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Dataset results
360 results for “Cements”
Raw data for"Early hydration of Belite-Ye'elimite-Ferrite cements: role of admixtures"
<p>Raw data for "Early hydration of Belite-Ye’elimite-Ferrite cements: role of admixtures". <a title="Persistent link using digital object identifier" href="https://doi.org/10.1016/j.conbuildmat.2023.130765" target="_blank" rel="noreferrer noopener"><span>https://doi.org/10.1016/j.conbuildmat.2023.130765</span></a></p> <p>Diffraction data is attached here.</p> <pre> </pre>
Heavy metal removal from coal fly ash for low carbon footprint cement
<p>Source data for the publication "Heavy metal removal from coal fly ash for low carbon footprint cement"</p>
Data package for Poromechanical analysis of oil well cements in CO2-rich environments
<p>Data package for the results obtained in Poromechanical analysis of oil well cements in CO2-rich environments.</p> <p>Juan Cruz Barría, Mohammadreza Bagheri, Diego Manzanal, Seyed M. Shariatipour, Jean-Michel Pereira,<br> Poromechanical analysis of oil well cements in CO2-rich environments,<br> International Journal of Greenhouse Gas Control, Volume 119, 2022, 103734, ISSN 1750-5836, https://doi.org/10.1016/j.ijggc.2022.103734.</p>
Dataset for publication Sikora P., El-Khayatt A.M., Saudi H.A., Liard M., Lootens D., Chung S.-Y., Woliński P., Abd Elrahman M. Rheological, mechanical, microstructural and radiation shielding properties of cement pastes containing magnetite (Fe3O4) nanoparticles. International Journal of Concrete Structures and Materials (2023), 17, 7
<p>Open dataset for publication Sikora P., El-Khayatt A.M., Saudi H.A., Liard M., Lootens D., Chung S.-Y., Woliński P., Abd Elrahman M. Rheological, mechanical, microstructural and radiation shielding properties of cement pastes containing magnetite (Fe3O4) nanoparticles. International Journal of Concrete Structures and Materials (2023), 17, 7. https://doi.org/10.1186/s40069-022-00568-y</p> <p>File 1 - X-ray diffractogram and particle size distribution (laser granulometry) data - *.opju (Origin)<br> File 2 - Rheological test results - *.opju (Origin)<br> File 5 - Mechanical peformance (early strength - ultrasounds and compressive strength) and density test results - *.opju (Origin)<br> File 4 - Mercury intrusion porosimetry test data - *.opju (Origin)</p>
China Cement Industry Dataset (CCID)
<p>1. "China cement plants.xlsx" displays the company, clinker production lines, province, address, kiln size, clinker production capacity, and year of operation of cement plants in China. </p> <p>2. "Energy statistics for China cement plants.xlsx" displays the energy statistics of thermal and electricity consumption of part of cement plants, reported by official departments. </p> <p> </p>
Quasi-Static and Fatigue Testing Dataset for soft bone cements according to ASTM F2118
<p>This Dataset features quasi-static and fatigue data of PMMA cements. All the tests were run on an MTS 858 Mini Bionix (MTS Systems Corporation, United States). In summary, this dataset contains:</p> <ul> <li>Videos captured for marker tracking used in a virtual extensometer (.mp4)</li> <li>Quasi-static testing data for the PMMA cements (.txt)</li> <li>Fatigue data for three different stress levels (5MPa, 7MPa, 9MPa) (.txt)</li> <li>An Excel sheet with corrected tensile properties (.xlsx)</li> </ul> <p>General Abbreviations:</p> <ul> <li>VS is the V-Steady Cement</li> <li>VSLA is the V-Steady Cement with 12%vol linoleic acid</li> </ul> <p>Abbreviations for Fatigue Data:</p> <ul> <li>B is the batch number</li> <li>S is the sample number</li> </ul>
Bio-cementation and crackling noise from calcareous sand and consolidated aggregates
<p>The supporting data for "Bio-cementation and crackling noise from calcareous sand and consolidated aggregates".</p>
Dataset for NMR quadrature echo and T1 saturation recovery pulse sequences underlying the publication 'On the quantification of solid phases in hydrated cement paste by 1H nuclear magnetic resonance relaxometry'
<p>This record comprises the datasets of combined 1H NMR quadrature echo and T1 saturation recovery pulse sequences underlying the publication “On the quantification of solid phases in hydrated cement paste by 1H nuclear magnetic resonance relaxometry” by Robert Schulte Holthausen & Peter J. McDonald, Cement and Concrete Research, https://doi.org/10.1016/j.cemconres.2020.106095.</p> <p><br> In this work different solid phases, important to cement paste hydration, are investigated with low-field bench top 1H nuclear magnetic resonance with a view to developing an alternate characterisation methodology that requires minimal invasive or destructive sample preparation.</p> <p><br> A combination of the well-established quadrature echo pulse sequence with variable pulse gap together with a T1 saturation recovery quadrature echo pulse sequence is used.</p>
Dataset for "Influence of curing temperature on belite cement hydration: a comparative study with Portland cement" paper
