Results 11 to 20 of about 3,209 (166)

About influence of some superplasticizers on hydration and the structure of hardened cement paste [PDF]

open access: yesMATEC Web of Conferences, 2017
Current construction can not be imagined without the use of high-quality mortars and concretes obtained by using high-tech and workable mixtures with lower water content.
Koryanova Yulia, Nesvetaev Grigory
doaj   +3 more sources

Effect of some prepared superplasticizers on the rheological properties of oil well cement slurries

open access: yesEgyptian Journal of Petroleum, 2018
Three superplasticizers namely: cyclohexanone glyoxylic sulfanilate (CGS), acetone glyoxylic sulfanilate (AGS) and melamine glyoxylic sulfanilate (MGS) were prepared and characterized using FT-IR.
I. Aiad   +4 more
doaj   +2 more sources

Effect of superplasticizers on the hydration kinetic and mechanical properties of Portland cement pastes [PDF]

open access: yesJournal of Advanced Research, 2012
Hydration of ordinary Portland cement in the presence of two different types of superplasticizers namely sodium lignosulfonate (LS) and naphthalene sulfonate-formaldehyde condensate (NSF) was studied using different experimental techniques ...
Safaa M.A. El-Gamal   +2 more
doaj   +2 more sources

Effect of Various Superplasticizers on the Textural Properties of Silica Fume Pozzolanic Cements

open access: yesAdsorption Science & Technology, 2002
The influence of different superplasticizers on the hydration and textural characteristics of hardened pozzolanic cement pastes was evaluated. Thus, the BET surface areas and pore structures of hardened cement pastes containing different amounts of ...
Nasr-Allah M. Deraz   +2 more
doaj   +2 more sources

Effect of superplasticizers with different molecular structures on fly ash-based geopolymer in early reaction stages [PDF]

open access: yes, 2021
The effectiveness of superplasticizers on the workability of fly ash-based geopolymer (FAG) pastes has been known to be far less obvious than in the case of cement pastes.
Wang, Chenman
core   +1 more source

THE ROLE OF SOLVENT QUALITY AND OF COMPETITIVE ADSORPTION ON THE EFFICIENCY OF SUPERPLASTICIZERS IN ALKALI-ACTIVATED SLAG PASTES [PDF]

open access: yes, 2022
The loss of dispersing ability by polycarboxylates ether superplasticizers in alkali-activated slag cements has been widely reported. However, no clear-cut explanation of this phenomenon can be found to date. Therefore, the behaviour of poly(methacrylate-
Pascal, Boustingorry   +8 more
core   +2 more sources

Developing Innovative Cement Composites Containing Vine Shoot Waste and Superplasticizers

open access: yes, 2023
The expansion of the construction industry requires large quantities of construction materials; therefore, the utilization of alternative raw materials that reduce the environmental impact and enhance the quality of the construction materials has ...
Oana Cadar   +6 more
core   +1 more source

Investigations on Stability of Polycarboxylate Superplasticizers in Alkaline Activators for Geopolymer Binders [PDF]

open access: yes, 2023
Calcined clays are interesting starting materials to be used as SCMs (supplementary cementitious materials) in cements or to be converted to geopolymers by activation with a high alkaline activator.
Partschefeld, Stephan (Dr.-Ing.)   +4 more
core   +2 more sources

Hydrophilicity as a measure of the efficiency of the superplasticisers

open access: yesBudownictwo i Architektura, 2013
This paper presents the results of chemical structural investigations of four new-generation superplasticizers (denoted here as SP-A through SP-M2) used in concrete production engineering. The commercial product samples, the gel permeation chromatography
Elżbieta Janowska-Renkas
doaj   +1 more source

Dispersion of Carbon Nanotubes with Different Types of Superplasticizer as a Dispersing Agent for Self-Sensing Cementitious Materials

open access: yesApplied Sciences, 2021
Due to their exceptional electrical properties, carbon nanotubes (CNTs) can be applied as conductive fillers to develop self-sensing cement-based matrices.
Pedro de Almeida Carísio   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy