Results 91 to 100 of about 3,724 (225)

Effects of viscosity-reducing and early-strength-enhancing polycarboxylate superplasticiser on cement-based materials with 50% GGBFS

, 2019
The advantages and disadvantages of cement-based materials with high-volume ground-granulated blast-furnace slag (GGBFS) are known. The two disadvantages of higher viscosity and lower early strength have still not been well solved in common practice. In
Jinbao Wen, Xiusheng Tang
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Polycarboxylate / nanosilica modified quaternary cement formulations - enhancements and limitations [PDF]

, 2018
The effect of polycarboxylate/nanosilica (nS) particles in quaternary cement formulations comprising Portland cement (PC), limestone powder (LS) and fly ash (FA) was investigated for the first time.
Paine, Kevin, Styliani Papatzani, Kevin Paine, Papatzani, Styliani   +3 more
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Enhancing thixotropy of fresh cement pastes with nanoclay in presence of polycarboxylate ether superplasticizer (PCE)

, 2018
Nanoclay, a thermal treated, purified attapulgite clay, has been used to increase thixotropy. However, the effect of nanoclay in presence of water reducing agent, such as PCE, on rheology, and the compatibility between nanoclay and PCE have not been well
Qian, YeUGent8020025420429759550058126301C5AE-ECC0-11E6-94FE-5D42AE28A064, Qian, Ye, De Schutter, Geert, De Schutter, GeertTW148010008261730000-0001-5603-2616F4949240-F0ED-11E1-A9DE-61C894A0A6B4   +3 more
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Comparative study of retention of fiber-reinforced post at middle and cervical one thirds of root canal cemented by polycarboxylate and zinc phosphate cements measured at different storage times

Journal of Baghdad College of Dentistry, 2014
Background: The purpose of this study was to compare regional bond strength at middle and cervical thirds of the root canal among glass fiber-reinforced composite (FRC) endodontic posts cemented with different cements, using the push-out test to ...
Saad Zabar
doaj  

Increased antibacterial activity of zinc polycarboxylate cement by the addition of chlorhexidine gluconate in fixed prosthodontics

, 2005
Purpose: This study evaluated the antibacterial activity of water-activated zinc polycarboxylate cement with adjunctive 0.12% chlorhexidine gluconate on the subgingival microbiota in fixed partial dentures.
Baysallar, M, Akca, E, Dogan, B, Doganci, L, Bal, B, Cetiner, D, Orug, BO, Kucukkaraaslan, A   +7 more
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Performance Analysis of Tunnel Water Plugging Engineering Slurry Based on Polycarboxylate Superplasticizer

Medžiagotyra
In response to the low efficiency of water plugging slurry in high temperature tunnel engineering, this research explores the optimization configuration of tunnel water plugging slurry.
Daiqiang ZHU, Qiao HE, Hui YANG
doaj   +1 more source

Factors affecting the suitability of superplasticiser-amended cement for the encapsulation of radioactive waste [PDF]

, 2018
Organic superplasticisers improve the flow properties of cement, offering operational advantages for the disposal of radioactive wastes. However, there are concerns that they could increase the mobility of encapsulated contaminants significantly.
Monica Felipe-Sotelo, Felipe-Sotelo, Monica, Matthew Isaacs, Hinchliff, John, John Hinchliff, David Read, Isaacs, Matthew, Read, David   +7 more
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Synthesis and characterization of high-performance cross-linked polycarboxylate superplasticizers

, 2019
Cross-linked sustained-release polycarboxylate superplasticizers (SPs) are superior alternative to the comb-type polycarboxylate SPs due to they offer both a high fluidity and a good retention effect for concrete slurry.
Liao, Bing, Zhang, Jingfei, Li, Simin, Pang, Hao, Huang, Jianheng, Lin, Xiuju   +5 more
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The comparison of tensile strength of polycarboxylate cement among different surfaces of implant custom abutments

, 2018
University of Minnesota M.S. thesis. June 2018. Major: Dentistry. Advisor: Heather Conrad. 1 computer file (PDF); vii, 43 pages.Purpose This in-vitro study was designed from a clinical case and investigated how mechanical and chemical modifications on ...
Hickman, Samuel
core  

Experimental Study on the Effect of Polycarboxylate Superplasticizer on the Performance of Cement-Based Grouting Materials

Polycarboxylate superplasticizers BMC-L and BMC-S were utilized as modifiers in the formulation of novel cement-based grouting materials. Indoor tests were conducted on 32 groups of cement slurries, varying by water–cement ratio (0.5:1 and 0.6:1 ...
Le Tian, Jiwei Zhang, Shujie Liu, Qinghao Tian, Jinze Sun, Wen He, Zhijie Yu   +6 more
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