What does this research mean for the field?

Alkali-activated bagasse ash-based cellular lightweight concrete utilizing a combination of fly ash and Portland cement achieves comparable engineering and thermal performance to conventional Portland cement-based concrete while reducing overall cement consumption. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To compare the performance effects of high-calcium fly ash and Portland cement on alkali-activated bagasse ash-based cellular lightweight concrete for non-load-bearing masonry units.

September 2, 2026Next MaterialsOpen Access

Comparative performance of fly ash and Portland cement in alkali-activated bagasse ash-based cellular lightweight concrete for sustainable non-load-bearing masonry units

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To compare the performance effects of high-calcium fly ash and Portland cement on alkali-activated bagasse ash-based cellular lightweight concrete for non-load-bearing masonry units.
Formulated cellular lightweight concrete mixtures replacing bagasse ash with fly ash, Portland cement, or their combinations at a target fresh density of 1000 kg/m³.
Activated the mixtures using 10 M or 15 M sodium hydroxide solutions.
Evaluated compressive strength, water absorption, drying shrinkage, thermal conductivity, and microstructure across the specimen groups.
Higher sodium hydroxide concentration (15 M versus 10 M) generally increased compressive strength and reduced water absorption.
Combinations of fly ash and Portland cement delivered the best overall performance, satisfying standard strength criteria for non-load-bearing cellular masonry units.
Optimum alkali-activated mixtures achieved thermal conductivity values between 0.307 and 0.458 W/m·K, delivering performance comparable to Portland cement-based controls with lower cement consumption.

Authors

TSTodsaporn Srikhamma PCPanitta Chalorklang DIDarrakorn IntarabutRajamangala University of Technology Phra Nakhon

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Implication

Experimental study reveals enhanced strength and low thermal conductivity in alkali-activated bagasse lightweight concrete, indicating viable low-carbon alternatives for non-load-bearing masonry.

Cite This Study

Srikhamma et al. (2026) studied this question.

synapsesocial.com/papers/6a97e249c562ede874ec6525 https://doi.org/10.1016/j.nxmate.2026.103361

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Implication

Experimental study reveals enhanced strength and low thermal conductivity in alkali-activated bagasse lightweight concrete, indicating viable low-carbon alternatives for non-load-bearing masonry.

Comparative performance of fly ash and Portland cement in alkali-activated bagasse ash-based cellular lightweight concrete for sustainable non-load-bearing masonry units

Key Points

Discussion

Implication

Cite This Study

Comparative performance of fly ash and Portland cement in alkali-activated bagasse ash-based cellular lightweight concrete for sustainable non-load-bearing masonry units

Key Points

Discussion

Implication

Cite This Study

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