Results 1 to 10 of about 1,393 (166)
Physical properties and reactivity of pozzolans, and their influence on the properties of lime–pozzolan pastes [PDF]
Materials 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
Ultrasonics 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]
E3S 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
Rock 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
Jurnal 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 +1 more source
Case 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]
Materials 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]
Journal 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]
Kemija 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
Journal 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 +1 more source