Results 51 to 60 of about 8,189 (252)
Different effects of NSF and PCE superplasticizer on adsorption, dynamic yield stress and thixotropy of cement pastes [PDF]
, 2018 This study compares the differences and similarities of two types of superplasticizers-NSF (Naphthalene Sulfonate Formaldehyde) and PCE (PolyCarboxylate Ester)-in fresh cement paste systems, in terms of adsorption, dynamic yield stress, and thixotropic ...
De Schutter, Geert, Qian, Ye
core +2 more sources
Enhancing printability of 3D printed concrete by using metakaolin and silica fume
Structural Concrete, EarlyView.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
Structural Concrete, EarlyView.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 +2 more
wiley +1 more source
Study on the Influence of Acrylic-Acid Addition Mode on the Performance of Polycarboxylate Slump-Retaining Superplasticizers [PDF]
E3S Web of ConferencesThe 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 +4 more
doaj +1 more source
Study on the Permeability of Modified Bentonite Slurry in Landfill
Advances in Materials Science and Engineering, 2020 The impermeability of cutoff wall is one of the most important factors affecting the life of landfill. Hence, we used sodium carboxymethyl cellulose to modify bentonite and developed a modified bentonite-cement-fly ash antiseepage slurry with a low ...
Zenan Zhang, Guozhong Dai, Yanmin Sheng
doaj +1 more source
Journal of Materials Research and Technology, 2022 With the development of underground space, underground construction inevitably affects the safety of surrounding structures. Capsule grouting technology (CGT) is proposed to protect adjacent structures from the impact of underground construction.
Gang Zheng +6 more
doaj +1 more source
Towards tailored superplasticizers [PDF]
, 2005 Superplasticizers (SP) of the “new generation” are essentially polycarboxylate polymers. Polymers of this family can be produced with almost infinite variations in their chemical structure, which allow the fulfilment of specific (tailored) properties ...
Bowen, P., Houst, Y.F., Perche, F.
core
DFT Study on the Compatibility Between Bentonite Clay Mineral and Hydration Products With the Polycarboxylate Water Reducer in the Cement Hydration Process [PDF]
, 2022 Teng Huang +3 more
openalex +1 more source
Structural Concrete, EarlyView.Abstract Fiber addition is a common strategy to enhance concrete's durability, avoiding cracks and reducing penetration of harmful agents. In this research, a sustainable fiber‐like material obtained from mechanical recycling of dismantled wind‐turbine blades and made up of glass fiber‐reinforced polymer (GFRP) fibers and microfibers, balsa wood, and ...
Javier Manso‐Morato +4 more
wiley +1 more source
Erosion Process of Polycarboxylate Cements in Organic Acids
Dental Materials Journal, 1983 The amounts of Zn and Mg eluted from the zinc polycarboxylate cement into acetic, lactic and citric acids increased with an increase in the formation constant of the acid-Zn or -Mg complexes. The erosion process consisted of two processes, namely, dissolution of the unreacted cement powder and decomposition of the matrix.
S, Matsuya +4 more
openaire +3 more sources