scholarly journals Effect of Methyl Cellulose/Poly(Acrylic Acid) Blends on Physico-Mechanical Properties of Portland Cement Pastes

2017 ◽  
Vol 33 (1) ◽  
pp. 450-457 ◽  
Author(s):  
El-Sayed Negim ◽  
Niyazbekova Rimma ◽  
Lyazzat Bekbayeva ◽  
Utelbayeva Akmaral ◽  
Bengin M. Herki ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Acrylic Acid ◽  
Portland Cement ◽  
Methyl Cellulose ◽  
Cement Pastes ◽  
Poly Acrylic Acid

scholarly journals Effect of pH on the physico-mechanical properties and miscibility of methyl cellulose/poly(acrylic acid) blends

2014 ◽  
Vol 101 ◽  
pp. 415-422 ◽  
Author(s):  
E.S.M. Negim ◽  
Zh. A. Nurpeissova ◽  
R.A. Mangazbayeva ◽  
J.M. Khatib ◽  
C. Williams ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Acrylic Acid ◽  
Methyl Cellulose ◽  
Effect Of Ph ◽  
Poly Acrylic Acid

Dually cross-linked single network poly(acrylic acid) hydrogels with superior mechanical properties and water absorbency

Soft Matter ◽  
2016 ◽  
Vol 12 (24) ◽  
pp. 5420-5428 ◽  
Author(s):  
Ming Zhong ◽  
Yi-Tao Liu ◽  
Xiao-Ying Liu ◽  
Fu-Kuan Shi ◽  
Li-Qin Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Acrylic Acid ◽  
Water Absorbency ◽  
Superior Mechanical Properties ◽  
Poly Acrylic Acid

A Study of Crushed Glass as a Replacement for Cement in Cement Pastes

2016 ◽  
Vol 714 ◽  
pp. 86-89
Author(s):  
Jana Zahálková ◽  
Pavla Rovnaníková
Keyword(s):  
Mechanical Properties ◽  
Carbon Dioxide ◽  
Portland Cement ◽  
Natural Resources ◽  
Borosilicate Glass ◽  
Cement Pastes ◽  
Present Trend ◽  
Cement Mixture ◽  
Isothermal Calorimeter

The production of Portland cement is connected with high emissions of greenhouse gases, especially carbon dioxide, and the intensive consumption of energy and natural resources. The present trend is for the replacement of cement by reactive admixtures, which can include ground waste glass, a material which shows pozzolanic activity. This paper deals with the determination of the mechanical properties of cement pastes in which part of the cement mixture (5 to 30 %) was replaced by borosilicate glass. The process by which the hydration of the cement with ground glass began was monitored by an isothermal calorimeter.

Effect of poly(acrylic acid) architecture on setting and mechanical properties of glass ionomer cements

2020 ◽  
Vol 36 (3) ◽  
pp. 377-386 ◽  
Author(s):  
R. Wetzel ◽  
O. Eckardt ◽  
P. Biehl ◽  
D.S. Brauer ◽  
F.H. Schacher
Keyword(s):  
Mechanical Properties ◽  
Acrylic Acid ◽  
Glass Ionomer Cements ◽  
Glass Ionomer ◽  
Poly Acrylic Acid

scholarly journals Time-Stability Dispersion of MWCNTs for the Improvement of Mechanical Properties of Portland Cement Specimens

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4149
Author(s):  
Laura M. Echeverry-Cardona ◽  
Natalia Álzate ◽  
Elisabeth Restrepo-Parra ◽  
Rogelio Ospina ◽  
Jorge H. Quintero-Orozco
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Portland Cement ◽  
Time Stability ◽  
Cement Pastes ◽  
Multi Wall Carbon Nanotubes ◽  
Vis Spectroscopy ◽  
The Stability ◽  
Over Time

This study shows the energy optimization and stabilization in the time of solutions composed of H2O + TX-100 + Multi-Wall Carbon Nanotubes (MWCNTs), used to improve the mechanical properties of Portland cement pastes. For developing this research, sonication energies at 90, 190, 290, 340, 390, 440, 490 and 590 J/g are applied to a colloidal substance (MWCNTs/TX-100 + H2O) with a molarity of 10 mM. Raman spectroscopy analyses showed that, for energies greater than 440 J/g, there are ruptures and fragmentation of the MWCNTs; meanwhile at energies below 390 J/g, better dispersions are obtained. The stability of the dispersion over time was evaluated over 13 weeks using UV-vis spectroscopy and Zeta Potential. With the most relevant data collected, sonication energies of 190, 390 and 490 J/g, at 10 mM were selected at the first and the fourth week of storage to obtain Portland cement specimens. Finally, we found an improvement of the mechanical properties of the samples built with Portland cement and solutions stored for one and four weeks; it can be concluded that the MWCNTs improved the hydration period.

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