Results 91 to 100 of about 4,574,504 (206)

The effect of pozzolan addition on the physical and mechanical properties of lime mortar

open access: yesE3S Web of Conferences, 2018
Hydrated lime, due to its life cycle (return to the natural form as a result of binding and hardening) shows a positive ecological aspect. The binder is often used in building materials based on plant components due to the high alkaline reaction and low ...
Brzyski Przemysław
doaj   +1 more source

Calorimetric study of geopolymer binders based on natural pozzolan [PDF]

open access: yes, 2017
This paper investigates the kinetics of geopolymerisation in an inorganic polymeric binder based on a natural pozzolan. The heat released by the exothermic geopolymerisation reaction process is monitored under isothermal temperature conditions ...
Najafi Kani, E.   +2 more
core   +1 more source

A Critical Review and Research Framework for Stabilization of Collapsible Gypseous Soils

open access: yesAdvances in Civil Engineering, Volume 2026, Issue 1, 2026.
Gypseous collapsible soils fail through two coupled processes: wetting‐induced structural collapse and progressive dissolution of gypsum interparticle cement. The reviewed experimental datasets report untreated collapse potential (CP) values of 1.9%–22.3%.
Ameen A. AlShaba, Shikha Binwal
wiley   +1 more source

The Influence of the Alkaline Activator on the Life Cycle Assessment of Alkaline Activated Natural Pozzolan Geopolymers Concrete

open access: yes, 2020
This paper studies the effectiveness of replacing cement in concrete with natural pozzolan, originated from Saudi Arabia, on the reduction of the harmful gasses, carbon dioxide equivalent gases, during the production process of the concrete. Life cycle
Kamil, Marwah
core   +1 more source

Sustainable tuning of pozzolan microfiltration membranes using walnut shell additives: A response surface methodology investigation

open access: yesOpen Ceramics
This study investigates the fabrication and characterization of flat ceramic membranes prepared by dry pressing using natural pozzolans and walnut shell powder as a bio-additive. Raw materials were characterized by XRF, XRD, FTIR, and TGA/DSC. A response
Mounia Baidou   +6 more
doaj   +1 more source

Pozzolanic activity of clinoptilolite: A comparative study with silica fume, fly ash and a non-zeolitic natural pozzolan

open access: yesCement and Concrete Research, 2010
Abstract Pozzolanic activity of clinoptilolite, the most common natural zeolite mineral, was studied in comparison to silica fume, fly ash and a non-zeolitic natural pozzolan. Chemical, mineralogical and physical characterizations of the materials were considered in comparative evaluations.
Uzal, B.   +4 more
openaire   +3 more sources

A Study of the Hydration of Lime-Pozzolan Binders

open access: yes, 1998
DTA/TG and TG/DTG thermal studies and XRD investigations were carried out on pastes of lime-pozzolan binders to examine the relative hydration process.
F. Tasselli, P. Ubbríaco
core   +2 more sources

Sustainability evaluation and life cycle assessment of concretes including pozzolanic by-products and alkali-activated binders

open access: yesResults in Engineering
The construction industry's top priorities for achieving a sustainable future include minimizing the use of non-renewable resources, managing waste generation, and reducing related gas emissions.
Ayah A. Alkhawaldeh   +4 more
doaj   +1 more source

CHARACTERIZATION AND EVALUATION OF NATURAL ZEOLITE AS A POZZOLANIC MATERIAL [PDF]

open access: yesAl-Azhar Bulletin of Science, 2018
This paper presents details about mineralogical and chemical composition of natural zeolite (NZ) from Harrat Shama for using it as a pozzolanic material. The structural properties and mineralogical composition of NZ were determined using XRF, XRD, FTIR, DSC, SEM-EDX as well as study surface texture and cation exchange capacity. The geopolymer paste was
openaire   +1 more source

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