<p>Dataset for paper (doi: <a title="Persistent link using digital object identifier" href="https://doi.org/10.1016/j.cemconres.2021.106499" target="_blank" rel="noreferrer noopener"><span>https://doi.org/10.1016/j.cemconres.2021.106499</span></a>) with the abstract "Belite cements (BCs) could be a more sustainable binder than Portland cements (PCs) but adequate knowledge of the hydration features has still to be built. In particular, the mild curing hydration temperature effects have been extensively studied for PCs but not for BCs. This research was triggered by a previous work reporting improved mechanical strengths of BCs at higher curing temperatures. Here, we report the hydration characteristics of a BC at 20, 40 and 60ºC and compared to those of a typical PC. We have corroborated previous findings and used a multi-technique approach including Rietveld phase analysis, thermal analysis, calorimetry, silicon MAS-NMR, mercury intrusion porosimetry and chiefly synchrotron X-ray microtomography, to thoroughly understand the different behavior. In a nutshell, the improved mechanical performances at mild curing temperatures for BCs are due to a much larger belite degree of reaction without a significant porosity coarsening."</p>
Recycling Carbon Dioxide In The Cement Industry To Produce Added-Value Additives
<p>Prof. Simelys Hernández of the Italian Institute of Technology presented the RECODE project (<a href="http://www.recodeh2020.eu">recodeh2020.eu</a>) at the EU Green Week Webinar 'Towards Zero Pollution in the Production of Green Fuels and Chemicals' on 4th June 2021.</p>
Data from: Experimental study of shear and hydraulic bonding strength between casing and cement under complex temperature and pressure conditions
The cement sheath plays a vital role in preventing gas channelling. It is important to understand the interfacial bonding between the casing and cement sheath when the downhole temperature and pressure change. This paper demonstrates the results of an experimental study to investigate the effect of high-temperature and high-pressure (HTHP) and their variations on the cement sheath interfacial bonding strength (CSIBS). An experimental device was developed that is used to test the shear and hydraulic bonding strength with the method of uniaxial compression and gas channelling. The results show that both temperature and pressure have a significant influence on the CSIBS. As the curing temperature increases with a constant curing time or as the curing time increases with a constant curing temperature, the CSIBS first increases and then converges to a stable value. The casing roughness has a crucial effect on the shear bonding strength but little effect on the hydraulic bonding strength. Though the CSIBS decreases obviously with the decrease in temperature, it undergoes little change when the temperature first increases and then recovers to the initial value. When the internal casing pressure decreases to a certain value or first increases to a certain value followed by recovery to the initial state, the hydraulic bonding strength tends to be 0 MPa, which means that the interface undergoes debonding between the casing and cement.
Graffiti on Cement Barrier, Venice Beach, CA
Taken while up in Venice Beach. There's a bunch of these cement barriers with graffiti on them. I used the LiDar mode in Trnio Plus. Source: Objaverse 1.0 / Sketchfab
Data and code to accompany the manuscript Phillipsite and Al-tobermorite mineral cements produced through low-temperature water-rock reactions in Roman marine concrete, American Mineralogist
<p>EPMA data and code used to produce figures in the publication.</p>
Dataset for "Mix and measure - combining in situ X-ray powder diffraction and microtomography for accurate hydrating cement studies" paper
<p>Dataset for paper (doi: <a title="Persistent link using digital object identifier" href="https://doi.org/10.1016/j.cemconres.2023.107370" target="_blank" rel="noreferrer noopener">https://doi.org/10.1016/j.cemconres.2023.107370</a>) with the abstract: "It is reported an innovative methodology based on in situ MoKa1 laboratory X-ray powder diffraction (LXRPD) and microtomography (μCT) avoiding any sample conditioning. The pastes are injected in 2.0 mm capillaries and the extremes are just sealed. The measurements take place in the same region of the hydrating paste. Thick capillaries are key to avoiding self-desiccation, which dictates the need of high-energy X-ray radiation for the diffraction study. This approach has been tested with a PC 42.5 R paste having w/c=0.50. μCT data were collected at 12 hours and 1, 3, 7 and 79 days. LXRPD data were acquired at 1, 3, 7 and 77 days. In this proof-of-principle research, the same paste was also cured ex situ. Portlandite contents obtained by thermal analysis, ex situ powder diffraction, in situ mass balance calculation and in situ powder diffraction were 13.8, 13.1, 13.1 and 12.5 wt%, respectively. From the μCT study, the grey value histogram evolution with time showed a crossing point which allowed us to distinguish (appearing) hydrated products from (dissolving) unhydrated cement particles. Segmentations were carried out by global thresholding and the random forest approach (one type of supervised Machine Learning). The comparison of the segmented results for the unhydrated cement fraction and the Rietveld quantitative phase analysis outputs gave an agreement of 2%. The potential of this methodology to deal with more complex binders is also presented."</p>
