Results 81 to 90 of about 3,209 (166)

The Working Mechanism of Starch and Diutan Gum in Cementitious and Limestone Dispersions in Presence of Polycarboxylate Ether Superplasticizers

Applied Rheology, 2013
Polysaccharides provide high potential to be used as rheology modifying admixtures in mineral binder systems for the construction industry such as concrete or mortar.
Schmidt Wolfram, Brouwers H.J.H., Kühne Hans-Carsten, Meng Birgit   +3 more
doaj   +1 more source

Effect of superplasticizers on hydration and setting behaviour of cements

, 2009
Cement-superplasticizer compatibility has become a major area of interest due to the increasing use of high performance and self-compacting concrete mixtures.
De Belie, Nele, Robeyst, Nicolas
core  

Uso dei superfluidificanti nel calcestruzzo = Use of superplasticizers in concrete

, 1987
Superplasticizers are increasingly being used in concrete technology. The review includes types, classification and uses of superplasticizers and their action on cement paste, fresh and hardened concretes.
Ramachandran, V. S.
core   +1 more source

Valorization of Jute Powder in Mortars: Homogeneity and Mechanical Performance

BioResources
Jute fiber powder (0.25% to 2% of cement weight, with a 0.25% increment) was evaluated for reinforcing cement mortars. The addition of jute powder maintains a constant flow diameter of 180 mm, ensuring good workability and homogeneity.
Comlan Vianney Zomahoun, Kocouvi Agapi Houanou, Mark Sodomon, Svetlana Vasilyevna Samchenko   +3 more
doaj  

Study on the microstructural influence of polycarboxylate, naphthalene, and melamine superplasticizers in alkali-activated slag fluid solidified clay soil

Reviews on Advanced Materials Science
The high viscosity of alkali-activated slag fluid solidified soil (AAS-FSS) restricts its use in backfilling engineering, yet the effectiveness and mechanisms of common superplasticizers in high-soil-content AAS-FSS remain insufficiently understood. This
Yang Xinyu, Jia Zhirong, Jiang Xuekun, Wang Xuejing, Han Yaoxi, Wu Jiantong   +5 more
doaj   +1 more source

Enhancing Construction Efficiency and Structural Integrity of Ambient-Cured UHPC Incorporating Sulfoaluminate Cement Through Liquid Superplasticizer Optimization

Buildings
The addition of sulfoaluminate cement (SAC) to ultra-high-performance concrete (UHPC) enables sustainable high-speed construction due to the high 7-day strength without thermal curing. The fast hydration of SAC, however, endangers the admixture efficacy,
Anwar Saleem, Ergang Xiong, Mabor Achol Samuel, Mahmood Haris   +3 more
doaj   +1 more source

The effect of polycarboxylate superplasticizer on the strength and hydration performance of alkali slag building materials

Designed Monomers and Polymers
To explore the effect of polycarboxylate superplasticizers on the strength and hydration performance of alkali slag building materials, this study prepared cross-linked polycarboxylate superplasticizers with different ratios of hydrogen peroxide, methyl ...
Guide Liu, Xin Zheng, Guoliang Xie, Gongliang Liu   +3 more
doaj   +1 more source

Influence of Superplasticizers on the Diffusion-Controlled Synthesis of Gypsum Crystals

Crystals
Gypsum (CaSO4·2H2O) crystallization underpins numerous industrial processes, yet its response to chemical admixtures remains incompletely understood. This study investigates diffusion-controlled crystal growth in a coaxial test tube system to evaluate ...
F. Kakar, C. Pritzel, T. Kowald, M. S. Killian   +3 more
doaj   +1 more source

Exploring superplasticizers impact on MgO-based binder

LAUREA MAGISTRALELa produzione di cemento Portland convenzionale contribuisce in modo significativo alle emissioni globali di anidride carbonica (CO2) e al consumo di energia. Spinta dall’imperativo delle pratiche sostenibili, esemplificato dall’adozione
Tayebi, Morteza
core  

Adsorption Characteristics of Polycarboxylate-type Superplasticizers on the Surface of Gypsum Particles and Its Adsorption-dispersion Mechanism

工程科学与技术, 2008
:By using UV adsorption spectrophotometer, micro electrophoresis potential analyzer, and X ray photo spectroscopy, the adsorption characteristics and surface electrochemical properties of polycarboxylate type superplasticizer（PCS）on gypsum surface and ...
doaj