Results 131 to 140 of about 756,097 (272)

Hydrothermal synthesis of calcium silicate hydrates in the presence of 3d-ferromagnetic cations [PDF]

, 1998
1098-1101The effect of-transition metal cations, Fe3+ , Co2+ and Ni2+ on the formation of calcium silicate hydrates CaO·SiO2·H2O in the reaction system has been studied.
Kishar, E A, El-Korashy, S A, AI-Wakeel, E l   +2 more
core  

Tracing Polymerization in Calcium Silicate Hydrates Using Si Isotopic Fractionation

, 2018
Silicate-chains polymerization is a crucial process in calcium silicate hydrate minerals, with large relevance for improving the durability and reducing the environmental impact of cement-based materials.
Ayuela, Andrés, Jose Surga, Jorge S. Dolado (1607074), Jose Surga (5065379), Jorge S. Dolado, Dolado, Jorge S., Romain Dupuis, Andrés Ayuela (1794004), Dupuis, Romain, Surga, Jose, Romain Dupuis (1824310), Andrés Ayuela   +11 more
core   +1 more source

Influence of calcination temperature on the durability of metakaolin concrete and limitations of conventional testing methods

Structural Concrete, EarlyView.
Abstract Incorporating metakaolin (MK) as a partial cement replacement offers a viable pathway to reduce carbon emissions while improving concrete performance. However, its durability behavior remains inconsistent, and the applicability of durability test methods to MK‐based concrete is not well established.
Mayen J. Geu, Yan Zhuge, Xing Ma, Thong M. Pham   +3 more
wiley   +1 more source

Carbonation reactivity of wollastonite enhanced by incorporating sodium-based alkali additives

Journal of CO2 Utilization
The carbonation of wollastonite presents a promising approach for CO2 sequestration and the development of sustainable cementitious materials. This study investigates the enhancement of wollastonite carbonation through the incorporation of sodium-based ...
J.T. Kim, Melaku N. Seifu, Seunghee Park, Seonhyeok Kim, Solmoi Park   +4 more
doaj   +1 more source

Antibacterial Inorganic Coating of Calcium Silicate Hydrate Substrates by Copper Incorporation. [PDF]

ACS Appl Bio Mater, 2022
Schwartz T, Schewe N, Schwotzer M, Heinle M, Mahmood A, Krolla P, Thissen P.   +6 more
europepmc   +1 more source

Characterization of calcium silicate hydrate and calcium hydroxide in nanosilica binder composites [PDF]

, 2013
Pozzolanic reaction is the reaction of vitreous silica with calcium hydroxide (C–H), which is formed during the hydration of the ordinary Portland cement (OPC) binder producing additional calcium silicate hydrate (C–S–H) that resembles tobermorite or ...
Norsuzailina, Sutan, Kiong, C. S., Ibrahim, Yakub   +2 more
core  

High temperature fracture behavior and damage evolution of recycled aggregate concrete produced from metakaolin modified parent concrete

Structural Concrete, EarlyView.
Abstract The increasing use of recycled aggregate concrete (RAC) offers significant environmental benefits by reducing construction and demolition waste; however, its fracture performance and damage evolution under elevated temperatures remain insufficiently understood, particularly when recycled aggregates are derived from metakaolin modified parent ...
Zubair Yousuf, Viktor Hlavička
wiley   +1 more source

Carbon quantum dots enable efficient silica fume utilization by organizing the local hydration environment in cement composites

Results in Engineering
Silica fume (SF) improves the performance of cementitious materials, yet much of it never reacts: poor dispersion and incomplete pozzolanic reaction leave reactive silica idle, while high dosages drive up cost and stiffen the mix.
Anuchida Charuchit, Rungkiat Nganglumpoon, Theerawat Waiyaka, Thanayuth Jongrungrotbaworn, Tidarut Wisuthseriwong, Pitcha Jongvivatsakul, Atichon Kunawisarut, Joongjai Panpranot   +7 more
doaj   +1 more source

An Elucidative Review of the Nanomaterial Effect on the Durability and Calcium-Silicate-Hydrate (C-S-H) Gel Development of Concrete. [PDF]

Gels, 2023
Al-Saffar FY, Wong LS, Paul SC.
europepmc   +1 more source

Development and characterization of eco‐friendly fire‐resistant 3D‐printable concrete utilizing recycled nickel slag

Structural Concrete, EarlyView.
Abstract This study investigates the utilization of industrial nickel slag waste to develop eco‐friendly fire‐resistant 3D concrete printing (3DCP). The benefits of waste nickel slag are bifold: it serves as a partial replacement, reducing carbon‐intensive cement and enhances fire resistance.
Akilesh Ramesh, Sayanthan Ramakrishnan, Hudson Walker, Allan C. Manalo, Anthony Ariyanayagam   +4 more
wiley   +1 more source