Market Analysis of CO 2 Sequestration in Concrete Building Products
Bibliographic record
Abstract
Four typical cement based building products are studied for their abilities to sequester carbon dioxide through early age carbonation curing. They are concrete blocks, paving stones, expanded polystyrene bead (EPB) cement boards and cellulose fiber boards. Carbonation curing takes place in a chamber under a pressure of 500 kPa, at ambient temperature, for duration of 2 hours. Pure carbon dioxide gas is used to simulate the recovered CO2 from point sources. Carbon uptake, immediate strength gain and long term strength development are measured. It is found that the uptake is dependent on the type of products, water cement ratio and porosity. In the United States and Canada, the annual cement consumed in their productions is about 14 million tonnes. If all of these products were carbonation cured then the net annual sequestration of CO2 would reach 1.8 million tonnes of CO2. The proposed process offers a feasible method of safe and permanent sequestration of carbon dioxide in manufactured concrete products.
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 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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.024 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".