Mechanical Resistance of Cracked Dam Mass Concrete Repaired by Grouting: An Experimental Study
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Bibliographic record
Abstract
To evaluate the modulus of rupture and the shear strength of mass concrete repaired by grout injection, six 400 x 400 x 1250 mm concrete specimens with a maximum aggregate size of 100 mm were tested following ASTM C78 and a loading configuration promoting large shear stresses along a vertical failure plane.ASTM C78 was done on the all virgin specimens and on repaired specimens (two repaired once and two repaired multiple times) using two different micro fine injection grout mixes with water cement ratio (w/c) of 1.0 and 0.5.The shear test was done on two single repaired and two multiple repaired specimens; with both grout mixes.Average indirect tensile strength of 2.8 MPa was obtained for virgin specimens.This value was reduced to 1 MPa and 0.5 MPa for specimens repaired using grout with a w/c ratio respectively equal to 0.5 and 1.0 regardless of the number of repairs.The shear strength of the specimens is affected by both the injection grouts w/c ratio and the repaired crack width.
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Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.003 | 0.001 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it