Portland Cement Pastes with 3-Aminopropyltriethoxysilane Functionalized Nanosilica: Scientific, Hydration and Microstructural Aspects

2021 ◽  
Author(s):  
Julliana Simas Vasconcellos ◽  
Yuri Sotero Bomfim Fraga ◽  
João Henrique da Silva Rêgo ◽  
Patrícia Pommé Confessori Sartoratto ◽  
Moisés Frías Rojas
Keyword(s):  
Portland Cement ◽  
Cement Pastes

Hardened portland cement pastes of low porosity

1973 ◽  
Vol 3 (3) ◽  
pp. 279-293 ◽  
Author(s):  
Stephen Brunauer ◽  
Jan Skalny ◽  
Ivan Odler ◽  
Marvin Yudenfreund
Keyword(s):  
Portland Cement ◽  
Cement Pastes ◽  
Low Porosity

Effect of microcrystalline cellulose on geopolymer and Portland cement pastes mechanical performance

2021 ◽  
Vol 288 ◽  
pp. 123053
Author(s):  
Saulo Rocha Ferreira ◽  
Neven Ukrainczyk ◽  
Keoma Defáveri do Carmo e Silva ◽  
Luiz Eduardo Silva ◽  
Eduardo Koenders
Keyword(s):  
Portland Cement ◽  
Microcrystalline Cellulose ◽  
Mechanical Performance ◽  
Cement Pastes

Electrochemical behavior of Portland cement pastes containing phosphonates

1995 ◽  
Vol 2 (5) ◽  
pp. 182-188 ◽  
Author(s):  
P. Gu ◽  
V.S. Ramachandran ◽  
J.J. Beaudoin ◽  
E. Quinn
Keyword(s):  
Portland Cement ◽  
Electrochemical Behavior ◽  
Cement Pastes

Early carbonation curing effects on the microstructure of high initial strength Portland cement pastes

2019 ◽  
Vol 31 (8) ◽  
pp. 382-388 ◽  
Author(s):  
Alex Neves Junior ◽  
Romildo Dias Toledo Filho ◽  
Jo Dweck ◽  
Frank K. Cartledged ◽  
Eduardo de Moraes Rego Fairbairn
Keyword(s):  
Portland Cement ◽  
Cement Pastes ◽  
Initial Strength ◽  
Carbonation Curing

Influence of Polyepoxysuccinic Acid on Solid Phase Products in Portland Cement Pastes

2018 ◽  
Vol 33 (5) ◽  
pp. 1140-1149 ◽  
Author(s):  
Chenguang Hu ◽  
Xiaoyan Wang ◽  
Ruiying Bai ◽  
Gang Liu ◽  
Xiaoxin Feng ◽  
...  
Keyword(s):  
Portland Cement ◽  
Solid Phase ◽  
Cement Pastes

Interaction Between Naphthalene Sulfonate and Silica Fume in Portland Cement Pastes

1987 ◽  
Vol 114 ◽  
Author(s):  
Sidney Diamond ◽  
Leslie J. Struble
Keyword(s):  
Portland Cement ◽  
Silica Fume ◽  
Cement Paste ◽  
Uv Spectrophotometry ◽  
Residual Concentration ◽  
Cement Pastes ◽  
High Ph ◽  
Substantial Concentration ◽  
Low Dosage

ABSTRACTPortland cement pastes were mixed with predissolved naphthalene sulfonate superplasticizer at normal water:cement ratios. Solutions were separated from the fresh pastes at intervals and the residual concentration of the superplasticizer determined by UV spectrophotometry. At low dosage levels essentially all of the superplasticizer was found to be removed from solution within a few minutes; at high dosage levels a substantial concentration was maintained in solution at least to approximately the time of set. In pastes in which silica fume replaced 10% by weight of the cement, it was found that the incorporation of silica fume significantly increased the uptake of superplasticizer. In separate trials it was found that the silica fume by itself adsorbed little superplasticizer, even from high pH solution simulating that of cement paste.

DTA contribution to study of hydration fly ash - portland cement pastes

1985 ◽  
Vol 93 ◽  
pp. 601-604 ◽  
Author(s):  
Štefan Slanička ◽  
Ján Madej ◽  
Doris Jakubeková
Keyword(s):  
Fly Ash ◽  
Portland Cement ◽  
Cement Pastes
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