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Showing 1 to 7 of 7 for “"concrete rheology"”.
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Concrete Rheology
The rheology of concrete is investigated in this work. The method involves using a partial experimental matrix that considers the effects of sand content, water/cement ratio, coarse aggregate type, fly ash content and the addition of a superplasticizer on the rheological parameters of yield stress, …
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Describing the rheology of vibrated, no-slump concrete for application in 3D-printing construction
Using an automated process like 3D printing in concrete construction could improve safety and performance while decreasing environmental impact and cost. But 3D-printed concrete construction still needs considerable development before it will be reliable. This research addresses the challenge of …
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Durability of non air entrained concrete
Frost-þíðu skemmdir í steinsteypu eru að öllum líkindum sá þáttur sem hefur hvað mest áhrif á endingu bygginga á Íslandi. Utanhússteypa á Íslandi þarf að standast kröfur um að flögnun sé ekki meiri en 1 kg/m2 samkvæmt stöðluðu sænsku frostþols prófi, SS 137244. Til að uppfylla þessar kröfur er …
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Aggregate gradation impacts on fresh properties of 3D concrete printing mixtures
3D printed concrete (3DPC) offers potential benefits in construction efficiency, labor reduction, and material optimization, but its widespread adoption is limited by reliance on cement-rich mortar mixes and the lack of standardized mixture design frameworks. Existing literature on 3DPC identifies …
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Modelling Tremie Concrete Placement in Deep Foundations
… typically constructed using the Tremie Method of concrete emplacement. A pipe and hopper system is used to fill an excavation from the base up with a specialised, highly workable concrete called Tremie Concrete. In this thesis, numerical modelling and experimental analysis are employed to define …
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Development of foamed concrete : enabling and supporting design
Foamed concrete has considerable potential as a material for use in the construction industry. However, although some researches have been conducted on the characteristics of foamed concrete, thus far, knowledge on the behaviour of foamed concrete has been limited. Hence, predictions of the …
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Digital rheology of fresh-state concrete
… decrease the carbon emissions associated with concrete use. Inadequate characterisation of fresh-state concrete complicates distinguishing between mixes and identifying performance issues before remedial actions are necessary. This hinders effective quality control, decarbonisation efforts, and …