Materials for production of high and ultra-high performance concrete: Review and perspective of possible novel materials

MT Marvila, ARG de Azevedo, PR de Matos… - Materials, 2021 - mdpi.com
This review article proposes the identification and basic concepts of materials that might be
used for the production of high-performance concrete (HPC) and ultra-high-performance …

[HTML][HTML] Insights into alkali and acid-activated volcanic ash-based materials: A review

JNY Djobo, S Tome - Cement and Concrete Composites, 2024 - Elsevier
This review provides a comprehensive study of the fundamentals of the alkaline and acid
activation of volcanic ashes (VA), for mainstreaming their use as a conventional feedstock …

New insights into the early-age reaction kinetics of metakaolin geopolymer by 1H low-field NMR and isothermal calorimetry

G Liang, W Yao, A She - Cement and Concrete Composites, 2023 - Elsevier
Early-age reaction kinetics of geopolymers is one of the challenging issues associated to
their mechanical performances and durability. In this work, the early-age reaction of …

Effect of silica fume on rheology of slag-fly ash-silica fume-based geopolymer pastes with different activators

Y Liu, C Lu, X Hu, C Shi - Cement and Concrete Research, 2023 - Elsevier
This study examined the effect of silica fume contents on the rheological behavior of slag-fly
ash-silica fume-based geopolymer pastes by packing density measurement, low-field NMR …

Effect of ground concrete waste as green binder on the micro-macro properties of eco-friendly metakaolin-based geopolymer mortar

M Liu, R Hu, Y Zhang, C Wang, Z Ma - Journal of Building Engineering, 2023 - Elsevier
Upcycling of ground concrete waste powder as green binder is an effective and high-value
approach to reducing concrete waste. This study utilized ground concrete waste powder …

[HTML][HTML] Study of acidic degradation of alkali-activated materials using synthetic C-(N)-ASH and NASH gels

Y Wang, Y Cao, Z Zhang, J Huang, P Zhang… - Composites Part B …, 2022 - Elsevier
Alkali-activated materials (AAMs) are usually recognized having better acid resistance
compared to ordinary Portland cement (OPC), however, the detailed mechanism has not …

Intrinsic sulfuric acid resistance of C-(N)-ASH and NASH gels produced by alkali-activation of synthetic calcium aluminosilicate precursors

Y Wang, Y Cao, Z Zhang, P Zhang, Y Ma… - Cement and Concrete …, 2023 - Elsevier
This study investigates the decomposition of alkali-activated materials (AAMs) in sulfuric
acid solution. Four sodium-containing calcium aluminium-substituted silicate hydrate (C-(N) …

Efflorescence mitigation in construction and demolition waste (CDW) based geopolymer

J Tan, Ö Cizer, B Vandevyvere, J De Vlieger… - Journal of Building …, 2022 - Elsevier
Using construction and demolition waste (CDW) as a raw material in geopolymer synthesis
is gaining a growing interest owing to the dwindling availability of traditional aluminosilicate …

Review on the impact of metakaolin-based geopolymer's reaction chemistry, nanostructure and factors on its properties

T Jiang, Z Liu, X Tian, J Wu, L Wang - Construction and Building Materials, 2024 - Elsevier
The low carbon footprint and superior properties of geopolymer make it a potentially suitable
alternative to ordinary Portland cement, which has been one of the dominating research …

Metakaolin based geopolymer mortar as concrete repairs: Bond strength and degradation when subjected to aggressive environments

J Tan, H Dan, Z Ma - Ceramics International, 2022 - Elsevier
By harnessing the benefits of lowering cost and reducing CO 2 emission, employing
geopolymer as the repair materials have been gaining interest. This article investigated the …