Results 1 to 10 of about 4,199 (222)

Experimental Study of The Addition of Palm Fiber (Arenga Pinnata) as Fiber Against The Compressive Strength of Pozzolan Bricks

open access: yesJurnal Teknik Sipil dan Perencanaan, 2022
. Brick is a building material widely used as a construction material for walls and fences, one of which uses Pozzolan brick. Pozzolan brick is made from Trass, lime, or cement.
Mahdika Putra Nanda
doaj   +3 more sources

Conception of eco-friendly cement based on natural pozzolan to improve rheological behavior of concrete

open access: yesJournal of Building Materials and Structures, 2020
The pozzolan of Beni- Saf region (North-West Algeria) is a natural material of volcanic origin with an ability to react with lime in the presence of water and to form compounds with binding properties.
Sabria Malika Mansour, Youcef Ghernouti
doaj   +2 more sources

Physical properties and reactivity of pozzolans, and their influence on the properties of lime–pozzolan pastes [PDF]

open access: yesMaterials and Structures/Materiaux Et Constructions, 2010
This paper studies how pozzolan properties including particle size, specific surface, chemical and mineral composition, amorphousness and water demand, affect their reactivity as well as the strength of lime–pozzolan pastes. Reactivity was evaluated with chemical, mechanical and mineralogical methods.
S Pavia, Pavia S
exaly   +4 more sources

Evaluation the pozzolanic reactivity of sonochemically fabricated nano natural pozzolan

open access: yesUltrasonics Sonochemistry, 2012
Natural pozzolans are appropriate supplementary cementitious materials in cement and concrete industry. A simple sonochemical method was developed to synthesize nanostructures of natural pozzolan. Chemical composition, crystallinity, morphology and reactivity of the natural pozzolan samples were compared before and after the sonochemical process, by ...
Azadeh Askarinejad   +1 more
exaly   +3 more sources

Improvement of Pozzolanic Properties of Oil Palm Boiler Ash Through Heat Treatment [PDF]

open access: yesE3S Web of Conferences, 2023
This paper presents the improvement of pozzolanic properties of oil palm boiler ash (OPBA) through heat treatment. The OPBA was obtained from oil palm mill in Pahang, Malaysia.
Liew Yu Xuan   +4 more
doaj   +1 more source

Experimental study of MICP-treated sand enhanced by pozzolan

open access: yesRock and Soil Mechanics, 2022
In order to improve the reinforcement effect of microbially induced calcium carbonate precipitation (MICP) technology on sand, the test of MICP-treated sand reinforced by pozzolan was designed and carried out considering the porous structure and activity
XIONG Yu   +4 more
doaj   +1 more source

Effect of silica fume inclusion on the strength, shrinkage and durability characteristics of natural pozzolan-based cement concrete

open access: yesCase Studies in Construction Materials, 2022
In the present work, effect of inclusion of silica fume on the performance of natural pozzolan-based cement concrete was investigated. Natural pozzolan, obtained from volcanic rocks, was used as the main supplementary cementitious material to partially ...
Shamsad Ahmad   +3 more
doaj   +1 more source

Evaluation of Pozzolanic Reactivity of Artificial Pozzolans [PDF]

open access: yesMaterials Science Forum, 2012
Pozzolanicity is a very interesting issue regarding building materials, as a way to enhance mortars and concrete durability. This property results from the reaction between calcium hydroxide and silica and alumina based materials. Different types of natural and artificial pozzolans show pozzolanic activities that differ depending on the materials ...
Pontes, J.   +2 more
openaire   +3 more sources

Study on the effect of Shahin-Dezh green Tuff on the mechanical characteristics of roller compact concrete [PDF]

open access: yesJournal of Structural and Construction Engineering, 2016
Due to the growing popularity of concrete structure and increasing use of them, especially Roller compacted concrete, applying Pozzolan and replacing cement with Pozzolan is very important.
Sadegh Dardaei   +2 more
doaj   +1 more source

Low-cost Packing Materials in an Aerated Biofilter for Lagoon Effluent Treatment [PDF]

open access: yesKemija u Industriji, 2022
As part of a comprehensive evaluation of post-treatment techniques for the removal of chemical and microbiological pollutants from lagoon effluents, an aerated biofilter was designed.
Malika Khelladi   +5 more
doaj   +1 more source

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