Alireza Kashani
University of New South Wales
DurabilitySilica fumeMortarComposite materialShrinkageMaterials scienceRheologyCementitiousPortland cementGeopolymerCompressive strengthGround granulated blast-furnace slagComputer scienceChemical engineeringCementBiocharPorosityFly ashMicrostructureSlag
35Publications
14H-index
2,227Citations
Publications 31
Newest
Abstract A possible reduction in high CO2 emission associated with cement production can be achieved by sequestering CO2 as carbonate mineral in hydrated cement matrix. This study aims to investigate application of biochar and its combination with fly ash to improve CO2 uptake and carbonate mineralization in cement mortar. Effect of fly ash and biochar, from waste peanut shell, on carbonate mineralization, strength, permeability and shrinkage of mortar are investigated. Experimental findings sho...
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#1Souradeep Gupta (UNSW: University of New South Wales)H-Index: 1
#1Souradeep Gupta (UNSW: University of New South Wales)H-Index: 16
Last. Alireza Kashani (UNSW: University of New South Wales)H-Index: 14
view all 2 authors...
Abstract Early stage and fresh properties of cementitious materials are critical to ease of placement and durability. This study investigated the potential of biochar, prepared by pyrolysis of locally generated waste peanut shells, to improve workability, hydration, early age strength and shrinkage of cement mortar and cement-fly ash mortar. Experimental observations suggest that addition of biochar slightly reduced workability, reflected in the increase in yield stress and reduction in flow. Th...
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#1Souradeep Gupta (UNSW: University of New South Wales)H-Index: 16
#1Souradeep Gupta (UNSW: University of New South Wales)H-Index: 1
Last. Harn Wei KuaH-Index: 25
view all 4 authors...
Abstract High autogenous and drying shrinkage associated with the use of silica fume increases the likelihood of cracking under warm climatic conditions and limits its application as a supplementary cementitious material. This research investigates the influence of biochar, added as a partial replacement of silica fume and cement, on shrinkage, hydration, strength and permeability of cement mortar. Biochars were prepared from wood waste and coconut shell and used as 5 wt% cement replacement and ...
6 CitationsSource
#1Alireza Kashani (University of Melbourne)H-Index: 14
#2Tuan Ngo (University of Melbourne)H-Index: 48
Last. Priyan Mendis (University of Melbourne)H-Index: 37
view all 6 authors...
Lightweight concrete foam is mainly used as a filling for sandwich panels for insulation of buildings. Surfactants are chemical admixtures that play an important role in stabilising the air pores i...
6 CitationsSource
#1Alizera Kashani (UNSW: University of New South Wales)H-Index: 1
#1Alireza Kashani (UNSW: University of New South Wales)H-Index: 14
Last. Duc Tuan Ngo (University of Melbourne)H-Index: 1
view all 2 authors...
Abstract Self-compacting concrete (SCC) has many benefits in terms of production and placement compared to traditional concrete namely, elimination of external or internal vibration for compaction, better flowability, workability and pumpability, as well as increased bonding with congested reinforcement. Moreover, the placement of SCC is faster and requires less labour. The appearance (surface finish), mechanical performance and durability of SCC can be considerably better than traditional concr...
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#1Sina Sinaie (University of Melbourne)H-Index: 12
#2Tuan Ngo (University of Melbourne)H-Index: 48
Last. Andrew S. Whittaker (UB: University at Buffalo)H-Index: 49
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Abstract Cellular materials and structures have been shown to be highly effective in the context of energy absorption systems. However, accurate simulation of the response of these materials and structures is rather complex. As a simulation tool, the material point method (MPM) simplifies the creation of intricate geometries. At the same time, being a particle-based approach, it is also well-suited for problems involving large deformations and contact. These features make MPM attractive for the ...
4 CitationsSource
#1Alireza Kashani (UNSW: University of New South Wales)H-Index: 14
#2Tuan Ngo (University of Melbourne)H-Index: 48
Last. Ailar Hajimohammadi (UNSW: University of New South Wales)H-Index: 20
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Abstract This paper shows the potential benefits of using recycled glass fines as a sustainable and low-cost alternative compared to fly ash, silica fume and fine sand in concrete foam. One of the main concerns of using recycled glass in concrete is durability and particularly alkali-silica reaction (ASR). SEM-EDS analysis of the mortar with glass showed the formation of ASR gel with a higher silicon to calcium ratio around the glass particles which justified the large ASR expansion. On the othe...
18 CitationsSource
#1Alireza Kashani (University of Melbourne)H-Index: 14
#2Tuan Ngo (University of Melbourne)H-Index: 48
Last. Priyan Mendis (University of Melbourne)H-Index: 37
view all 3 authors...
The inefficiency of typical superplasticisers in geopolymer compared with Portland cement limits the design of a self-compacting concrete. This study investigated the rheology, reactivity and stren...
4 CitationsSource
#1Tuan V. Nguyen (University of Melbourne)H-Index: 112
#1Tuan Nguyen (University of Melbourne)H-Index: 9
Last. Stéphane Bordas (PRC: China Medical University (PRC))H-Index: 65
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The article presents a deep neural network model for the prediction of the compressive strength of foamed concrete. A new, high-order neuron was developed for the deep neural network model to improve the performance of the model. Moreover, the cross-entropy cost function and rectified linear unit activation function were employed to enhance the performance of the model. The present model was then applied to predict the compressive strength of foamed concrete through a given data set, and the obt...
44 CitationsSource
#1Alireza KashaniH-Index: 14