Manufacture of Concrete Paver Block Using Waste Materials and by-Products: A Review

Mohamad, Habib Musa

doi:10.21660/2022.93.j2363

Cited by 10 publications

(8 citation statements)

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“…8, it can be seen that the replacement of sand by LDPE and PET plastic waste causes a decrease in the compressive strength of paving blocks. The reason for this reduction in strength is associated with the smooth surface of the plastic which reduces the adhesion between plastic particles and cement paste [21,22].…”

Section: The Compressive Strength Of Paving Block Using Plastic Waste...mentioning

confidence: 99%

The Effect of Pet and Ldpe Plastic Wastes on the Compressive Strength of Paving Blocks

2023

GEOMATE

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Plastic is one of the most common environmental problems in the world. One way to reduce plastic waste is by reusing it to produce other materials such as partial replacement of sand in paving blocks mixture. Paving blocks (concrete brick) are a building material made of a mixture of water, aggregate, and portland cement. An experimental study was carried out to investigate the effect of low-density polyethylene (LDPE) plastic and polyethylene terephthalate (PET) plastic as a substitute for fine aggregates on the compressive strength of paving blocks. In this study, paving blocks are planned to be off plan C quality with a minimum compressive strength of 12.5 MPa, which is usually used as a pedestrian facility. Plastic wastes (LDPE and PET) are used as a partial replacement for fine aggregates, with 0%, 5%, 10%, and 15% volume variations of the fine aggregate. In addition, fly ash was added to LDPE mixtures (LDPEF) with the fly ash content used is 15% by replacing the weight of cement. The compressive strength test was carried out on cylinder specimens of 150 mm diameter and 300 mm length. The results show that the use of LDPE and PET plastic wastes as a partial replacement of fine aggregate decreased the compressive strength by 35.26%; 37.69%; 40.68% for LDPE, 34.15%; 52.22%; 56.53% for PET, and 23.14%; 18.01%; 24.65% for LDPEF, respectively. However, the compressive strength result of the tested paving blocks predominantly exceeds the minimum requirement for compressive strength of paving blocks quality C, 12.5 MPa.

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Section: The Compressive Strength Of Paving Block Using Plastic Waste...mentioning

confidence: 99%

The Effect of Pet and Ldpe Plastic Wastes on the Compressive Strength of Paving Blocks

2023

GEOMATE

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“…Plastic shopping bags have become an important topic of discussion in the world of waste management in Indonesia because they are cheap, easy to find, and easy to use, so they have become an inseparable part of human life. Almost all foods, goods, and their packaging use plastics and plastic bags [4,5].…”

Section: Introductionmentioning

confidence: 99%

Consumer Behavior Towards Environmental Policy for Paid Plastic Shopping Bags in Traditional Markets of Padang City

Yulius,

Dewata,

Heldi

et al. 2024

IJEI

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This research aims to analyze the characteristics of consumer behavior regarding the use of shopping bags and the factors that influence it based on an environmental approach. The method in this research is based on ten (10) factors from the Theory of Planned Behavior (TPB) model to understand the behavior of carrying shopping bags instead of using plastic bags based on ten (10) variables namely; 1) Attitude (AT); 2) Subjective Norms (SN); 3) Perceived Behavioral Control (PBC); 4) Environmental Concern (EC); 5) Personal Norms (PN); 6) Response Efficacy (RE); 7) Self-efficacy (SE); 8) Behavioral Intention (BI); 9) Anti-Plastic Bag Behavior (APB); and 10) Behavioral Willingness (BW). The results show a significant relationship between trustworthy AT, SN, PBC, EC, PN, and SE. This is evident from the significance value (sig) which is less than 0.05, indicating a fairly high level of confidence. Overall, the results of the research provide a better understanding of the factors that influence consumer decisions in carrying shopping bags, especially among BI consumers. The implications of these findings can be used as a basis for developing more effective strategies for promoting more eco-friendly and sustainable behavior in the future.

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“…Mohamad [23] supported the use of waste materials such as plastics, steel slag, and crushed rubber as partial replacements for aggregates in the manufacturing of concrete paving blocks. Studies indicate that paving blocks with up to 50% steel slag exhibit superior compressive strength compared to conventional paving blocks.…”

Section: Introductionmentioning

confidence: 99%

Natural Aggregate Substitution by Steel Slag Waste for Concrete Manufacturing

Es-samlali

2024

GEOMATE

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The release of steel slag into the environment has substantial repercussions, simultaneously affecting both the ecosystem and the economy. Therefore, the management and recovery of this waste demand careful consideration. In the context of the circular economy, this study aims to explore the feasibility of utilizing steel slag waste as a substitute aggregate for natural coarse and fine aggregates in the production of high-quality concrete. Throughout this research, concrete mixtures were developed by varying natural aggregate substitution rates with steel slag waste at 0, 25, 50, 75, and 100%. Comprehensive tests, encompassing physical, mineralogical, chemical, and mechanical analyses, were conducted on the steel slag waste to ascertain its primary technical properties. In all mixtures incorporating steel slag waste, compressive strength tests consistently revealed values surpassing those of the reference concrete. Notably, there were improvements of approximately 12% for coarse aggregate substitution and 32% for sand substitution. Assessments of flexural strength at 7 and 28 days underscored the substantial positive influence of fine and coarse aggregate substitution, especially at a 50% fine aggregate replacement, contributing significantly to enhanced flexural strength compared to conventional concrete. Furthermore, laboratory examinations indicated that the 28-day compressive and flexural strength, as well as water absorption of concrete, increased with slag content, albeit at the expense of reduced workability. Ultimately, the findings demonstrate the effective utilization of slag as a replacement for natural aggregates, maintaining the compressive and flexural strength of the concrete.

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Manufacture of Concrete Paver Block Using Waste Materials and by-Products: A Review

Cited by 10 publications

References 0 publications

The Effect of Pet and Ldpe Plastic Wastes on the Compressive Strength of Paving Blocks

The Effect of Pet and Ldpe Plastic Wastes on the Compressive Strength of Paving Blocks

Consumer Behavior Towards Environmental Policy for Paid Plastic Shopping Bags in Traditional Markets of Padang City

Natural Aggregate Substitution by Steel Slag Waste for Concrete Manufacturing

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