Production of Construction Bricks by Partial Replacement of Waste Plastics

Kumar, K. Prem; Gomathi, M.

doi:10.9790/1684-1404020912

Cited by 15 publications

(3 citation statements)

References 1 publication

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“…Providing mortar composite with plastic fibers may improve the thermomechanical properties, as increasing tensile strength, decreasing micro cracking and increasing thermal insulation. [24] In addition, replacing natural aggregates as sand with plastic waste decreases the unit weight of concrete, due to the lightweight of PW. Lightweight material has great benefits in construction; it reduces transportation, thermal insulation, cost and manufacturing time.…”

Section: Discussionmentioning

confidence: 99%

A Review on Sustainable Disposal of Plastic Waste by Integration in Construction Materials

El-Metwally¹,

Dewidar²,

Ismail³

et al. 2023

cea

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Over the last decades, plastic waste (PW) has increased exponentially and has become a serious threat to our planet, aquatic system and human health. Recycling or reusing PW in producing ecofriendly materials is an efficient solution to reduce plastic pollution and to minimize the depletion of raw materials as well. Previous studies have shown promising potentials of using PW in the construction sector, such as binder, aggregate, or substitute of cement and sand in concrete, brick or mortar. Laboratory results indicate that implementing plastic waste as aggregates in cement composites obtains higher thermal resistance and acoustical performance. However, a reduction in the compressive strength has been noticed with the increase of the PW content. Therefore, this study attempts to identify the optimum acceptable plastic waste content to be involved in the construction material in order to enhance its thermal resistance without jeopardizing the compressive strength. The aim of this study is achieved through a systematic review identified by keywords. Papers that did not include plastic waste reuse in construction material were eliminated. The inclusion criteria were based on the latest studies from 2012 that investigated the impact of plastic waste on thermal conductivity and compressive strength. A comparative analysis is then conducted on the eligible papers focusing on the used type, particle size and percentages of the applied PW and the impact on the thermal conductivity and the compressive strength. This review presents possibilities of reusing plastic waste to develop lightweight composites with better thermal capabilities and acoustical performance which enhance the building energy performance and create a more ecofriendly and sustainable environment. However, only a limited amount of plastic is allowable to be used to avoid the deterioration of the compressive strength.

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Section: Discussionmentioning

confidence: 99%

A Review on Sustainable Disposal of Plastic Waste by Integration in Construction Materials

El-Metwally¹,

Dewidar²,

Ismail³

et al. 2023

cea

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“…In fact, the presence of a high proportion of EPS beads increases the number of pores and voids in the bricks [23], leading to increased water migration into the CEB. Indeed, several studies have shown that the incorporation of plastic aggregates in bricks leads to an increase in the water absorption rate of the bricks [23,[34][35][36][37]. This increase would be due to the inclusion of heterogeneities by the plastic, which would probably make the materials more porous.…”

Section: Water Absorptionmentioning

confidence: 99%

Effects of Recycled Expanded Polystyrene Beads on the Mechanical and Physical Properties of Cement-Stabilized Compressed Earth Bricks

Kougoum,

Tatchum,

Koungang

et al. 2023

Advances in Civil Engineering

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Nowadays, research on environmentally friendly materials has become a significant challenge in the field of civil engineering. In this study, stabilized compressed earth bricks (CEBs) incorporating recycled expanded polystyrene (EPS) beads were studied with the aim of enhancing the development of green constructions. The mass contents of recycled EPS in CEB formulated at a compaction pressure of 5 MPa are 0%, 0.25%, 0.5%, 0.75%, and 1% relative to the mass of the soil, while cement type CEM I 32.5, as a stabilizer, constituted 8% by mass. Characterization was carried out by determining densities, dry and wet compressive strength, flexural strength, total water absorption, and capillarity. Sample properties were found to be strongly influenced by the percentage of recycled EPS. Increasing the EPS aggregate content led to a reduction in compressive strength in both wet and dry conditions. Samples with 0.5% EPS and 8% cement offered better physical and mechanical performance. Samples containing EPS had relatively low water absorption, which would contribute to good durability. These CEBs comply with the wall construction requirements for two-story dwellings. This study also demonstrates the potential use of this recycled material in the construction industry.

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“…In order to overcome this environmental pollution, the researchers are working on replacement of cement with other materials in fly ash bricks, thereby reducing the content of cement. Kumar and Gomathi [1] analysed the compressive strength of bricks manufactured using fly ash, sludge lime, gupsum, sand and plastic waste materials. They used plastics such as high density polyethylene (HDPE) and polyethylene (PE) bottles and bags for the manufacturing process.…”

Section: Introductionmentioning

confidence: 99%

Performance of Fly Ash Bricks with Differential Composition

Harshini*¹,

Abinaya²,

Manikandan³

et al. 2019

IJITEE

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Flyash is one of the largest emerging products in the construction industry. The fly ash is the by-product which is widely used in brick manufacturing plant. The flyash reduces the cement content and also overcomes several disadvantages. Simply, it is a step towards eco-friendly environment. Though the flyash brick has many advantages, it has lower strength at initial stages due to low hydration. In this study, the experimental investigation was carried out to find the optimum mix ratio of various compositions of fly ash bricks. The brick specimens were casted on different compositions of cement, flyash, eco-sand and various other admixtures. On addition of these admixtures the early compressive strength was also high and a quick hydration was observed. The tests were conducted on 3rd, 5th, 7th and 28th day. The results suggest that the maximum strength was obtained for the composition of fly ash, ecosand, cement and silica fume.

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Production of Construction Bricks by Partial Replacement of Waste Plastics

Cited by 15 publications

References 1 publication

A Review on Sustainable Disposal of Plastic Waste by Integration in Construction Materials

A Review on Sustainable Disposal of Plastic Waste by Integration in Construction Materials

Effects of Recycled Expanded Polystyrene Beads on the Mechanical and Physical Properties of Cement-Stabilized Compressed Earth Bricks

Performance of Fly Ash Bricks with Differential Composition

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