CAPITAN - Carbon cAPture vIa cemenT cArbonationN
<p>LCA framework to assess the supply chain of CO2 minerlization in recycled concrete aggregate.</p> <p>Deliverable of the WP2 of the DemoUpCarma research project (http://www.demoupcarma.ethz.ch/en/home/).</p> <p>DemoUpCARMA is funded and supported by the Swiss Federal Office of Energy (SFOE) and the Federal Office for the Environment (FOEN).</p>
[Raw data collection] - Granular skeleton optimisation and influence of the cement paste content in bio-based oyster shell mortar with 100% aggregate replacement
<h1>Raw data collection</h1> <h2>Associated paper information</h2> <p>- Year: 2024 <br>- Journal: Sustainability <br>- DOI/link: https://doi.org/10.3390/su16062297 <br>- Title: Granular skeleton optimisation and influence of the cement paste content in bio-based oyster shell mortar with 100% aggregate replacement <br>- Authors: Ana Cláudia Pinto Dabés Guimarães (1,2), Olivier Nouailletas (3), Céline Perlot (2,3,4) and David Grégoire (1,3,4,*) <br>- Affiliation: <br> (1) Universite de Pau et des Pays de l’Adour, E2S UPPA, CNRS, LFCR, Anglet, France, <br> (2) Universite de Pau et des Pays de l’Adour, E2S UPPA, SIAME, Anglet, France, <br> (3) Universite de Pau et des Pays de l’Adour, E2S UPPA, ISA BTP, Anglet, France, <br> (4) Institut Universitaire de France, Paris, France, <br> * Correspondence: david.gregoire@univ-pau.fr</p>
Using CSA Cement for Novel Waterway Repair Materials
<p>Many maritime structures (e.g., locks, dams, ports) in the US are either reaching or are past their design lives, and there are limited funds for necessary maintenance activities which can often lead to closures. These structures are not easy to detour and often require dewatering before repairs can be made. Closures can cause delays and business-related losses which can have a large economic effect. Thus, it is advantageous to reduce the repair time for maritime structures. BCSA (belitic calcium sulfoaluminate) cement is a promising repair material due to its properties. BCSA cement is a fast-setting hydraulic cement capable of reaching compressive strengths greater than 4000 psi (27.6 MPa) in less than 2 hours. BCSA also has low shrinkage and good long-term strengths. This research consisted of developing an optimal rapid-setting underwater repair mortar mixture design using BCSA cement. Properties such as compressive strength and workability were tested to select the best mix design. Additionally, soil-cements made with BCSA cement were compared to portland cement-based soil-cements. These soil cements have applications for the rapid repair of levees and earthen dams, but also for rapid soil stabilization. The results obtained proved that BCSA cement is a promising material for rapid underwater repairs and repairs of soil-based waterway structures.</p>
Assessment of Degree of Conversion and Knoop Microhardness of Different Resin Cementing Agents - Results
<p>Data from the results of the study entitled "Assessment of Degree of Conversion and Knoop Microhardness of Different Resin Cementing Agents".</p>
Extensive Early Marine Seafloor Cementation in a Modern Epeiric Sea Induced by Seawater Properties and a Shallow Redox Boundary below the Seafloor
<p>supplement information for Extensive Early Marine Seafloor Cementation in a Modern Epeiric Sea Induced by Seawater Properties and a Shallow Redox Boundary below the Seafloor</p>
Rapid Repair of Cracks on the Embankment Slopes Using Bio-Cement
<p>This research explored the feasibility of using Microbially Induced Carbonate Precipitation (MICP) to improve fine-grained soil mechanical properties, seal the soil cracks, and assess the improvement of MICP on slope stability. The conducted research tasks include (1) direct shear tests to investigate the mechanical behavior and biogeochemical reactions of low-plasticity silt treated by MICP, (2) cyclic wetting-drying tests to assess the feasibility of using MICP to seal and waterproof the soil cracks, and (3) SLOPE/W modeling of a slope treated by MICP. Direct shear tests were used to evaluate the shear responses of the low-plasticity silt under different overburden pressures (12, 25, and 35 kPa) and different bio-cement treatments. A series of cyclic wetting-drying tests were used to assess the effectiveness of MICP treatment on healing soil cracks. Crack lengths, area, width, and area percentage were measured and compared before and after the MICP treatment. SLOPE/W analysis was performed to assess the factor of safety of a slope under MICP treatment. The direct shear tests results show that the peak shear strengths increased by an average of 30% from the untreated to the MICP-treated soil samples. The wetting-drying cycle tests results show that MICP treatment can heal desiccation cracks, reducing crack length, crack width, and crack area. The results of the SLOPE/W modeling show that the MICP treatment had a positive effect on the improvement of slope stability, but more field tests are needed for optimizing the treatment solutions and procedures and assessing the long-term effect and ecological impacts.</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.