Results 51 to 60 of about 1,825 (209)

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

The Effect of Volcanic ash Pozzolan and Metakaolin on Electrochemical Corrosion Resistance of 2304 Duplex Stainless Steel Reinforcing in Concrete Subjected to Marine Environment

International Journal of Electrochemical Science, 2022
The corrosion behavior of 2304 duplex stainless steel reinforcing in concrete structures containing natural basaltic volcanic ash pozzolan and metakaolin as partially replacing materials for Portland cement (PC) in 3.5wt% NaCl solution as a marine ...
Wang Yujie, Zhou Huiwen, Fu Xu
doaj   +1 more source

Natural Pozzolan as a Partial Substitute for Cement in Concrete [PDF]

The Open Construction and Building Technology Journal, 2013
In this paper, the use of natural pozzolan as a partial cement substitute in concrete materials is investigated. By means of a test series, four mixes using three types of natural pozzolan, as well as a Class F fly ash, are evaluated. The effectiveness of each pozzolan in controlling alkali-silica reactions has been studied.
Ghassan K. Al-Chaar, Mouin Alkadi, Panagiotis G. Asteris   +2 more
openaire   +1 more source

A Termite‐Inspired Alternative to Cement

Advanced Functional Materials, Volume 36, Issue 27, 2 April 2026.
A termite‐inspired composite of clay, cellulose, and lignin forms a dense fibrous network with concrete‐like strength (32 MPa) and superior elasticity, processed at ambient temperature. Abstract Clay combined with organic materials is used by termites as a strong and durable construction material for their mounds with minimal environmental impact. Here,
Oren Regev, Peter Fratzl, Emeline Raguin, Markus Antonietti   +3 more
wiley   +1 more source

Alkali-Silica Reactivity of Mortars Containing Natural Pozzolan

, 2019
Alkali-silica reactivity is one of the most recognized deleterious phenomena in Portland cement concrete resulting in cracks, spalling, and other deleterious mechanisms.
Kian, Arash
core   +1 more source

Microstructure and Performance Optimization of Barley Husk Ash–Blended Mortars: A Sustainable Approach to Cement Substitution

Engineering Reports, Volume 8, Issue 4, April 2026.
Barley husk ash (BHA), an agricultural byproduct rich in pozzolanic oxides, was optimized as a sustainable cement substitute. Statistical modeling and experimental validation confirmed 22.75% BHA as the optimal replacement, enhancing mechanical and durability performance while advancing eco‐efficient construction practices.
Behailu Zerihun Hailemariam, Woubishet Zewdu Taffese, Duy‐Hai Vo, Mitiku Damtie Yehualaw   +3 more
wiley   +1 more source

Experimental Investigation of Energy Consumption and CO2 Emission in Cement Kiln in Effect of Replacement Natural Pozzolan by Method of Grinding Clinker and Pozzolan Separately [PDF]

Iranian Journal of Chemistry & Chemical Engineering
In this research, natural pozzolanic materials were used in cement production to reduce the emission of CO2 and energy consumption. The rate of substitution of cement with natural pozzolan powder varied from 20% to 50% in 100 samples.
Somayeh Mansouri, Farhad Shahraki, Jafar Sadeghi, Esmaeil Koohestanian, Mohammad Reza Sardashti Birjandi   +4 more
doaj   +1 more source

Low‐Carbon Composite Cement Mortar Incorporating Local Raw Materials as SCMs: Performance and Life Cycle Analysis

Journal of the American Ceramic Society, Volume 109, Issue 4, April 2026.
Overview of the experimental plan. ABSTRACT Performance and life cycle analysis of composite cement mortars developed using local conventional (blast furnace slag and fly ash) and novel non‐conventional (stone wool, glass wool, calcined Finnish clay, volcanic pozzolan Iceland, and ladle slag) raw materials as supplementary cementitious materials (SCMs)
Adeolu Adediran, Nana Asaam, Javier Manso‐Morato, Priyadharshini Perumal   +3 more
wiley   +1 more source

Enhancing the Pozzolanic Reactivity of Spent Bleaching Earth Ash (SBEA) in Binary Blended Cement Mortar through Calcination

ASM Science Journal, 2022
The effects of calcination on spent bleaching earth ash (SBEA) were investigated in terms of its contribution to pozzolanic reactivity as well as the strength of blended cement mortar when used as partial cement substitution.
Chung Han Lim
doaj   +1 more source

Study of the effect of calcium nitrate, calcium formate, triethanolamine, and triisopropanolamine on compressive strength of Portland-pozzolana cement

Case Studies in Construction Materials, 2023
This study aims to assess the effect of using some chemical admixtures including Calcium nitrate tetrahydrate (CN) and Calcium formate (CF), Triethanolamine (TEA), and Triisopropanolamine (TIPA) on the early-age compressive strength of Portland cement ...
Aliakbar Derakhshani, Arezoo Ghadi, Seyed Ebrahim Vahdat   +2 more
doaj   +1 more source