Results 51 to 60 of about 1,460 (211)

Development of Ambient‐Cured Geopolymer Concrete: Investigating Bottom Ash as a Sustainable Alternative to Natural River Sand

Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
Portland cement production is a major contributor to global CO2 emissions, and the scarcity of natural river sand limits conventional concrete production. Despite increasing interest in geopolymer concrete (GPC), studies on sustainable, low‐temperature cured GPC using industrial by‐products as fine aggregate replacements are limited.
Lemma Beressa Gudeta, Zerihun Mamo Asamenew, Zewdu Sileshi Akalu, Mohammad Rezwan Habib   +3 more
wiley   +1 more source

HIGH DENSITY POLYETHYLENE FILLED WITH POZZOLANA AS A POLYMER RADIATION PROTECTION MATERIAL [PDF]

, 2023
The radiation-protective properties of polymer composite materials based on high-density polyethylene with a filler made of natural pozzolana, as well as a binding agent in the form of vinyltrimethoxysilane were studied in this ...
Аладаилах, М. В., Гречишкин, Р. О., Grechishkin, R. O., Aladailah, M. W., Tashlykov, O. L., Ташлыков, О. Л., Самбурских, Д. C., Samburskikh, D. S.   +7 more
core  

Combined Effect of Natural Pozzolana and Steel Fibre on the Mechanical Properties of Normal Concrete Subjected to a High Temperature

Slovak Journal of Civil Engineering
The objective of this work is to study the effects of high temperatures on the compressive strength, flexural tensile strength, and toughness indices of ordinary concrete reinforced with 0.5% steel fibre.
Boulakoud Bilel
doaj   +1 more source

A Review on Degradation Improvement of Sisal Fiber by Alkali and Pozzolana for Cement Composite Materials

Journal of Natural Fibers
Sisal fiber employment in concrete improves its post-crack strength, but sisal fiber degrades due to moisture and cement mineralization. Many researchers used alkaline and pozzolanic techniques to treat sisal fiber in cement composite materials. However,
Tsion Amsalu Fode, Yusufu Abeid Chande Jande, Thomas Kivevele, Nima Rahbar   +3 more
doaj   +1 more source

The influence of natural pozzolana mineralogical composition in the properties of blended cement

Materiales de Construccion, 2002
The pozzolana activity is the main property of the active additions but, in order to select them, we have to consider - between other factors- its mineralogical composition with a great influence, not only in the active component, but also in other ...
M. Gener Rizo, J. M. Alonso Lavernia
doaj   +1 more source

Systematic Review of the Improvement of the Mechanical Properties of Concrete With Agave Fibers and Biochar

Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
The construction sector faces the urgent challenge of reducing the environmental impact associated with cement production. In response, biodegradable materials such as agave fibers and biochar have attracted growing interest as sustainable alternatives for improving concrete performance.
Yazmin O. Linares González, Gustavo Adolfo Alonso Silverio, Ricardo Salazar, Gerardo Altamirano de la Cruz, Sulpicio Sánchez Tizapa, Mohammad Rezwan Habib   +5 more
wiley   +1 more source

Mechanical and Physical Performance of Mortars Incorporating Crushed Hazelnut Shells as Partial Fine Aggregate Replacement

Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
This study investigates the mechanical and physical properties of mortars incorporating crushed hazelnut shell (HS) as a partial replacement for fine aggregates. Mortar mixtures were prepared with varying water‐to‐cement (w/c) ratios ranging from 0.35 to 0.50 and HS dosages of 2.5%, 5%, and 7.5% by weight, along with reference mixtures without HS.
Sergio J. Yanez, Leonardo Brescia-Norambuena, Daniela Gutiérrez Canales, Siva Avudaiappan, Juan Carlos Pina, Susana García Vera, Tamara Erazo Ibarra, Mohammad Rezwan Habib   +7 more
wiley   +1 more source

Strength, Sulfate Resistance, and Microstructural Characteristics of Concrete With Partial Cement Replacement Using Eggshell Powder and Wheat Straw Ash

Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
This study explores the partial replacement of ordinary Portland cement (OPC) with a composite of eggshell powder (ESP) and wheat straw ash (WSA) in C‐25 concrete, focusing on mechanical performance and durability. Cement was replaced with varying proportions of ESP and WSA, and the concrete mix was prepared following ACI guidelines.
Abdulsemad Jemal Jema, Fikreyesus Demeke Cherkos, Mohammad Rezwan Habib   +2 more
wiley   +1 more source

EFFECT OF SUGAR CANE BAGASSE ASH ON THE PHYSICAL PROPERTIES OF SUBGRADE LAYER

Journal of Engineering and Sustainable Development, 2017
In the pavement, the subgrade layer must have enough strength in order to withstand and support the other layers. The availability of waste materials from industry and agriculture and the need to employ the use of this material in the field of roadworks
Ghadah Ghassan Masued
doaj  

Enhanced Utilization of Coal Ash in Construction: Physicochemical Properties and Compressive Strength of Blended Cement and Geopolymer Mortar

Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
The properties of fly and bottom ashes produced by Morupule power stations in Botswana are analysed for their pozzolanicity. Furthermore, the influence of physical, chemical and microstructural properties of the ashes on the performance of compressive strength of fly ash–based blended cement and geopolymer mortar was evaluated.
Damilola O. Oyejobi, Ali A. Firoozi, Adekunle P. Adewuyi, Njideka M. Aguome, Rajashik Paul   +4 more
wiley   +1 more source