Results 41 to 50 of about 12,946 (261)
Acid Activated Smectite Clay as Pozzolanic Supplementary Cementitious Material
SSRN Electronic Journal, 2022 This research has investigated the structural changes and pozzolanic activity produced in acid activated smectite clay. The activation treatment used HCl at different concentrations, using different times and at a range of temperatures. X-ray diffraction, Fourier transform infrared spectroscopy and scanning electron microscopy coupled with energy ...
Ayati, B +3 more
openaire +3 more sources
Potential of Orange Peel Ash as a Cement Replacement Material [PDF]
, 2019 The potential of Orange peel ash (OPA) as a cement replacement material was investigated with focus on the effect of OPA content on the physicomechnical properties such as consistency, setting times, soundness, compressive and flexural strengths of OPA ...
Abdullahi, Basiru +2 more
core +2 more sources
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
Heliyon, 2019 This paper presents the findings of an experimental investigation on optimizing pozzolanic activity of a blend of Rice Husks (RH), Spent Bleaching Earth (SBE) and Broken Bricks (BB) to form pozzolana that would have pozzolanic activity comparable to ...
Protus Nalobile +3 more
doaj +1 more source
Treatment of end-of-life concrete in an innovative heating-air classification system for circular cement-based products [PDF]
, 2020 A stronger commitment towards Green Building and circular economy, in response to environmental concerns and economic trends, is evident in modern industrial cement and concrete production processes.
Di Maio, F. +4 more
core +2 more sources
Cost Analysis Insights for Offshore CCS Hubs: A Case Study of the Santos Basin, Brazil
Greenhouse Gases: Science and Technology, EarlyView.ABSTRACT The reuse of decommissioned offshore platforms for geological carbon storage offers a cost‐effective and technically feasible strategy to reduce greenhouse gas emissions in emerging economies. This study presents a comprehensive techno‐economic assessment of offshore carbon capture and storage (CCS) hubs in Brazil, with a focus on the Merluza ...
Norah A. Ordoñez +4 more
wiley +1 more source
Structural Concrete, EarlyView.Abstract Steam curing is commonly used to manufacture precast culverts to accelerate early strength development. This study investigates the effect of supplementary cementitious materials (SCMs) on the permeability properties of steam‐cured precast concrete culverts.
Saugat Humagain +3 more
wiley +1 more source
Case Studies in Construction MaterialsUtilizing activated sludge as a partial substitute for cement can both curb cement consumption and address sludge reuse in an economically and environmentally-friendly manner.
Youzhi Yang +5 more
doaj +1 more source
Fineness Effect on Pozzolanic Activity of Cu-Ni Slag in Cemented Tailing Backfill
Advances in Materials Science and Engineering, 2020 This paper presents the experimental results of the fineness effect on the pozzolanic activity of Cu-Ni slag in cemented tailing backfill. Cement paste and cemented tailing backfill samples that without or contain Cu-Ni slag with various grinding times ...
Wenyuan Xu +3 more
doaj +1 more source
Study of Mortars Made with Natural and Artificial Pozzolans [PDF]
, 2019 The objective of this work is to evaluate the thermal activation potential of clay soils, particularly the clay fraction of dam mud, for the production of artificial pozzolan which can be substituted to cement in concrete and mortars applications and ...
BENAZZOUK, Amar +3 more
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