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Engineering Behavior and Characterization of Biomass Ashes using Geotechnical Measurement Techniques

2014· dissertation· en· W4283033265 on OpenAlexaboutno aff
Francisco Grau Sacoto

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldEngineering
TopicGeotechnical Engineering and Soil Stabilization
Canadian institutionsnot available
FundersLouisiana State UniversityU.S. Department of Energy
KeywordsBiomass (ecology)BagasseEnvironmental scienceSpecific gravityWaste managementSieve analysisRenewable energyWood ashCrop residuePulp and paper industryEngineeringMaterials scienceGeotechnical engineeringAgronomyComposite material

Abstract

fetched live from OpenAlex

Biomass, the organic material derived from plants or animals in a biological process, has rapidly become a topic of worldwide interest. The need to find new types of renewable energy sources has led to the use of natural materials as an economic, sustainable and environmental alternative. Biomass can be used to produce biofuel after a conversion process. The combustion of biomass matter –which is mainly produced in industrial plants- becomes biomass ash, which contains macronutrients and micronutrients. Currently, the recycling potential is wasted and most of the biomass ash is dumped without control or just disposed in landfills. The main objective of this research is to provide an environmental solution recycling the biomass ash and reducing the waste. Thus, biomass ashes from two kinds of materials were selected and tested in the laboratory. Wood ash is used in this study since wood is currently one of the largest biomass energy sources that has been applied in engineering in construction of roads, landfills and concrete mixtures. Also, sugarcane bagasse ash was used in this study because sugarcane is the most abundant crop in Louisiana. Bagasse is the residue matter, mostly consisting of the dry fibrous mass remaining after the juice is extracted. Therefore, wood and sugarcane bagasse ashes’ physical and chemical properties were investigated for their characterization such as particle size distribution –sieve and hydrometer, specific gravity, pH, microscope examination using SEM and elemental analysis using EDS. Also, geotechnical tests were conducted such as hydraulic conductivity, one-dimensional consolidation, shear wave velocity using bender elements and thermal conductivity. Samples containing 100% of Ottawa 20-30 sand, wood ash and sugarcane bagasse ash were tested first. Later, mixtures of sand with 2~10% ash were tested in order to compare and evaluate the behavior of those biomass ashes when mixing them with a non-cohesive soil.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.407
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.014
GPT teacher head0.217
Teacher spread0.203 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2014
Admission routes1
Has abstractyes

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