastic as a constituent in constructionrelated materials. In addition to recycled plastic drainage kerbs, development of paving blocks has received considerable attention [2][3][4][5][6] as have other concrete based materials [7][8][9][10]. Waste plastic has also been used as a replacement for cement [11], coarse [12,13] and fine [14,15] aggregates in concrete and for developing a plastic type binder in mortar [16].…”

Section: Introductionmentioning

confidence: 99%

A proposal to determine the distribution of lateral forces from loaded recycled plastic drainage kerbs

O'Flaherty

Al-Shawi

2021

SN Appl. Sci.

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This study presents a detailed analysis of the lateral forces generated as a result of vertically applied loads to recycled plastic drainage kerbs. These kerbs are a relatively new addition to road infrastructure projects. When concrete is used to form road drainage kerbs, its deformation is minimum when stressed under heavy axle loads. Although recycled plastic kerbs are more environmentally friendly as a construction product, they are less stiff than concrete and tend to deform more under loading leading to a bursting type, lateral force being applied to the haunch materials, the magnitude of which is unknown. A method is proposed for establishing the distribution of these lateral forces resulting from deformation under laboratory test conditions. A load of 400 kN is applied onto a total of six typical kerbs in the laboratory in accordance with the test standard. The drainage kerbs are surrounded with 150 mm of concrete to the front and rear haunch and underneath as is normal during installation. The lateral forces exerted on the concrete surround as a result of deformation of the plastic kerbs are determined via a strain measuring device. Analysis of the test data allows the magnitude of the lateral forces to the surrounding media to be determined and, thereby, ensuring the haunch materials are not over-stressed as a result. The proposed test methodology and subsequent analysis allows for an important laboratory-based assessment of any typical recycled plastic drainage kerbs to be conducted to ensure they are fit-for-purpose in the field.

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“…At present, the research on the performance index of the RLWAC and stress-strain equation (full curve) is in the preliminary stage [24,25]. Wongkvanklom et al [26] studied the influence of the RLWAC replacement ratio on the properties of structural lightweight concrete.…”

Section: Introductionmentioning

confidence: 99%

Compressive Mechanical Properties of a Novel Recycled Aggregate Concrete with Recycled Lightweight Aggregate

Zhou

Zhang

et al. 2021

Advances in Materials Science and Engineering

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A novel recycled aggregate concrete was prepared by replacing the natural aggregate with recycled lightweight aggregate. Subsequently, the mechanical properties and compressive stress-strain constitutive relation of the recycled lightweight aggregate concrete (RLWAC) were explored. For this purpose, the recycled lightweight aggregate (RLWA) replacement ratio (0%, 25%, 50%, 75%, and 100%) was selected as a variable, and the compressive strength of 15 cube and 30 prism specimens was evaluated. The failure morphology of the specimen was subsequently characterized, along with the cubic compressive strength, axial compressive strength, peak strain, ultimate strain, and other performance indices. The influence of the replacement ratio for the specimen indices of the RLWAC was also analyzed. It was observed that the dry apparent density of RLWAC decreased gradually on increasing the replacement ratio. Compared with 0% replacement ratio, a decrease of 6.50%, 11.39%, 21.84%, and 27.54% was observed, respectively. On enhancing the RLWA replacement ratio, the compressive strength, peak strain, and ultimate strain of RLWAC were observed to be gradually reduced. As the replacement ratio was increased from 75% to 100%, the peak strain was noted to decrease the most by about 6.8%. As the replacement ratio was increased from 50% to 75%, the ultimate strain decreased the most by about 14.2%. Based on the experimental findings, the functional relationships of the strength indices and the conversion value of each strength index with the replacement ratio were also established. Finally, based on the model proposed by the existing model, the stress-strain equation of RLWAC was developed, and the fitting results were observed to be in good agreement with the test results.

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Experimental Research on the Physical and Mechanical Properties of Concrete with Recycled Plastic Aggregates

Cited by 9 publications

References 0 publications

Functional Coatings and Surface Modifications in Cement–Matrix Composites

Functional Coatings and Surface Modifications in Cement–Matrix Composites

A proposal to determine the distribution of lateral forces from loaded recycled plastic drainage kerbs

Compressive Mechanical Properties of a Novel Recycled Aggregate Concrete with Recycled Lightweight Aggregate

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