Results 41 to 50 of about 1,419 (184)

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

Journal 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

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

MATEC 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, al-Attar Tareq, Al-Azzawi Zyiad   +2 more
doaj   +1 more source

Study Pembuatan Durable Cement dengan Penambahan Pozzolan Silica Fume

Jurnal 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, Endah Dwi Rahmayanti, Evi Dyah Priapnasar   +2 more
doaj   +1 more source

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

Journal 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, Farzana Mustari Nishat, Maria C. G. Juenger, Warda Ashraf   +3 more
wiley   +1 more source

Impacto de la utilización de puzolanas naturales ecuatorianas

Revista de Investigaciones en Energía, Medio Ambiente y Tecnología, 2017
The cement industry provides the basic material in the production of concrete; but it is one of the most aggressive productions in relation to the environmental component, emitting large amounts of CO2 in the process. Research using new binders that meet
Cesar Mauricio Jarre Castro, Juan José Howland Albear, María Shirlendy Guerrero Alcivar, Salomón Brito   +3 more
doaj   +1 more source

Development of Sustainable Paver Block to Suit Very Heavy Traffic Conditions Using Cassava Peel Ash

Engineering Reports, Volume 8, Issue 5, May 2026.
Sustainable paver blocks were developed using cassava peel ash and silane‐treated glass fibers. The optimized mix achieved superior strength, durability, and impact resistance, meeting IS 15658:2006 standards for heavy traffic. This eco‐friendly approach highlights an effective use of agro‐waste and fiber reinforcement for sustainable infrastructure ...
A. Chithambar Ganesh, Kandukuri Anitha, Ragavan Veeraiah, Parthiban Loganathan, J. Ram Prashath   +4 more
wiley   +1 more source

Alkali-reduced Bauxite Residue as Novel SCM

Nordic 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, Sletnes Malin, Justnes Harald   +2 more
doaj   +1 more source

Chemical and Microstructural Evolution of Cement Pastes with Additives and SCMs During the First 24 h

Journal of the American Ceramic Society, Volume 109, Issue 5, May 2026.
ABSTRACT Early‐age chemical evolution governs the development of hydrate assemblages and microstructure in cementitious systems, especially when additives and supplementary cementitious materials are incorporated. This study investigates the first 24 h of hydration in Portland cement pastes modified with selected additives and supplementary ...
Adeyemi Adesina
wiley   +1 more source

Advanced Applications of Pozzolan-Derived Silica: Hydrophobic Agent Synthesis

Jurnal Rekayasa Kimia & Lingkungan
The Sumatera Barat province of Indonesia, particularly Padang Pariaman Regency, is rich in pozzolan, a natural resource characterized by high silica (SiO₂) and alumina (Al₂O₃) content. Despite its abundance, pozzolan remains underutilized, primarily used
Erda Rahmilaila Desfitri, Endah Mustikaningtias, Fajri Akbar Rizaldi, Ellyta Sari, Reni Desmiarti   +4 more
doaj   +1 more source

Effect of natural pozzolan on strength and temperature distribution of heavyweight concrete at early ages

MATEC Web of Conferences, 2018
The benefits of using mineral additive as a partial replacement for cement in heavyweight concrete are discussed. This paper presents the strength development and temperature distribution of concrete using Class F of natural pozzolan (PU) sourced from ...
Van Lam Tang, Chuc Nguyen Trong, Xuan Hung Ngo, Van Phi Dang, Bulgakov Boris, Bazhenova Sophia   +5 more
doaj   +1 more source