Viability of agricultural wastes as substitute of natural aggregate in concrete: A review on the durability-related properties

Mo, Kim Hung; Thomas, Blessen Skariah; Yap, Soon Poh; Abutaha, Fuad; Tan, Chee Ghuan

doi:10.1016/j.jclepro.2020.123062

Cited by 54 publications

(15 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Increase in construction activities has led to a rapid depletion of natural resources, particularly aggregates which are utilized in the production of mortars and concrete [ 3 ]. The depletion grow is doubling annually, according to a report by Transparency Market Research, reaching 2.2 billion tons by 2025 [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces

et al. 2021

View full text Add to dashboard Cite

The large increase in the world population has resulted in a very large amount of construction waste, as well as a large amount of waste glycerol from transesterification reactions of acyl glycerides from oils and fats, in particular from the production of biodiesel. Only a limited percentage of these two residues are recycled, which generates a large management problem worldwide. For that reason, in this study, we used crude glycerol as a carbon source to cultivate polyhydroxyalkanoates (PHA)-producing mixed microbial cultures (MMC). Two bioproducts derived from these cultures were applied on the surface of concrete with recycled aggregate to create a protective layer. To evaluate the effect of the treatments, tests of water absorption by capillarity and under low pressure with Karsten tubes were performed. Furthermore, SEM-EDS analysis showed the physical barrier caused by biotreatments that produced a reduction on capillarity water absorption of up to 20% and improved the impermeability of recycled concrete against the penetration of water under pressure up to 2.7 times relative to the reference. Therefore, this bioproduct shown to be a promising treatment to protect against penetration of water to concrete surfaces increasing its durability and useful life.

show abstract

Section: Introductionmentioning

confidence: 99%

Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces

et al. 2021

View full text Add to dashboard Cite

show abstract

“…In another study, Mo et al [31] investigated the use of solid agricultural waste in concrete production. According to them, the increase in construction activities has led to the rapid depletion of natural resources, especially aggregates used in the production of concrete.…”

Section: 3agricultural Wastementioning

confidence: 99%

A Bi-Level Model for a Closed-Loop Agricultural Supply Chain Considering Biogas and Compost

Cheraghalipour

Roghanian

2021

Preprint

View full text Add to dashboard Cite

In today's competitive marketplace, to increase customer satisfaction and profitability, supply chain management has become more prominent. Therefore, thorough planning and designing the supply chain by seeing all levels and units are essential to growing the efficiency of the entire supply chain. In the present study, an eight-echelon network is designed for a closed-loop agricultural supply chain. These eight echelons are consist of suppliers, farms, distribution centers (DCs), customers, recycling depots, biogas centers, compost production centers, and biogas applicants. To design the agricultural logistics network, a bi-level programming mathematical model is presented that optimizes the network costs and profits. Also, some meta-heuristics and hybrid meta-heuristics are applied for solving the formulated problem. It should be noted that bi-level programming problems are part of the NP-hard class and due to the computational complexity of the problems, the meta-heuristic algorithms are utilized. Finally, various comparisons and analyses are performed to evaluate the model's performance and the capabilities of the solution methods.

show abstract

“…This has created the need for more sustainable and economical alternative aggregate materials. Reusing of recycled aggregate or waste material can be regarded as a promising approach [2]. However, due to further processing of recycled aggregate [3] and durabilityrelated issue [4,5], the use of recycled aggregate is not favourable.…”

Section: Introduction 1sustainable Aspect Of Agricultural Wastementioning

confidence: 99%

Behaviour of Lightweight Concrete Wall Panel under Axial Loading: Experimental and Numerical Investigation toward Sustainability in Construction Industry

et al. 2021

View full text Add to dashboard Cite

Awareness of sustainability in construction has led to the utilization of waste material such as oil palm shell (OPS) in concrete production. The feasibility of OPS as alternative aggregates in concrete has been widely studied at the material level. Meanwhile, nonlinear concrete material properties are not taken into account in the conventional concrete wall design equations, resulting in underestimation of lightweight concrete’s wall axial capacity. Against these sustainability and technical contexts, this research investigated the buckling behavior of OPS-based lightweight self-compacting concrete (LWSCC) wall. Failure mode, load-deflection responses, and ultimate strength were assessed experimentally. Numerical models have been developed and validated against experimental results. Parametric studies were conducted to study the influence of parameters like slenderness ratio, eccentricity, compressive strength, and elastic modulus. The results showed that the axial strength of concrete wall was very much dependent on these parameters. A generalized semi-empirical design equation, based on equivalent concrete stress block and modified by mathematical regression, has been proposed. The ratio of average calculated results to test results of the proposed equation, when compared to ACI 318, AS 3600, and Eurocode 2 equations, are respectively improved from 0.36, 0.31, and 0.42 to 0.97. This research demonstrates that OPS-based LWSCC concrete can be used for structural axial components and that the equation developed can serve a good guideline for its design, which could encourage automation and promote sustainability in the construction industry.

show abstract

Viability of agricultural wastes as substitute of natural aggregate in concrete: A review on the durability-related properties

Cited by 54 publications

References 54 publications

Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces

Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces

A Bi-Level Model for a Closed-Loop Agricultural Supply Chain Considering Biogas and Compost

Behaviour of Lightweight Concrete Wall Panel under Axial Loading: Experimental and Numerical Investigation toward Sustainability in Construction Industry

Contact Info

Product

Resources

About