Results 61 to 70 of about 4,274 (169)

Long-term mechanical properties of lime-pozzolan mortars: The role of amorphous Al2O3 [PDF]

open access: yesMATEC Web of Conferences
Today, lime-pozzolan mortars are being used in the repair of historic buildings, replacing the lime-cement mortars that were previously used in this practice, but were incompatible with historic mortars.
Vyšvařil Martin   +3 more
doaj   +1 more source

Evaluating the Effect of Binder Constituents on Ferrous Carbonate Formation in Ferrock‐Type Cementitious Binder

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 9, September 2026.
ABSTRACT Several industrial by‐products, process residues, and naturally extracted resources are rich in iron, providing a strong basis to explore their potential as cementitious materials. Cementitious composites in which ferrous carbonate is the primary binding phase have been investigated intermittently over the last decade.
Vineet Shah   +3 more
wiley   +1 more source

Evaluation of pozzolime mixtures as a sustainable binder to replace portland cement in structural concrete

open access: yesMATEC Web of Conferences, 2017
This study aimed to evaluate the properties of concrete mixes produced mainly of hydrated lime and different types of Pozzolan. This mixture, which is nominated as PozzoLime, is presented as an alternative sustainable binder to replace Portland cement in
Kadum Nahida   +2 more
doaj   +1 more source

Study Pembuatan Durable Cement dengan Penambahan Pozzolan Silica Fume

open access: yesJurnal Teknik Kimia dan Lingkungan, 2018
Selama ini silica fume dikenal sebagai bahan campuran pembuatan beton karena dapat meningkatkan kuat tekan beton, menurunkan permeabilitas beton dan memiliki ketahanan sulfat yang tinggi.
Nanik Hendrawati   +2 more
doaj   +1 more source

Effect of acidic volcanic perlite rock on physio-mechanical properties and microstructure of natural pozzolan based geopolymers

open access: yesCase Studies in Construction Materials, 2021
The paper presents the combined effect of pozzolan, as an alkaline volcanic rock, and perlite, as an acidic volcanic rock, in the synthesis of geopolymers. The perlite proportion varied between 0% and 50% by weight. A mixture of sodium silicate (Na2SiO3)
Ayoub Aziz   +8 more
doaj   +1 more source

Synergistic Effects of Silica and Calcium‐Based Dual Admixtures on the Flowability, Microstructure, and Strength Development in Low‐Carbon Concrete

open access: yesApplied Research, Volume 5, Issue 4, August 2026.
ABSTRACT Eco‐friendly construction practices have emerged as a cornerstone of modern development. Due to the substantial carbon emissions from cement production, there is a growing demand for supplementary cementitious materials. This study investigated the synergistic effects of two different wastes, silica‐rich rice husk ash (RHA) and calcium‐rich ...
Md. Soybur Rahman, Zakaria Hossain
wiley   +1 more source

Alkali-reduced Bauxite Residue as Novel SCM

open access: yesNordic Concrete Research, 2020
Bauxite residue is a major waste stream available in large volumes globally that can cause risks to the surrounding environment (e.g. ecotoxicity) when disposed and stored by conventional methods.
Danner Tobias   +2 more
doaj   +1 more source

Impact of Na and K Activators on Properties of Class F and C Fly Ash‐Based Geopolymers

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 7, July 2026.
This study evaluates the comparative impacts of sodium (Na) and potassium (K) activators on the mechanical properties and microstructural development of Class F and Class C fly ash‐based geopolymers. ABSTRACT This study investigates the mechanical and microstructural evolution of geopolymers synthesized from Class F and Class C fly ash using two ...
Mehrzad Mohabbi
wiley   +1 more source

Co‐Calcination of Silicate or Aluminosilicate Network of Clay and Non‐Clay Minerals With NaOH: Physicochemical Insights

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 6, June 2026.
Effects of co‐calcination with alkali hydroxide on pure clay minerals (kaolinite, montmorillonite) and typical impure minerals (quartz, feldspar) are presented. Co‐calcining montmorillonite and quartz with sodium hydroxide improves their reactivity. Co‐calcining kaolinite with sodium hydroxide reduces its reactivity.
Ishrat Baki Borno   +3 more
wiley   +1 more source

Durability Of Natural Pozzolan-based Mortar Exposed To Sulfate Attack [PDF]

open access: yes, 2016
Articale in Journal of fundamental and Applied Sciences Vol. 08, N. 02Cement is a strategic commodity in the civil engineering for the construction of reinforced concrete structures.
Langlet, T.   +5 more
core   +2 more sources

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