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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 ...
Spent FCC catalyst for preparing alkali-activated binders: An opportunity for a high-degree valorizatio
(2014-01-01)
Spent FCC catalyst is a waste from the petrochemical industry which has excellent pozzolanic properties, containing more than 90% silica and alumina. Its similarity to metakaolin creates interesting prospects for its use ...
Compressive Strength and Microstructure of Alkali-Activated Blast Furnace Slag/Sewage Sludge Ash (GGBS/SSA) Blends Cured at Room Temperature
(2017-07-01)
In the present work, ground granulated blast furnace slag (GGBS) and sewage sludge ash (SSA) blends were assessed for the production of alkali-activated pastes and mortars. Percentages of SSA to substitute GGBS ranged from ...
A binder from alkali activation of FCC waste: Use in roof tiles fabrication
(2016-01-01)
Nowadays, scientific community is looking for alternatives to reduce the problem of CO2 emissions, making more sustainable binders and reusing wastes from other industries. In this line, the technology of geopolymers was ...
New use of sugar cane straw ash in alkali-activated materials: A silica source for the preparation of the alkaline activator
(2018-05-20)
Alkali silicates, expensive and highly pollutant chemical reagents, are required to produce the alkaline activator for high-performance alkali-activated materials. This study presents a new silica source for producing the ...
Reuse of aluminosilicate industrial waste materials in the production of alkali-activated concrete binders
(2014-11-03)
The use of alternative inorganic waste materials, other than fly ashes or blast furnace slag, in the production of alkali-activated binders is reported. Residues from industrial activities related to energy, metallurgy, ...
Influence of calcium additions on the compressive strength and microstructure of alkali-activated ceramic sanitary-ware
(2018-07-01)
The ceramic sanitary-ware market generates large amounts of waste, both during the production process and due to construction and demolition practices. In this paper, the effect of different amounts and calcium sources ...
Use of ceramic sanitaryware as an alternative for the development of new sustainable binders
(2016-01-01)
Large amounts of ceramic sanitary-ware waste are generated in both the production process and construction and demolition practices. This waste contains amorphous phases that may react with the Portlandite that originates ...
Drying and autogenous shrinkage of pastes and mortars with activated slag cement
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
Activated slag cement (ASC) shows significantly higher shrinkage than ordinary Portland cement agglomerates. Cracking generated by shrinkage is one of the most critical drawbacks for broader applications of this promising ...