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61,005 resultsShowing papers similar to Evaluation of toxicity and genotoxicity of concrete cast with steel slags using higher terrestrial plants
ClearPreparation of phosphogypsum ecological concrete and study on its phytogenic properties
Researchers developed an ecological concrete using phosphogypsum and electrolytic manganese slag that supports plant growth while effectively immobilizing heavy metals. The concrete achieved good mechanical performance and porosity, and plants grown on it showed 30% increased root length and 25% improved biomass compared to controls. While focused on construction materials, the study contributes to sustainable approaches for recycling industrial waste that might otherwise become sources of environmental contamination.
Investigating the ecotoxicity of construction product eluates as multicomponent mixtures
Researchers tested 27 construction products for ecotoxicity using leaching tests and bioassays, finding that grouts and cork granules released the most toxic eluates, and demonstrated that ecotoxicity testing effectively captures the combined effect of all leachable substances from complex materials.
Utilization of plastic waste as replacement of natural aggregates in sustainable concrete: effects on mechanical and durability properties
Researchers tested concrete made with recycled polyethylene and PET plastic aggregates substituted for natural sand and gravel, finding that while plastic additions reduced compressive strength and increased water permeability, they improved impact resistance and chloride resistance, with PET concrete showing no microplastic leaching.
A Step towards Sustainable Concrete with Substitution of Plastic Waste in Concrete: Overview on Mechanical, Durability and Microstructure Analysis
This review evaluates the use of plastic waste as a substitute material in concrete, analyzing its effects on mechanical strength, durability, and microstructure to assess its viability as a sustainable construction approach.
The Impact of Recycled Polyethylene Terephthalate as Aggregate Replacement on Mechanical and Ecotoxicological Properties of Mortar
Researchers tested mortar made with recycled PET plastic replacing some of the natural aggregate and found that it maintained comparable compressive strength while passing ecotoxicity tests with plants. The study suggests that incorporating recycled plastic waste into construction materials could be a viable way to reduce plastic in landfills without creating significant environmental harm.
Performance Study of Sustainable Concrete Containing Recycled Aggregates from Non-Selected Construction and Demolition Waste
Researchers investigated the mechanical performance of sustainable concrete made with recycled aggregates from non-selected construction and demolition waste in Iran. The study evaluates how incorporating waste materials into concrete production can reduce construction debris in landfills while maintaining acceptable structural performance.
Investigating the Viability of Recycling Rice Husk Ash and Plastic Bag Waste to Enhance Durability of Lightweight Concrete
Researchers investigated using recycled rice husk ash and plastic bag waste to enhance durability of lightweight concrete, finding that these waste materials improved certain mechanical and durability properties while reducing environmental impact of construction.
Database Study on the Sustainability Assessment of Plastic Waste Utilization in Concrete: Towards the Development of Sustainable Waste Management Route
Researchers compiled a database of 635 data points from the literature on concrete incorporating polypropylene and polyethylene terephthalate waste plastics, finding that plastic substitution — especially when combined with pozzolanic materials — can substantially reduce global warming potential and other environmental impact indices.
A Review of Hazardous Compounds Present in Construction Waste Materials
This review catalogued hazardous chemical compounds found in construction waste materials including concrete, plastic, wood, ceramics, and asbestos, identifying heavy metals such as arsenic, lead, chromium, and nickel as major risks, and recommending improved waste management practices in the construction industry to protect human health and the environment.
Effects of waste slag soil reconstruction on the growth of Elymus nutans and microbial diversity in the western Sichuan Plateau
Researchers examined how mixing railway engineering waste slag with subgrade, guest, and reclaimed soils in 15 different volume ratios affected the growth of Elymus nutans grass and soil microbial diversity on the western Sichuan Plateau, finding that a 25% waste slag and 75% subgrade soil combination performed best across two growing seasons.
Waste Management for Green Concrete Solutions: A Concise Critical Review
This review examines the use of industrial waste materials — including recycled plastics and rubber — as partial replacements for conventional concrete components, evaluating their effects on strength, durability, and environmental footprint with a focus on sustainable construction applications.
Characterization of Technosols for Urban Agriculture
Nine urban soils developed on construction debris in Alicante, Spain were characterized over two years, revealing variable mineralogy, elemental composition, and metal availability relevant to planning safe urban agriculture in post-industrial areas.
