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The role of dissolved rice husk ash in the development of binary blast furnace slag-sewage sludge ash alkali-activated mortars
(2022-07-15)
This study evaluated the compressive strength performance and microstructure of binary blast furnace slag-sewage sludge ash (BFS-SSA) alkali-activated mortars, in which rice husk ash (RHA) was dissolved in NaOH solution ...
Pore structure description of mortars containing ground granulated blast-furnace slag by mercury intrusion porosimetry and dynamic vapour sorption
(Elsevier, 2017-08)
The description of the pore structure is a key aspect when studying the durability of cement-based materials. Many techniques have been developed over the years in order to describe the actual complex microstructure of ...
Contribuição ao estudo de cimentos supersulfatados: formulação e mecanismos de hidratação
(Universidade Tecnológica Federal do ParanáPato BrancoPrograma de Pós-Graduação em Tecnologia de Processos Químicos e Bioquímicos, 2015-03-31)
In recent years, considerable attention has been given to the development of special cements that can reduce CO2 emissions and energy and the consumption of limestone. Supersulfated cement are mainly composed of blast ...
Mechanical and durability properties of alkali-activated mortar based on sugarcane bagasse ash and blast furnace slag
(2015-02-24)
Sugarcane bagasse is an agricultural waste which can be transformed, for cementing purposes, into an interesting material by combustion. Specifically, the ash (SBA) obtained by auto-combustion was used for preparing ...
Optimum Use of Sugar Cane Straw Ash in Alkali-Activated Binders Based on Blast Furnace Slag
(Asce-amer Soc Civil Engineers, 2018-06-01)
Alkali-activated binders (AABs) are a material obtained from the combination of a solid precursor and an alkaline activating solution. In this study, one solid precursor used was blast-furnace slag (BFS) and the other was ...
Design and properties of 100% waste-based ternary alkali-activated mortars: Blast furnace slag, olive-stone biomass ash and rice husk ash
(2020-01-10)
Alkali-activated cements (AACs) technology is being widely investigated as a replacement for ordinary Portland cement (OPC) for environmental benefits. Blast furnace slag (BFS) is one of the most well known precursors used ...
Penetração de cloretos em concretos compostos com cimento Portland branco e escória de alto forno, ativados quimicamente
(Universidade Federal de Santa MariaBREngenharia CivilUFSMPrograma de Pós-Graduação em Engenharia Civil, 2008-02-12)
The consumption of white Portland cement (WPC), in structural concretes, has been growing lately. Thus, targeting diffuse its use, and confirm its quality and durability as structural cement, this work has the aimed to ...
Almond-shell biomass ash (ABA): A greener alternative to the use of commercial alkaline reagents in alkali-activated cement
(2021-07-05)
The use of almond-shell biomass ash (ABA) as an alternative component to the commercial reagents used in the activation of blast furnace slag (BFS) systems is investigated. The presence in its chemical composition of a ...