Results 41 to 50 of about 18,605 (255)
Silicon, 2021 Pozzolan-based eco-adsorbents were synthesized by geopolymerization with addition of hydrogen peroxide (H2O2) with mass ratios 0% (GP0) and 1% (GP1) and the products used to sorb cationic methylene blue (MB) dye from water.
Dzoujo T. Hermann +7 more
semanticscholar +1 more source
Present Environment and Sustainable Development, 2018 Given the increasing exploitation of clay in Morocco for ceramic industry and for the purpose of the benefit reuse of this resource, a study is conducted in order to carry out the identification and characterization of Miocene clay after doping with ...
Mesrar Laila +3 more
doaj +1 more source
Heats of hydration and pozzolan content of portland-pozzolan cements
Journal of Research of the National Bureau of Standards, 1952 Methods are described for the measurement of the approximate heat of solution in acid of portland-cement^-pozzolan mixtures. Examples are given of the estimation of the heat of hydration of portland-pozz olan cements. Determinations of the amount of material undissolved in the calorimeter, as well as the heats of solution, were applied to the problem ...
E.S. Newman, L.S. Wells
openaire +2 more sources
Effects of Using Pozzolan and Portland Cement in the Treatment of Dispersive Clay
The Scientific World Journal, 2013 Use of dispersive clay as construction material requires treatment such as by chemical addition. Treatments to dispersive clay using pozzolan and Portland cement, singly and simultaneously, were carried out in this study.
A. H. Vakili, M. R. Selamat, H. Moayedi
doaj +1 more source
Flexural Capacity of Fire-Affected Concrete Members with Recycled Glass Aggregate and Glass Pozzolan
Fire, 2022 Adding recycled glass components to concrete mixes is a novel and sustainable option. Prior studies have recommended replacement ratios of 30% glass aggregates and 20% ground glass pozzolan as optimum substitutions in concrete mixes.
Enrique Gonzalez Tapia, Nur Yazdani
doaj +1 more source
Some considerations about the use of lime-cement mortars for building conservation purposes in Portugal : a reprehensible option or a lesser evil? [PDF]
, 2012 Some investigations about conservation actions in historical buildings points out that lime–cement mortars should be avoided and lime–pozzolan mortars should be use instead.
Faria, Joana +2 more
core +1 more source
Improvement of geotechnical properties of silty sand soils using natural pozzolan and lime
International Journal of Geo-Engineering, 2018 In this study the effect of different amounts of lime and natural pozzolan on geotechnical properties of a silty sand soil has been investigated. To do this, 20 treatments were prepared with adding five lime levels of 0, 1, 3, 5 and 7% (by weight) and ...
Nader Abbasi, Masoud Mahdieh
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
Sewage sludge ash: A comparative evaluation with fly ash for potential use as lime-pozzolan binders
Construction and Building Materials, 2020 The disposal of sewage sludge ash (SSA) has become an environmental issue due to the limited available landfill space. This study aims at applying the finely-ground sewage sludge ash (FSSA) with quicklime and hydrated lime to develop a new type of lime ...
Yi-fan Zhou +4 more
semanticscholar +1 more source
Journal of advanced concrete technology, 2021 The decarbonization of concrete structures sector is a priority due to the world climate. Since Portland cement is re-sponsible for approximately 7% of the anthropogenic emissions worldwide, it is decisive to partially replace it by products with lower ...
Keila Robalo +3 more
semanticscholar +1 more source