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Record W2077491851 · doi:10.1520/jte20120192

Loading Rate Concerns in ASTM C1609

2013· article· en· W2077491851 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueJournal of Testing and Evaluation · 2013
Typearticle
Languageen
FieldEngineering
TopicMechanical Failure Analysis and Simulation
Canadian institutionsUniversity of British Columbia
Fundersnot available
KeywordsMaterials scienceComposite materialForensic engineeringEngineering

Abstract

fetched live from OpenAlex

Abstract ASTM C1609 remains one of the most prescribed tests for characterizing the performance of fiber reinforced concrete (FRC). Although numerous deficiencies in this test have been addressed over the years, concerns persist regarding the loading rate prescribed in the current version of the test. A test program was carried out to investigate the influence of the loading rate in ASTM C1609-2010. Normal-strength FRCs with 1.0 kg/m3 (0.11 % by volume) and 3.0 kg/m3 (0.33 % by volume) polypropylene fiber were tested. The results indicate that although the prescribed loading rate is appropriate for the 3.0 kg/m3 fiber dosage rate, it is too high for FRC with a 1.0 kg/m3 fiber dosage rate. In order to obtain a stable load-deflection curve in FRC with a 1.0 kg/m3 fiber dosage rate, a reduced loading rate was required. In the context of these findings, this paper argues that either the loading rate in ASTM C1609 should be reduced or a minimum fiber dosage rate for which the test is valid should be specified.

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.

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)0.001
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.335
Threshold uncertainty score0.143

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
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 integrity0.0000.000
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 head0.066
GPT teacher head0.301
Teacher spread0.235 · 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