Results 51 to 60 of about 2,606 (183)
This study demonstrates the successful incorporation of Spent Foundry Sand (SFS) as a sustainable alternative to natural sand in concrete, enhancing compressive and tensile strengths by up to 26% and 12.87%, respectively, while reducing chloride permeability.
Yiren Wang, Lian Ju, Yibo Wang, Wei Liu
wiley +1 more source
Abstract The use of steel fiber‐reinforced concrete (SFRC) has seen a significant rise in the construction industry due to advancements in material science, improved quality, and cost efficiency. Similarly, the importance of fastening systems in construction has grown, necessitating robust research on the performance of fasteners in SFRC to ensure safe
Nikolaos Mellios, Panagiotis Spyridis
wiley +1 more source
ABSTRACT This study aimed to compare the physicochemical properties of EndoSequence Root Repair Material (ERRM) Fast and CeraPutty with ProRoot MTA and Biodentine, focusing on setting time, radiopacity, microhardness, and pH. Setting time was measured using a Gilmore‐type indenter applied every 5 min until no indentation was observed (n = 15 per group).
So‐Mang Lee +3 more
wiley +1 more source
ABSTRACT The objective of this study was to assess the hydration, crystalline structure, and setting of bioceramic ready‐to‐use and powder/liquid sealers in dry and wet root canal dentine. Thirty‐two single‐rooted human teeth were embedded in acrylic resin and sectioned into 2‐mm segments.
Thiago Bessa Marconato Antunes +8 more
wiley +1 more source
Do PCEs Adsorb Preferentially on OPC or Calcined Clay?
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
Experimental study on influence of plasticizer on fluidity of convection- solidified silt
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]
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
Introducing Pure Calcium Orthophosphate Gels and Aerogels
The synthesis of calcium phosphate‐based gels and aerogels is reported, which exhibit highly porous structures built up of networks of nanoparticles. In case of amorphous aerogels, this leads to yet unmatched specific BET surface areas, making these materials especially interesting for biomedical applications.
Oliver Jeske +4 more
wiley +1 more source
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
Erosion Process of a Dental Polycarboxylate Cement
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

