Mechanical and vegetative performance of ecological concrete with nutrient aggregates
Source abstract
Abstract
Enhancing its performance and maximizing the utilization of solid waste are pressing matters that require attention to guarantee the sustainable development of ecological concrete. This study focuses on the development of a nutrient-rich aggregate ecological concrete that demonstrates favorable plant growth performance through the utilization of recycled engineering muck and agricultural waste straw biochar. First, a unsintered nutrient aggregate is formulated through the combination of engineering muck, agricultural waste straw biochar, compound fertilizer powder, and super absorbent polymer with magnesium phosphate cement (MPC) and a hydrophilic polyurethane solution (HPS). Subsequently, by employing the prepared unsintered nutrient aggregates to partially substitute natural aggregates, a novel ecological concrete containing nutrient aggregates is generated. The study examines the impact of the composition of nutrient aggregates and porosity on the mechanical properties, water retention capacity, fertilization performance, and ecological attributes of concrete. The findings indicated that a combination of 17.06% MPC and 5.38% HPS proved to be the most effective curing method for nutrient aggregates at a liquid-solid ratio of 0.34. The water retention, fertility, and ecological performance of ecological concrete with nutrient aggregates improve with higher nutrient aggregate content, albeit at the expense of reduced mechanical performance. Under equivalent nutrient aggregate content, low porosity ecological concrete demonstrates higher fertility performance compared to high porosity ecological concrete, whereas the water retention performance shows the opposite trend. Furthermore, the patterns observed in phosphorus leaching concentration and conductivity suggest that the ecological concrete with nutrient aggregates exhibits a self-release characteristic of nutrients. The study can offer technical assistance for the efficient utilization of solid waste, thus advancing the sustainable growth of the ecological concrete industry.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Magnesium Oxide Properties and Applications · Innovations in Concrete and Construction Materials · Innovative concrete reinforcement materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (45)
Show source-provided references
1. Demonstrating circular life cycle sustainability assessment - a case study of recycled carbon concrete10.1016/j.jclepro.2023.139853 ↗
2. Using chinese coal gangue as an ecological aggregate and its modification: a review10.3390/ma15134495 ↗
3. Production, properties and life cycle assessment of artificial lightweight aggregates produced with corn straw ash (CSA) and concrete slurry waste (CSW)10.1016/j.conbuildmat.2023.134274 ↗
4. Properties of recycled concrete aggregate and their influence in new concrete production10.1016/j.resconrec.2018.02.005 ↗
5. Shape effect on compressive mechanical properties of compound concrete containing demolished concrete lumps10.1016/j.conbuildmat.2018.07.086 ↗
6. A comprehensive data driven study of mechanical properties of concrete with waste-based aggregates: plastic, rubber, slag, glass and concrete
7. Preparation of a low-carbon plant-compatible ecological concrete with fertilizer self-release characteristics based on multi-solid waste co-recycling and its environmental impact
8. Study on green restoration of exposed mountain: Effect of isobutylidene diurea on slow-release of total nitrogen and physiological characteristics of euonymus fortune in planted eco-concrete10.1016/j.conbuildmat.2022.129460 ↗
9. Strength, durability and microstructural investigations on pervious concrete made with fly ash and silica fume as supplementary cementitious materials
10. A comparative study of mechanical and environmental properties of concrete using jujube nucleus as a coarse aggregate
11. Mechanical behaviour of adsorbent pervious concrete using iron slag and zeolite as coarse aggregates10.1016/j.conbuildmat.2023.131720 ↗
12. Concrete made with partially substitution corn cob ash: a review
13. Bituminous pavement overlay of a porous asphalt mixture with ladle furnace slag: a pilot project10.1080/14680629.2022.2154251 ↗
14. Effect of recycled crushed glass and recycled coarse aggregate on the properties of self-compacting concrete
