Browsing Journals and Magazines by Author "Nanayakkara, A"

Now showing items 1-7 of 7

Concrete cold joint formation in hot weather conditions

Illangakoon, GB; Asamoto, S; Nanayakkara, A; Trong, LN [Article-Full-text]

The performance of a concrete structure can be greatly affected by the presence of a cold joint: it causes deterioration of steel reinforcement in concrete, strength reduction, and destruction of the aesthetic appearance ...
Effect of carbonate ions on delayed ettringite formation

Asamoto, S; Murano, K; Kurashige, I; Nanayakkara, A [Article-Full-text]

The effect of carbonate ions gradually dissolved from limestone powder on delayed ettringite formation (DEF) and the inhibition of DEF by fly ash were examined. To accelerate DEF expansion, 3% SO3 by cement weight was ...
Effects of blending manufactured sand and offshore sand on rheological, mechanical and durability characterization of lime-cement masonry mortar

Arulmoly, B; Konthesingha, C; Nanayakkara, A [Article-Full-text]

The environment and ecological systems are suspected of serious drawbacks as a result of the over-extraction of river sand for construction activities. An attempt was made in this research on completely replacing river sand ...
Effects of microfine aggregate in manufactured sand on bleeding and plastic shrinkage cracking of concrete

Arulmoly, B; Konthesingha, C; Nanayakkara, A [Article-Full-text]

Construction industries have started to utilize manufactured sand (MS) as an effective alternative for river sand in concrete. High-grade parent rocks are crushed to obtain MS, which also produces a considerable amount ...
Performance evaluation of cement mortar produced with manufactured sand and offshore sand as alternatives for river sand

Arulmoly, B; Konthesingha, C; Nanayakkara, A [Article-Full-text]

This study investigates the fresh and hardened state properties of cement-sand mortar comprising manufactured sand and offshore sand as alternatives for a complete replacement of river sand. Two types of manufactured ...
Plastic settlement and hardened state assessments of manufactured sand made concrete for varying microfine levels

Arulmoly, B; Konthesingha, C; Nanayakkara, A [Article-Full-text]

Manufactured sand (MS) has been started utilizing as an alternative in constructions due to the escalated demand for river sand (RS). The microfine aggregate (MFA) is a salient constituent in manufactured sand, which is a ...
Web crippling behaviour of cold-formed carbon steel, stainless steel, and aluminium lipped channel sections with web openings

Weerasinghe, H; Konthesingha, C; Nanayakkara, A; Poologanathan, K; Perampalam, G; Kanthasamy, E [Article-Abstract]

This paper reviews the research advancements and design practices related to the structural web crippling response of lipped Cold-Formed (CF) carbon steel, stainless steel, and aluminium channels with web perforations. The ...

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Browsing Journals and Magazines by Author "Nanayakkara, A"

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