Results 31 to 40 of about 485 (209)
Ground waste ceramic brick effect at different times on mortar
Journal of Materials Research and Technology, 2023 The work aims to observe the effect of waste ceramic brick (WCB), ground in two times, 60 and 120 min for use in mortar. The crystalline phases presented in clays of the north of Rio de Janeiro have already been identified, indicating that after firing ...
Ana Luiza Campinho Paes +5 more
doaj +1 more source
Tratamentos térmico e químico para remoção de óxidos alcalinos de cinzas de capim elefante
Química Nova, 2014 Elephant grass ash (EGA) was produced at 700 °C, with two different treatments: hot water (EGAhw) or acid solution (EGAas). The efficiency of the treatments at removing the potassium oxide was evaluated with the aim of using the EGA as a pozzolanic ...
Erika Y. Nakanishi +5 more
doaj +1 more source
Rice Husk Ash Pozzolanicity Assessment by Resistivity Method [PDF]
, 2022 Assessment of pozzolanic reactivity commonly based on direct and indirect method which mostly used electrical conductivity method. However these methods limited by long duration requirement or need to be done in the laboratory.
Hadipramana, Josef +2 more
core +1 more source
Production of a highly pozzolanic sugarcane bagasse ash via densimetric fractionation and ultrafine grinding [PDF]
, 2022 Sugarcane bagasse ash is a by-product produced by the energy cogeneration from biomass burning. Different processes can be applied to this material to adapt its chemical and physical characteristics to its use as pozzolan.
Guilherme Chagas Cordeiro (10410623) +2 more
core +1 more source
Materiales de Construccion, 2006 The world-wide cement industry is seeking experimental avenues that will lead to cement production that is less energy-intensive, less damaging to the surrounding environment and less prolific in GHG emissions.
F. Puertas +5 more
doaj +1 more source
The effect of nano SiO2 and spent fluid catalytic cracking catalyst on cement hydration and physical mechanical properties [PDF]
, 2021 This paper describes research on the synergistic effect of nano–SiO2 (NS) and spent fluid catalytic cracking catalyst (FCCCw) in cement pastes’ pozzolanicity.
Malaiškienė, Jurgita +4 more
core +1 more source
Scientia Agricola, 2008 The sustainability of intensive swine production demands alternative destinations for the generated residues. Ashes from swine rice husk-based deep bedding were tested as a mineral addition for cement mortars.
Melissa Selaysim Di Campos +2 more
doaj +1 more source
Feasibility of sludge generated in water-based paint industries as cement replacement material
Case Studies in Construction Materials, 2022 An estimated 2100 tonnes of solid sludge is generated per annum from the water-based paint industries of Bangladesh. This paint sludge (PS) is usually incinerated, consuming energy and generating greenhouse gases and other pollutants.
Syed Ishtiaq Ahmad +2 more
doaj +1 more source
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 +2 more
openaire +2 more sources
Physical properties and reactivity of pozzolans, and their influence on the properties of lime–pozzolan pastes [PDF]
Materials and Structures, 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.
WALKER, ROSANNE, PAVIA, SARA
openaire +3 more sources