Results 71 to 80 of about 3,724 (225)

Quantifying the impact of montmorillonite on water demand and polycarboxylate superplasticizer efficiency in cement pastes

open access: yes
The presence of montmorillonite (MMT) as an impurity in aggregates and limestone diminishes the plasticization efficacy of polycarboxylate ether (PCE) superplasticizers in fresh cement pastes.
Ye, Hailong   +2 more
core   +1 more source

Experimental study on influence of plasticizer on fluidity of convection- solidified silt

open access: yesYantu gongcheng xuebao
Compared with the traditional backfill materials, the performance-controlled fluidized solidified (PCFS) backfill materials are characterized by high flow state and self-compaction, which can effectively avoid engineering problems caused by insufficient ...
WANG Wenchong 1, HUANG Yinghao 1, WANG Shuo 1, PENG Guangyi 2, WANG Huai 2
doaj   +1 more source

Study on the Adaptability of Polycarboxylate Superplasticizer to Cement in Guangdong Area [PDF]

open access: yesE3S Web of Conferences
There are many types of cement in Guangdong, each with its own differences, so it is important to study the adaptability of polycarboxylate superplasticizer to cement in Guangdong.
Wang Baoxian   +3 more
doaj   +1 more source

Erosion Process of a Dental Polycarboxylate Cement

open access: yesJournal of the Ceramic Association, Japan, 1987
Erosion process of the zinc polycarboxylate cement in various acid solutions was investigated by means of determination of Zn and Mg leached from the cement and SEM observation of the surface structure. The amount of species leached from the cement increased with increasing dissociation constant of the acid, that is, with decreasing pH of the solution.
MATSUYA, Shigeki   +3 more
openaire   +2 more sources

Cold Sintering of Calcite: A Low‐Temperature Method for the Fabrication of Artificial Marble

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 3, March 2026.
Comparison of the hardness of cold and conventionally sintered calcite with artificial marble. ABSTRACT This study presents a novel approach for the low‐temperature fabrication of dense calcite (CaCO3) without the use of a carbon dioxide (CO2) atmosphere.
Eleni Georgiou   +2 more
wiley   +1 more source

Effect of cement fineness and polycarboxylate dosage on the rheological and mechanical behavior of a mortar

open access: yes, 2018
The use of certain organic additives in the production of mortar and concrete influences the workability and the hydration kinetic of mortar. This results in a modification of some properties, namely rheological behavior and mechanical strength.
Zahia Didouche, Karim Ezziane
core   +2 more sources

Impact of different superplasticizers on hydration, rheology, mechanical strength, and environmental evaluation of LC3 cements

open access: yesCase Studies in Construction Materials
The mineralogical and physicochemical characteristics of the clay can adversely affect the efficiency of polycarboxylate-based superplasticizers, limiting their dispersion capacity.
Francisco Roger Carneiro Ribeiro   +3 more
doaj   +1 more source

1H NMR Spin-Lattice Relaxometry of Cement Pastes with Polycarboxylate Superplasticizers

open access: yes, 2020
1H spin-lattice relaxometry (T1, longitudinal) of cement pastes with 0 to 0.18 wt % polycarboxylate superplasticizers (PCEs) at intervals of 0.06 wt % from 10 min to 1210 min was investigated. Results showed that the main peak in T1 relaxometry of cement
Qi Li   +3 more
core   +1 more source

Experimental data of cement grouting in coarse soils with different superplasticisers

open access: yesData in Brief, 2020
High-range water reducers, such as superplasticisers, can be potentially viable for cement grouting applications. In this study, we investigate the influence of two types of superplasticisers—one based on polycarboxylate ether and another based on ...
Costas A. Anagnostopoulos   +2 more
doaj   +1 more source

Enhancing printability of 3D printed concrete by using metakaolin and silica fume

open access: yesStructural Concrete, Volume 27, Issue 1, Page 1068-1084, February 2026.
Abstract This study investigates the effects of incorporating metakaolin (MK) and silica fume (SF) on the fresh and hardened properties of 3D printed concrete (3DPC). Five mix designs were prepared with MK replacement levels of 0%, 10%, 12.5%, and 15%, along with one mix containing 10% MK and 5% SF.
Marwah M. Thajeel   +2 more
wiley   +1 more source

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