Results 41 to 50 of about 97,388 (192)

Review on chloride transport in alkali-activated materials: Role of precursors, activators and admixtures [PDF]

open access: yes, 2022
The development of alkali-activated materials (AAMs) to replace ordinary Portland cement (OPC) under chloride-containing environments has been widely investigated by academia and industry for decades. Due to varied mix proportions and parameters applied,
Zhang, Zuhua   +4 more
core   +1 more source

Durability of alkali-activated materials in aggressive environments: A review on recent studies [PDF]

open access: yes, 2017
Corrosion of reinforcement and concrete deterioration induced by aggressive media could severely reduce the bearing capacity of structures. The durability of alkali-activated materials (AAMs) in aggressive environments, such as carbonation, chloride ...
Zhang, Zuhua   +7 more
core   +1 more source

How does the pore solution chemistry influence the passivation of reinforced alkali‐ and salt‐activated slag materials? [PDF]

open access: yes, 2023
Service life predictions of reinforced concrete structures are underpinned by the passivation film chemistry, structure, and thickness. In this work, we present how the formation of passive films at the steel–concrete interface of reinforced alkali- and ...
Moseler, Michael   +9 more
core   +1 more source

Alkali-activated cements for protective coating of OPC concrete [PDF]

open access: yes, 2015
Recent innovations have led to the development of alkali-activated coating materials to replace organic coating and repairing materials for protecting and strengthening existing concrete structures, particularly for those under rigorous conditions.
H. Wang, Z. Zhang, Wang, H., Zhang, Z.
core   +1 more source

Influence of different sources of coal gangue used as aluminosilicate powder on the mechanical properties and microstructure of alkali-activated cement

open access: yesMateriales de Construccion, 2019
Coal mining wastes are associated with serious environmental problems; they have potential as building materials, including alkali-activated cement.
B. J. Frasson   +2 more
doaj   +1 more source

Autoclaving of alkali-activated materials

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
Abstract Alkali-activated materials are amorphous materials that look like natural stone or a concrete structure. As in the case of concrete, on the surface of alkali-activated materials, a white coating appears in the form of efflorescence.
D. Mierzwiński, J. Walter
openaire   +2 more sources

Evaluating the performance of alkali activated concrete with fly ash, lime and GGBS [PDF]

open access: yes, 2023
Alkali Activated Concrete (AAC) is a moderately new form of concrete that has gotten a lot of interest in recent decades owing to its environmental advantages and features.
Murmu , Meena   +2 more
core   +1 more source

Effect of alkali dosage and silicate modulus on carbonation of alkali-activated slag mortars [PDF]

open access: yes, 2018
The long-term durability and their mechanisms of alkali-activated cement based materials have remained largely elusive. In this paper, carbonation of alkali-activated slag (AAS) mortars activated by NaOH and waterglass with different alkali dosages and ...
Zhang, Zuhua   +5 more
core   +1 more source

Special Issue: "Recent Developments in Geopolymers and Alkali-Activated Materials". [PDF]

open access: yesMaterials (Basel)
As efforts toward global sustainability converge with the imperative to reduce the environmental impact of construction materials, extensive research and development is underway in the field of geopolymers and alkali-activated materials (AAMs) [...
Lee S.
europepmc   +2 more sources

Introduction [to "Handbook of advances in alkali-activated concrete"] [PDF]

open access: yes, 2021
This chapter starts by reviewing crucial facts about the climate emergency, resource efficiency, and the circular economy in order to provide a context for the contribution of alkali-activated concrete just because since Humanity is living on borrowed ...
Chindaprasirt, P.   +2 more
core  

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