Results 51 to 60 of about 1,447,900 (335)

Calcium carbonate-calcium phosphate mixed cement compositions for bone reconstruction [PDF]

open access: yes, 2006
The feasibility of making calcium carbonate-calcium phosphate (CaCO3-CaP) mixed cements, comprising at least 40 % (w/w) CaCO3 in the dry powder ingredients, has been demonstrated.
Arnaud   +55 more
core   +2 more sources

Surmounting difficulties to provide home based neonatal care – reflections of community health workers

open access: yesBMC Women's Health, 2018
Background In India, community health workers’ (CHW) effectiveness in providing home-based neonatal care (HBNC) has been well documented. The nature of challenges faced and strategies adopted while providing HBNC services need to be studied in-depth ...
Abhijit Shrinivas Prabhughate   +6 more
doaj   +1 more source

Study on the Factors Influencing on Wetting Performance of Blasting Dust in a Limestone Mine

open access: yesGeofluids, 2022
In order to find out the factors influencing on wetting performance of blasting dust in open-pit limestone mines, the blasting dusts in a limestone mine in Tongling, Anhui Province, were studied. The samples of hydrophobic dust (MD) and hydrophilic dust (
Jinrui Nie   +3 more
doaj   +1 more source

Setting control of completely recyclable concrete with slag and aluminate cements [PDF]

open access: yes, 2016
A completely recyclable concrete (CRC) is designed to have a chemical composition equivalent to the one of general raw materials for cement production. By doing so, this CRC can be used at the end of its service life in cement manufacturing without the ...
De Belie, Nele   +3 more
core   +2 more sources

A Comprehensive Review of Additive Manufacturing for Space Applications: Materials, Advances, Challenges, and Future Directions

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing (AM) transforms space hardware by enabling lightweight, high‐performance, and on‐demand production. This review outlines AM processes—powder bed fusion (PBF), directed energy deposition (DED), binder jetting (BJ), sheet lamination (SL), and material extrusion (ME)—applied to propulsion, satellite structures, and thermal devices ...
Stelios K. Georgantzinos   +8 more
wiley   +1 more source

Structural built-up of cement-based materials used for 3D-printing extrusion techniques

open access: yes, 2016
Additive manufacturing and digital fabrication bring new horizons to concrete and cement-based material construction. 3D printing inspired construction techniques that have recently been developed at laboratory scale for cement-based materials.
A. Perrot, D. Rangeard, A. Pierre
semanticscholar   +1 more source

CO2 Capture, Use, and Storage in the Cement Industry: State of the Art and Expectations

open access: yesEnergies, 2020
The implementation of carbon capture, use, and storage in the cement industry is a necessity, not an option, if the climate targets are to be met. Although no capture technology has reached commercial scale demonstration in the cement sector yet, much ...
M. Plaza, S. Martínez, F. Rubiera
semanticscholar   +1 more source

Multi-scale simulation of capillary pores and gel pores in Portland cement paste [PDF]

open access: yes, 2015
The microstructures of Portland cement paste (water to cement ratio is 0.4, curing time is from 1 day to 28 days) are simulated based on the numerical cement hydration model, HUMOSTRUC3D (van Breugel, 1991; Koenders, 1997; Ye, 2003).
Gao, Peng   +3 more
core  

Requirements and Evaluation of Commercial Digital Light Processing 3D Printers for Upscaled Production of Microstructured Tissue Culture Devices

open access: yesAdvanced Engineering Materials, EarlyView.
Commercial light‐based 3D printers increasingly find use for industry‐scale production of microstructured tissue culture devices. How can commercial printer performance be assessed for a given application? This work introduces simplified quantitative metrics based on microstructural fidelity analysis, addressing key manufacturing challenges in scaling ...
Zoltán András Guller   +4 more
wiley   +1 more source

Optimum pretreatment of corn stover ash as an alternative supplementary cementitious material

open access: yesCement, 2023
As sustainable construction practices become more popular, researchers are looking into using readily available and inexpensive agricultural waste materials as a supplementary cementitious material.
Mohammad Teymouri, Mahmoud Shakouri
doaj   +1 more source

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