Results 1 to 10 of about 6,026 (164)

Quantitative Evaluation of Carbon Fiber Dispersion in Amorphous Calcium Silicate Hydrate-Based Contact-Hardening Composites [PDF]

Molecules, 2021
Carbon fiber dispersion has a substantial influence on the properties of amorphous calcium silicate hydrate-based contact-hardening composites. In this study, a mixture of carbon fiber and calcium silicate hydrate powder was compressed into solid ...
Guangxiang Ji, Guangqi Xiong, Xiaoqin Peng, Shuping Wang, Chong Wang, Keke Sun, Lu Zeng   +6 more
doaj   +2 more sources

Synthesis, Characterization, and Cementitious Activity of the Magnesium Silicate Hydrate and Calcium Silicate Hydrate from Coal Gangue [PDF]

Molecules
Coal gangue, a prevalent solid waste in the coal industry, has long been a significant concern due to its substantial production volume and potential environmental hazards.
Qing Zhang, Xianglin Zhang, Lulu Wang, Shizhen Zhang   +3 more
doaj   +2 more sources

Preparation of calcium silicate hydrate seeds by means of mechanochemical method and its effect on the early hydration of cement

Advances in Mechanical Engineering, 2019
Calcium silicate hydrate seeding is a promising accelerator for cement hydration. In this work, calcium silicate hydrate nanoparticles with various CaO/SiO 2 -ratios were prepared by means of mechanochemical approach.
Boyuan Wang, Wu Yao, Dietmar Stephan
doaj   +2 more sources

Hydration behaviors of calcium silicate-based biomaterials

Journal of the Formosan Medical Association, 2017
Calcium silicate (CS)-based biomaterials, such as mineral trioxide aggregate (MTA), have become the most popular and convincing material used in restorative endodontic treatments.
Yuan-Ling Lee, Wen-Hsi Wang, Feng-Huie Lin, Chun-Pin Lin   +3 more
doaj   +3 more sources

Solubility and structure of calcium silicate hydrate [PDF]

Cement and Concrete Research, 2004
Abstract The poorly crystalline calcium silicate hydrate (C-S-H) phases that form near room temperature, which include the technically important C-S-H gel phase formed during the hydration of Portland cement, have a broad similarity to the crystalline minerals tobermorite and jennite, but are characterized by extensive atomic imperfections and ...
Jeffrey J Chen, Jeffrey J Thomas, Hamlin M Jennings   +2 more
exaly   +2 more sources

Influence of calcium and alumina-based pozzolanas on the strength properties of low calcium fly ash geopolymer concrete [PDF]

E3S Web of Conferences, 2021
This work presents the effect of Ground granulated blast furnace slag (GGBS), fly ash (FA) and metakaolin (MK) on the strength properties of geopolymer concrete (GPC).
Saiteja Chary K, Shrihari S, Siva Prasad Raju V, Srinivasa Reddy V   +3 more
doaj   +1 more source

A Review: Progress in Molecular Dynamics Simulation of Portland Cement (Geopolymer)—Based Composites and the Interface between These Matrices and Reinforced Material

Buildings, 2023
Molecular dynamics (MD) is an important method for studying the molecular and atomic scale of cement (geopolymer)-based composites which provides an effective method for the optimal design of cementitious materials.
Li Li, Yujie Wei, Qi Feng, Fang Liu, Bin Liu, Beichen Pu   +5 more
doaj   +1 more source

Controlled growth and ordering of poorly-crystalline calcium-silicate-hydrate nanosheets

Communications Materials, 2021
Calcium-silicate-hydrate is the main component of cement, and controlling its structure is vital to its properties. Here, graphene oxide is used to constrain the growth and optimize the assembly of calcium-silicate-hydrate, substantially improving its ...
Felipe Basquiroto de Souza, Ezzatollah Shamsaei, Shujian Chen, Kwesi Sagoe-Crentsil, Wenhui Duan   +4 more
doaj   +1 more source

Comparative mechanical and microstructural properties of high calcium fly ash one-part geopolymers activated with Na2SiO3-anhydrous and NaAlO2

Journal of Materials Research and Technology, 2021
This paper investigates the effect of varying solid alkali activators on the fresh and hardened properties and microstructural changes of one-part geopolymers (OPGs).
Ooi Wan-En, Liew Yun-Ming, Heah Cheng-Yong, Mohd Mustafa Al Bakri Abdullah, Long-Yuan Li, Li Ngee Ho, Foo Kai Loong, Ong Shee-Ween, Ng Hui-Teng, Ng Yong-Sing, Nur Ain Jaya   +10 more
doaj   +1 more source

Valorization of marble powder wastes using rice husk ash to yield enhanced-performance inorganic polymer cements: Phase evolution, microstructure, and micromechanics analyses

Cleaner Engineering and Technology, 2022
The challenge for sustainable development is now constraining scientists, and policymakers to consider alternative materials and processes requiring low energy consumption and low emissions while prioritizing local materials and industrial waste ...
Elie Kamseu, Ange-Therese Akono, Roberto Rosa, Alberto Mariani, Cristina Leonelli   +4 more
doaj   +1 more source