Results 81 to 90 of about 9,303 (212)

Do PCEs Adsorb Preferentially on OPC or Calcined Clay?

Journal of the American Ceramic Society, Volume 109, Issue 4, April 2026.
ABSTRACT In multi‐component binders, admixtures such as polycarboxylates (PCEs) may exhibit preferential adsorption onto one component. Hence, for the first time PCE adsorption on ordinary Portland cement (OPC) and calcined clay (CC) in an OPC/CC blend was quantified by separating the OPC and CC particles from the hydrated cement employing a ...
Jiaxin Chen, Johann Plank
wiley   +1 more source

Synthesis and Properties of a Debonded Polycarboxylic Acid Superplasticizer

IOP Conference Series: Earth and Environmental Science, 2020
Abstract High-strength concrete has always had the problem of high viscosity which is not easy to construct, but reducing viscosity will inevitably affect the strength of concrete. In this paper, a kind of polycarboxylic acid series viscosity reducing agent JN-1 was synthesized by adjusting the synthetic raw material, which can reduce ...
Guangzhou Li, Qiumin Xiong, Xiaobin Chen, Jican Guan, Wei Dang   +4 more
openaire   +1 more source

Using Rubber Fillers to Fabricate Strain Gradient Material—An Excellent Approach for Developing High‐Toughness Cement‐Based Composites

Engineering Reports, Volume 8, Issue 3, March 2026.
Strain gradient cement‐based composites (SGCC) were fabricated by using rubber fillers in this study. This design of SGCC can realize the function of stress redistribution, multi‐crack dissipation, and efficient energy to improve the toughness of concrete structures.
Keliang Wang, Chuanli Zhong, Zhide Huang, Yueqiang Qi, Gangnian Xu   +4 more
wiley   +1 more source

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

Journal 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, Christopher Grimes, Ian M. Reaney   +2 more
wiley   +1 more source

Retardation mechanism of cement hydration by a comb polyphosphate superplasticizer

, 2022
The retardation mechanism of cement hydration as imparted by the addition of polyphosphate comb superplasticizer to model cement containing C3S, C3A and calcium sulfate hemihydrate is studied using XRD, ss NMR and calorimetry.
Alexander Mezhov, Asher Schmidt, Konstantin Kovler, Schmidt, A., Mezhov, Alexander, Diesendruck, Ch. E., Ira Ben Shir, Ben Shir, I., Kovler, K., Charles E. Diesendruck   +9 more
core   +1 more source

Study on the Influence of Acrylic-Acid Addition Mode on the Performance of Polycarboxylate Slump-Retaining Superplasticizers [PDF]

E3S Web of Conferences
The study employed ethylene glycol monovinyl ether (EPEG) as the primary monomer and utilized a redox initiation system comprising hydrogen peroxide, ferrous sulfate, ascorbic acid, and mercaptoethanol.
Yang Xianxian, Guo Xiujuan, Qiu Nianli, Xiong Qiumin, Chen Xiaobin   +4 more
doaj   +1 more source

Study on the Influencing Factors of Mildew of Polycarboxylate Superplasticizer

IOP Conference Series: Earth and Environmental Science, 2020
Abstract This article discusses the effect on the mildew of polycarboxylic superplasticizer under different environmental temperature, sealing conditions, reaction temperature, acid-ether ratio, initiation system and compounding with different dosage of sodium gluconate.
Mengqin Guan, Liangke Yao, Tianxing Lin, Zhuojun Jiang   +3 more
openaire   +1 more source

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

Structural 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, Katalin Kopecskó, György L. Balázs   +2 more
wiley   +1 more source

Early-age volume changes of extrudable reactive powder concrete

EPJ Web of Conferences, 2010
This article presents a study on the early-age autogenous deformations of Extrudable Reactive Powder Concretes (ERPCs), especially designed for the making of concrete pipes by extrusion.
De Noirfontaine M.N., Mounanga P., Khelidj A., Dunstetter F., Cherkaoui K., Courtial M.   +5 more
doaj   +1 more source

Utilization of cellulose nanocrystal as a bio‐based material and nanosilica in cement‐based systems: A comparative study

Structural Concrete, Volume 27, Issue 1, Page 1255-1280, February 2026.
Abstract Cellulose nanocrystals (CNCs), increasingly utilized in cement‐bound materials, offer improved material properties and enhanced sustainability due to their bio‐based origin. Nanosilica (NS), known for its high reactivity and refinement of cement microstructure, also significantly impacts cement performance.
Ali Satar Jaber Al‐Askary, Didem Oktay, Katalin Kopecskó   +2 more
wiley   +1 more source