Enhancing High-Performance Concrete with Waste Rubber Tyre Aggregates: A Sustainable Approach
Researchers investigated the mechanical properties and sustainability performance of high-performance concrete incorporating waste rubber tyre aggregates, finding that rubber additions improve toughness and reduce environmental impact while meeting structural performance requirements.
Recycled Mixed Plastic Fine Aggregate in Cement Concrete
Cement concrete mixtures incorporating mixed post-consumer recycled plastic as fine aggregate were characterized, finding that an optimized blend of polymer types produced workable concrete with mechanical properties suitable for construction applications.
A Comprehensive Review of Stone Dust in Concrete: Mechanical Behavior, Durability, and Environmental Performance
This review examined the use of stone dust as a replacement for natural sand in concrete, finding it can improve mechanical strength and durability while reducing environmental impacts from sand mining and stone quarry waste.
Strength Characteristics of Alkali-Activated Slag Mortars with the Addition of PET Flakes
Researchers investigated incorporating PET plastic flakes into alkali-activated slag mortars as an alternative to Portland cement, finding that PET additions affected mechanical strength in ways that depend on flake content. This approach offers a potential use for waste PET plastic while reducing cement production emissions.
Geoecological analysis of impacts of the use of plastic waste in road construction on the geological environment
This study analyzes the environmental risks of incorporating recycled polymer waste into road construction materials, finding that microplastic particles can migrate into surrounding soil and groundwater and proposing criteria to assess the safety of such practices based on chemical composition and hazard class.
Assessment of Concrete Hollow Blocks Incorporating Polyethylene Terephthalate (PRT) and Copper Slag as a Commercial Concrete Alternative
Researchers assessed the structural performance of concrete hollow blocks incorporating polyethylene terephthalate (PET) waste and copper slag as partial replacements for conventional materials, evaluating durability and sustainability metrics. The study demonstrates that PET-inclusive concrete composites can meet performance standards while diverting plastic waste from landfills.
Feasibility Study of the Use of Concrete Blocks Produced From Plastic Marine Garbage for Use in Civil Construction
Researchers investigated the feasibility of producing concrete blocks incorporating plastic waste collected from marine and coastal environments, testing blocks with varying proportions of recycled plastic as a partial aggregate replacement in civil construction applications. The study assessed the mechanical and physical properties of the resulting composite blocks, evaluating whether marine plastic garbage could be valorized as a construction material while reducing environmental plastic loads.
An Assessment of the Suitability of Contrasting Biosolids for Raising Indigenous Plants in Nurseries
Researchers assessed three biosolids and one pond sludge as amendments for growing six indigenous plant species in nurseries for ecosystem restoration, finding significant positive correlations between plant growth and biosolid addition up to species-dependent optima (10% fresh, 30% aged), with increased foliar N, P, K, S, and Zn but no phytotoxic trace element accumulation.
Carbon sequestration and environmental impacts in ternary blended cements using dyeing sludge and papermaking sludge
Not relevant to microplastics — this study investigates blending papermaking sludge and dyeing sludge ash into cement to reduce heavy metal leaching, improve mechanical properties, and enhance CO2 sequestration compared to conventional Portland cement.
Unlocking the Potential of Biomass Fly Ash: Exploring Its Application in Geopolymeric Materials and a Comparative Case Study of BFA-Based Geopolymeric Concrete against Conventional Concrete
This review examines biomass fly ash (BFA) as a raw material for geopolymer concrete production, comparing its carbon footprint and cost against conventional Portland cement concrete. Using BFA as a supplementary cementitious material offers a promising pathway for reducing cement's high CO2 emissions while utilizing an industrial by-product.
Innovative Sustainable Concrete: Fresh and Hardened Properties Incorporating Plastic Waste
This study investigated the effects of incorporating plastic waste into concrete on mechanical and durability properties, addressing the hydrophobic nature and poor interfacial adhesion of plastic as a challenge within circular economy frameworks for construction material sustainability.
Stabilization of Shield Muck Treated with Calcium Carbide Slag–Fly Ash
Researchers used calcium carbide slag and fly ash as curing agents to stabilize shield muck (excavation waste), evaluating compressive strength, water stability, and durability and finding this approach to be an effective method for waste reuse in construction.