15. Production of lightweight aggregate ceramsite from red mud and municipal solid waste incineration bottom ash: Mechanism and optimization10.1016/j.conbuildmat.2021.122993 ↗
16. Preparation of glass shell fly ash-clay based lightweight aggregate with low water absorption by using sodium carbonate solution as binder10.1016/j.matchemphys.2020.123606 ↗
17. Manufacturing non-sintered ceramsite from incinerated municipal solid waste ash (IMSWA): production and performance10.1016/j.psep.2022.05.007 ↗
18. Mechanical properties of excavated soil waste-based cementitious products at normal condition or after water soaked: a literature review of experimental results
19. Characterizing the generation and environmental impacts of subway-related excavated soil and rock in China10.1016/j.jclepro.2019.119242 ↗
20. A low-carbon approach to recycling engineering muck to produce non-sintering lightweight aggregates: physical properties, microstructure, reaction mechanism, and life cycle assessment10.1016/j.jclepro.2022.135650 ↗
21. Environmental benefits of construction and demolition debris recycling: evidence from an indian case study using life cycle assessment10.1016/j.jclepro.2020.120258 ↗
22. Mechanism of the december 2015 catastrophic landslide at the shenzhen landfill and controlling geotechnical risks of urbanization10.1016/J.ENG.2016.02.005 ↗
23. Biochar as environmental armour and its diverse role towards protecting soil, water and air10.1016/j.scitotenv.2021.150444 ↗
24. Synergistic effect of zeolite and biochar on geotechnical and fertility properties of vegetation concrete prepared by sandy soil10.1016/j.conbuildmat.2023.132029 ↗
25. Hydrogel-biochar composite for agricultural applications and controlled release fertilizer: a step towards pollution free environment10.1016/j.energy.2021.122977 ↗
26. Developing biochar and organic nutrient packages/technology as soil policy for enhancing yield and nutrient uptake in maize-black gram cropping system to maintain soil health10.1007/s13399-022-02300-y ↗
27. Developing biochar-based slow-release NPK fertilizer for controlled nutrient release and its impact on soil health and yield
28. Potential role of biochar on capturing soil nutrients, carbon sequestration and managing environmental challenges: a review10.3390/su15032527 ↗
29. Development and evaluation of biochar-based secondary and micronutrient enriched slow release nano-fertilizer for reduced nutrient losses
30. Ceramsite vegetated concrete with water and fertilizer conservation and light weight: Effect of w/c and fertilizer on basic physical performances of concrete and physiological characteristics of festuca arundinacea10.1016/j.conbuildmat.2019.117785 ↗
31. Organic nutrient management packages as soil policy for upgrading cropping system to restore soil productivity in Sikkim
32. Role of micronutrient in rice cultivation and management strategy in organic agriculture—a reappraisal
33. Effects of carbamide on sulfoaluminate cement paste for growing plants10.1016/j.conbuildmat.2016.03.003 ↗
34. Development of vegetation concrete technology for slope protection and greening10.1016/j.conbuildmat.2018.05.207 ↗
35. Evaluation of the preparation and fertilizer release performance of planting concrete made with recycled-concrete aggregates from demolition10.1016/j.jclepro.2018.07.264 ↗
36. Construction of water-soil-plant system for rainfall vertical connection in the concept of sponge city: a review10.1016/j.jhydrol.2021.127327 ↗
37. Novel water- and fertilizer-management strategy: nutrient-water carrier10.1016/j.jclepro.2021.125961 ↗
38. Mix design for recycled aggregate pervious concrete based on response surface methodology10.1016/j.conbuildmat.2020.119776 ↗
39. Effects of lightweight fly ash aggregate properties on the behavior of lightweight concretes10.1016/j.jhazmat.2010.03.098 ↗
40. Analyzing the crushing of granular materials by sound analysis technique10.1520/JTE100032 ↗
41. Determining the water absorption of recycled aggregates utilizing hydrostatic weighing approach10.1016/j.conbuildmat.2011.08.018 ↗
42. Rapid and low-cost method for evaluation of nutrient release from controlled-release fertilizers using electrical conductivity10.1007/s10924-018-1309-1 ↗
43. Characterizing pore volume, sizes, and connectivity in pervious concretes for permeability prediction10.1016/j.matchar.2010.05.004 ↗
44. Effect of ceramsite structure on microstructure of interfacial zone and durability of combined aggregate concrete10.1007/s11595-009-1145-1 ↗
45. Water absorption behaviour of concrete: novel experimental findings and model characterization