Results 81 to 90 of about 89,639 (290)

Rheological properties of mortars prepared with different sands [PDF]

, 2014
YesThe principal aim of this paper is to investigate the effect of sand grading, surface morphology, and content on the rheological properties—that is, yield stress and plastic viscosity—of fresh mortar. Mortars were produced from four different types of
Abdelgader, Banfill, Banfill, Banfill, Cortes, Donza, Erdogan, Ferraris, Hu, Kennedy, Wallevik, Westerholm   +11 more
core   +1 more source

AC impedance spectroscopy characteristics of chloride-exposed cement pastes [PDF]

, 2020
In this paper, the characteristics of AC impedance spectroscopy of cement paste immersed in chloride solution were measured and analyzed with a proposed equivalent circuit model.
De Schutter, Geert, Hu, Xiang, Shi, Caijun, Yuan, Qian   +3 more
core   +2 more sources

Hydration Behavior of Tricalcium Silicate in Seawater Relevant Salt Systems: A Hybrid Study with the Aid of Machine Learning

Advanced Intelligent Discovery, EarlyView.
The hydration behavior of C3S in seawater‐relevant solutions is studied based on experiments, boundary nucleation and growth (BNG) modeling, and machine learning. The main ions included in seawater modify hydration mechanisms, with MgCl2 showing the strongest acceleration effect at the same concentration.
Yanjie Sun, Chen Zhang, Ting Zhang, Mengze Hong, Peiliang Shen, Chi Sun Poon, Gang Li   +6 more
wiley   +1 more source

A Study on the Effect of Ceramic Polishing Powder on the Nucleation and Growth of Hydrates in Cement Paste

Crystals, 2019
The production of cement leads to a large amount of CO2 emission. Using industrial waste slag, such as ceramic polishing powder (PP), to replace part of Portland cement can reduce the pollution caused by the cement industry and solid waste disposal.
Liquan Wang, Ziyang Liu, Shida Xu, Xiaowei Ouyang, Dong Ouyang, Chujie Jiao, Yong Zhang   +6 more
doaj   +1 more source

Effects of superplasticiser on rheology and cohesiveness of CSF cement paste [PDF]

, 2011
Superplasticiser (SP) is now an indispensable ingredient for the production of concrete. However, its proper use is a great concern because its over-dosage could lead to drastic reduction in the cohesiveness of concrete.
Chen, JJ, Fung, WWS, Kwan, AKH
core   +1 more source

Hydrated Portland cement paste

Materiales de Construcción, 1975
Not ...
openaire   +4 more sources

Civilian Occupational Exposure to Vapors, Gas, Dust, or Fumes and Respiratory Health Among United States Military Veterans

American Journal of Industrial Medicine, EarlyView.
ABSTRACT Background We investigated associations of self‐reported and job exposure matrix (JEM) assigned civilian occupational exposure to vapors, gas, dust, or fumes (VGDF) with respiratory symptoms among previously deployed US Veterans. Methods An interviewer‐administered questionnaire ascertained self‐reported civilian occupational VGDF exposure.
Sahra Mohazzab‐Hosseinian, Carrie A. Redlich, Anna M. Korpak, Andrew K. I. Timmons, Nicholas L. Smith, Karen S. Nakayama, Farrah Kheradmand, Vincent S. Fan, Michael Jerrett, Philippe R. Montgrain, Christine H. Wendt, Ware G. Kuschner, Emily S. Wan, Eric Garshick, Paul D. Blanc   +14 more
wiley   +1 more source

Injectable Bone Cements: A Generational Framework for Bioactivity, Porosity, and Mechanobiological Design at the Nanoscale

Advanced NanoBiomed Research, EarlyView.
Key demographic, biological, and material considerations that drive the need for advanced injectable bone cement technologies. Injectable bone cements (IBCs) are widely used in orthopaedic and craniofacial applications due to their minimally invasive delivery and ability to provide early mechanical stabilisation.
Frank Fei, Yogambha Ramaswamy, Young Jung No   +2 more
wiley   +1 more source

Magnesium-Containing Slurry as Technogenic Alternative Raw Material for Magnesium Oxychloride Cement [PDF]

, 2019
It has been shown experimentally that a waste of magnesium metal production is a realistic alternative to naturally occurring cement raw materials. The waste is the carnallite slurry forming during the chlorination stage.
Lipunov, I. N., Pervova, I. G.
core  

Stress development at the cement paste-steel interface for thin cement paste coatings

Cement and Concrete Research, 1989
Abstract A novel technique for determining the development of stress at the steel-cement interface for thin cement paste coatings is briefly described. A series of interfacial stress-hydration time curves are presented for three matrix systems: cement + silica fume, cement + calcium carbonate, and tricalcium aluminate + gypsum.
Beaudoin, J. J., Feldman, R. F., Ramachandran, V. S.   +2 more
openaire   +4 more sources