Cellular Concrete Bricks with Recycled Expanded Polystyrene Aggregate

Hernández-Zaragoza, Juan Bosco; López-Lara, Teresa; Rangel, Jaime; López-Cajún, C. S.; Rojas, Eduardo; Rodríguez, Francisco Javier García; Adue, Jorge

doi:10.1155/2013/160162

Cited by 20 publications

(7 citation statements)

References 10 publications

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“…This implies that applying thermal treatment on polystyrene foam particles helped in enhancing their strength. The results showed that MEPS aggregate in (FCM25) helped in increasing the compressive strength by about 68% of that of conventional foamed concrete (FC12 mix), see Figure 4b, noted that a similar behaviour was noticed by Hernández et al [20]. It was found that the crashing load of MEPS aggregate particle was higher than that of expanded aggregate particle (EPS) by about 20 times, which results in gaining compressive strength for mixes containing MEPS higher than that of EPS mixes.…”

Section: Compressive Strengthsupporting

confidence: 76%

Effect of Expanded Polystyrene Foam Aggregate on Strength and Shrinkage Characteristics of Foamed Concrete

Obaid¹,

Hilal²

2022

cea

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A study has been undertaken to assess some characteristics of foamed concrete, with a given density of 1200 kg/m 3 , made with expanded polystyrene foam aggregate (EPS). In addition, EPS particles were thermally treated to produce modified expanded polystyrene foam aggregate (MEPS). Thermally treating approach was applied as an effective method to enhance strength of expanded polystyrene foam particles leading to enhance the properties of produced concrete. To investigate the effect of foam presence, normal concrete mix was designed and compared with foamed concrete mix produced with the same mortar content. Properties such as compressive strength, tensile strength and drying shrinkage were assessed. It was found that adding recycled expanded polystyrene foam (EPS) as aggregates helped in slightly enhancing both the strength and shrinkage of foamed concrete. However, thermally treated of EPS to produce MEPS particles resulted in increasing the compressive and tensile strengths by about 68% and 79%, respectively; and reducing the shrinkage by about 52% of that of conventional foamed concrete mix, without EPS. In addition, adding polystyrene aggregates in both states (EPS and MEPS) slightly reduced the spread diameter.

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Section: Compressive Strengthsupporting

confidence: 76%

Effect of Expanded Polystyrene Foam Aggregate on Strength and Shrinkage Characteristics of Foamed Concrete

Obaid¹,

Hilal²

2022

cea

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“…In terms of reuse, bricks obtained by recycled XPS aggregate, instead of mineral sands, obtained good performances (Bosco Hernández-Zaragoza et al., 2013), and a permeability coefficient decrease with the increase in consolidation pressures and curing age (Zhu and Ma, 2015).…”

Section: Main Textmentioning

confidence: 99%

Resource or waste? A perspective of plastics degradation in soil with a focus on end-of-life options

Scalenghe

2018

Heliyon

112

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‘Capable-of-being-shaped’ synthetic compounds are prevailing today over horn, bone, leather, wood, stone, metal, glass, or ceramic in products that were previously left to natural materials. Plastic is, in fact, economical, simple, adaptable, and waterproof. Also, it is durable and resilient to natural degradation (although microbial species capable of degrading plastics do exist). In becoming a waste, plastic accumulation adversely affects ecosystems. The majority of plastic debris pollutes waters, accumulating in oceans. And, the behaviour and the quantity of plastic, which has become waste, are rather well documented in the water, in fact. This review collects existing information on plastics in the soil, paying particular attention to both their degradation and possible re-uses. The use of plastics in agriculture is also considered. The discussion is organised according to their resin type and the identification codes used in recycling programs. In addition, options for post-consumer plastics are considered. Acknowledged indicators do not exist, and future study they will have to identify viable and shared methods to measure the presence and the degradation of individual polymers in soils.

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“…Aerated concretes are a variation within lightweight concretes that have a specific mass between 320-1920 kg/m 3 and a compressive strength above 1.5 MPa [24]. Lightweight concretes can be obtained by the use of lightweight aggregates in the mixture or by the incorporation/production of air in the form of bubbles distributed into the mortar [25,26]. The lightweight concretes known as autoclaved aerated concrete (AAC) are those that are produced with bubbles of air inside the mortar via a chemical reaction process activated by curing in an autoclave [27].…”

Section: Introductionmentioning

confidence: 99%

Characterization and Use of Construction and Demolition Waste from South of Brazil in the Production of Foamed Concrete Blocks

et al. 2017

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Featured Application: The use of construction and demolition waste (CDW) in the development of building materials has been done constantly. The CDW from Passo Fundo region of Rio Grande do Sul/Brazil can be used in development of foamed concrete fully replacing the natural sand. Abstract:The main objective of this study was to evaluate the use of construction and demolition waste (CDW) from the Passo Fundo region of Rio Grande do Sul (RS), Brazil, in the development of aerated foamed concrete. This waste had not yet been characterized or even reused. CDW was processed (sieved only), characterized, and used as an aggregate, completely substituting natural sand. The influence of CDW granulometry and the amount of foam upon compressive strength, wet and dry bulk density, water absorption, and the air voids of concrete blocks were determined. Results showed that CDW has regular characteristics for the development of aerated foamed concrete. Compressive strength and density decreased as the amount of foam increased, while water absorption and air voids also increased. Also, CDW that was classified as coarse showed higher compressive strength. On average, CDW medium-sized particles had a higher air void content, while water absorption showed little variation with respect to granulometry. CDW residue from the region of study can be used as aggregate for the development of aerated foamed concrete. However, it must characterized before being used to guarantee the quality of the final product.

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Cellular Concrete Bricks with Recycled Expanded Polystyrene Aggregate

Cited by 20 publications

References 10 publications

Effect of Expanded Polystyrene Foam Aggregate on Strength and Shrinkage Characteristics of Foamed Concrete

Effect of Expanded Polystyrene Foam Aggregate on Strength and Shrinkage Characteristics of Foamed Concrete

Resource or waste? A perspective of plastics degradation in soil with a focus on end-of-life options

Characterization and Use of Construction and Demolition Waste from South of Brazil in the Production of Foamed Concrete Blocks

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