Results 31 to 40 of about 97,388 (192)

A review: Alkali-activated cement and concrete production technologies available in the industry

Heliyon, 2023
A growing interest in alternative cements has emerged with the sole purpose of reducing the environmental footprint associated with cement production. One of the promising alternatives is to use non-carbonate materials such as alkali-activated materials.
Isabel Pol Segura, Navid Ranjbar, Anne Juul Damø, Lars Skaarup Jensen, Mariana Canut, Peter Arendt Jensen   +5 more
doaj   +1 more source

Reaction products, structure and properties of alkali-activated metakaolin cements incorporated with supplementary materials – a review

Journal of Materials Research and Technology, 2019
Incorporation of mineral blending and/or modifying additions which are single- or multi-component materials is one of the main trends in the development of both Portland clinker-based and non-clinker cements.
Nailia R. Rakhimova, Ravil Z. Rakhimov
doaj   +1 more source

Recent progress in understanding setting and hardening of alkali-activated slag (AAS) materials [PDF]

, 2022
Alkali-activated slag (AAS with type of slag being blast-furnace slag) binders possesses substantially different hydration mechanisms from Portland cement (PC) binders, leading to distinct setting and hardening behavior.
Zhang, Zuhua, Jiang, Dongdong, Shi, Caijun   +2 more
core   +1 more source

Advances in immobilization of radionuclide wastes by alkali activated cement and related materials [PDF]

, 2022
Nuclear power is seen a significant part of new energy industry because of the low carbon emission feature and high efficiency. Safe and reliable immobilization of radionuclide wastes from nuclear power station is important for its operation.
Zhang, Zuhua, Zhu Yingcan, Zheng, Zhao, Deng, Yulin, Shi, Caijun   +4 more
core   +1 more source

Properties of Lightweight Fiber-Reinforced Alkali-Activated Concrete [PDF]

, 2021
This chapter presents the experimental results regarding the efficiency of using acoustic panels made with fiber reinforced alkali-activated slag foam concrete containing lightweight recycled aggregates produced using an industrial side stream, Petrit-T.
Soriano, L., Tashima, M. M. [UNESP], Borrachero, M. V., Monzó, J., Payá, J.   +4 more
core   +1 more source

Instantaneous activation energy of alkali activated materials

RILEM Technical Letters, 2019
Alkali activated materials (AAM) are generally cured at high temperatures to compensate for the low reaction rate. Higher temperature accelerates the reaction of AAM as in cement-based materials and this effect is generally predicted using Arrhenius ...
Shiju Joseph, Siva Uppalapati, Ozlem Cizer   +2 more
doaj   +1 more source

Self-sensing properties of alkali-activated materials prepared with different precursors [PDF]

, 2023
The development of smart concretes with self-sensing properties has gained increasing attention recently. In this study, the effect of different precursors, including blast furnace slag, fly ash, silica fume, and metakaolin, on the electrical ...
Liu, Weisen, Li, Fangjie, Ma, Yuwei, Ouyang, Xiaowei, Xie, Huajie, Fu, Jiyang, Wang, Hao   +6 more
core   +1 more source

Reuse of aluminosilicate industrial waste materials in the production of alkali-activated concrete binders [PDF]

, 2014
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, mining, ceramics, construction and
Tashima, M. M. [UNESP], Borrachero, M. V., Monzó, J., Payá, J.   +3 more
core   +1 more source

Influence of microwaves in the early stage of alkali activation on the mechanical strength of alkali-activated materials

Ceramics International, 2023
Abstract.
Horvat, Barbara, Pavlin, Majda, Ducman, Vilma   +2 more
openaire   +2 more sources

Compressive strength variation of alkali activated fly ash/slag concrete with different NaOH concentrations and sodium silicate to sodium hydroxide ratios

Journal of Sustainable Construction Materials and Technologies, 2019
Waste disposal becomes a crucial issue for both the environment and the economy. One of the solutions for waste disposal is to utilize waste materials in concrete production.
Anıl Ni̇ş
doaj   +1 more source