Comprehensive Review of Direct and Indirect Pozzolanic Reactivity Testing Methods
Buildings, 2023 The production of portland cement is among the major contributors to greenhouse gas emissions that adversely affect the environment. Identifying sustainable materials to partially replace portland cement in concrete, such as pozzolanic materials, is ...
Habib Tabatabai +2 more
exaly +3 more sources
Characterization and Reactivity of Natural Pozzolans from Guatemala
Applied Sciences, 2022 The possibility of using pozzolanic materials as a partial substitute for Portland cement (PC) to develop mortars and concretes promotes environmental and economic benefits.
Oscar M. Sierra +5 more
doaj +3 more sources
Effect of Fineness of Basaltic Volcanic Ash on Pozzolanic Reactivity, ASR Expansion and Drying Shrinkage of Blended Cement Mortars [PDF]
Materials, 2019 Muhammad Nasir Amin +2 more
exaly +2 more sources
Pozzolanic reactivity of kaolin clays, a review
Revista Ingeniería de Construcción, 2020 Pozzolans have demonstrated to be highly efficient mineral additions in the concrete industry, because they reduce the environmental impact generated by the cement manufacture, improve the physical, chemical and mechanical properties of blends, and ...
Kaolin clays, J. Tobón, J. Ramírez
doaj +10 more sources
Feasibility of using pozzolanicity tests to assess reactivity of wood biomass fly ashes
Građevinar, 2021 Pozzolanic activity of materials can initially be assumed from the quantity of the pozzolanic oxides SiO2, Al2O3 and Fe2O3. Some of the methods for assessing pozzolanic reactivity of materials include measurement of CaO consumption (Frattini test ...
Karmen Kostanić Jurić +3 more
doaj +1 more source
ASM Science Journal, 2022 The effects of calcination on spent bleaching earth ash (SBEA) were investigated in terms of its contribution to pozzolanic reactivity as well as the strength of blended cement mortar when used as partial cement substitution.
Chung Han Lim
doaj +1 more source
State-of-the-art-review on rice husk ash: A supplementary cementitious material in concrete
Journal of King Saud University: Engineering Sciences, 2021 Rice husk ash (RHA) is a good supplementary cementitious material for concrete production, as it requires low energy and emits negligible greenhouse gas during processing and service life as well as it shows high pozzolanic reactivity.
Ayesha Siddika +3 more
doaj +1 more source
Study of chemical and thermal activations of zeolite-lime blend
Cerâmica, 2021 The advantages of using zeolites are lower costs and better durability, but it requires longer setting time and slower strength development. Chemical and thermal methods have been developed to overcome these disadvantages and to enhance the reactivity of
M. Meziani +3 more
doaj +1 more source
Investigation on the feasibility of resource utilizing drinking water treatment sludge as a pozzolan to prepare cement-based materials [PDF]
E3S Web of Conferences, 2021 The characteristics of four kinds of sludge obtained from different drinking water treatment plants in Australia and China were contrastively analyzed in this study using x-ray fluorescence, scanning electron microscopy, and x-ray diffraction.
Jia Qiong, Lu Jinsuo, Yang Jing
doaj +1 more source
Pozzolanic Reactivity of Silica Fume and Ground Rice Husk Ash as Reactive Silica in a Cementitious System: A Comparative Study [PDF]
Materials, 2016 Wang Penggang, Feng Xing, Weiting Xu
exaly +2 more sources