Results 21 to 30 of about 552,793 (295)
Porosity Parameters Of Cement Stone Containing Chemical Admixtures Of Different Purpose
Mokslas: Lietuvos Ateitis, 2013 The conducted research has established a complex influenceand the impact of separate chemical admixtures of differentpurpose on the parameters of the porosity of hardened cementpaste such as open and closed porosity, the average size of poresand the ...
Lukas Venčkauskas, Mindaugas Daukšys
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Advances in Civil Engineering, 2018 An approximate theoretical validation of the measured variation of ultrasound velocity with porosity of dry and saturated cement paste is proposed using finite element analysis of cement paste assuming as a multiphase composite.
Zhenting Zou, Jay N. Meegoda
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Rheology of lime paste—a comparison with cement paste [PDF]
Rheologica Acta, 2015 The rheological properties of a suspension of lime in water (lime putty) are studied with the help of creep tests in a wide range of deformations including very small values. The results are compared with those obtained with a cement paste and several similarities between the two systems are observed.
Fourmentin, Marine +6 more
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Applied Sciences, 2022 Research shows that ultrasonic vibratory stirring can effectively increase CO2 absorption by cement slurry. However, with the increase in CO2 absorption, the fluidity of slurry begins to decrease.
Lili Liu +3 more
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Onset of Cohesion in Cement Paste [PDF]
Langmuir, 2004 It is generally agreed that the cohesion of cement paste occurs through the formation of a network of nanoparticles of a calcium-silicate-hydrate ("C-S-H"). However, the mechanism by which these particles develop this cohesion has not been established.
B, Jönsson +3 more
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Fracture Properties Evaluation of Cellulose Nanocrystals Cement Paste
Materials, 2020 Due to the need for high-performance and sustainable building materials, the investigation of the determination of fracture toughness of cement paste using new and sustainable materials, such as cellulose nanocrystals (CNCs) is worthwhile.
S. Ghahari +3 more
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Renmin Zhujiang, 2023 In order to explore the applicability of acrylic emulsion cement paste in concrete surface protection of water conveyance structures,the fluidity,tensile strength,compressive strength,and flexural strength of acrylic emulsion cement paste were analyzed ...
CUI Dehao +4 more
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Advances in Materials Science and Engineering, 2019 The surface hydrophilicity of thermoplastic rubber (TPR) is poor, and the effect of using it directly in oil well cement is not good. TPR was modified by different silane coupling agents, and the hydrophilicity of the modified TPR was studied by Fourier ...
Jianjian Song +6 more
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Complex admixtures for high-strength concrete
Journal of Civil Engineering and Management, 2002 The influence of naphthalene formaldehyde superplasticizers (NFS), lignosulfonate plasticizers (LSP) and silica fume on cement paste properties and complex usage of these admixtures for high-strength concrete production are investigated in this research.
Gintautas Skripkiūnas +2 more
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Microstructure evolution of hydrated cement pastes [PDF]
Physical Review E, 2005 We propose an original method based on both proton nuclear magnetic relaxation dispersion and high-resolution NMR spectra to investigate the microstructure of synthesized Ca3SiO5-hydrated cement paste. This method allows a clear assessment of the local proton chemical sites as well as the determination of dynamical information of moving proton species ...
Plassais, A. +6 more
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