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·As building construction speeds up demolitions will increase due to concrete s limited lifespan ultimately ending in demolition In earthquake prone countries like Nepal buildings may collapse during earthquakes leading to the disposal of bricks creating potential environmental pollution This research explores the use of Crushed Brick Aggregate CBA
·Production and Utilisation of Artificial Coarse Aggregate in Concrete a Review George K George 1 and P Revathi 2 Published under licence by IOP Publishing Ltd IOP Conference Series Materials Science and Engineering Volume 936 International Conference on Materials Mechanics and Structures 2020 ICMMS2020 14 15 July 2020 Kerala India
·Φ6mm deformed bars were used as shear reinforcement at 200mm spacing were cast in various grouped; Beams cast completely of crushed stone aggregates concrete of 1 2 4 mix Type MC Beams with
·There is very less effect on workability of concrete when fine aggregate is partially replaced by plastic 4 Best compressive strength is obtained at 5% fine aggregate replacement with plastic waste and using steel fibre reinforcement 5 As the strength of 5% replaced concrete is very close to the conventional cube strength hence it can be
·Such replacement of raw sand maintained or decreased the available pores sorptivity and water penetration depth under pressure [8] stated that rounded aggregates perform better than crushed
·Abstract Concrete is made up of a variety of materials including coarse aggregate fine aggregate cement and water which are mixed in different proportions to achieve a specific strength The most important material cement plays an important role in the production of concrete The high cost of traditional building materials is a major
·Cement sand and aggregate are the basic needs of any construction industry Sand is used as a raw material for mortar and concrete and plays an important role in the design of mixtures artificial fine aggregate and the compressive strength of the concrete cube is also known This article outlines the various alternatives to natural sand in
·Concrete is the most essential material used in the construction work It is having high compressive strength low tensile strength and brittle in nature with a proportioned mixture of cement fine aggregate course aggregate water etc Development in the infrastructure is a key factor in governing the demand for concrete
·Concrete consists of cement fine and coarse aggregates which are used as a building material worldwide as it contributes good performance in strength properties [] Cement acts as a binder material when reacted with water which plays a major role in strength development; cement production was about and mega tons in China and India
·recycled aggregate produced only million ton carbon is produced Considering the global consumption of 10 billion tons/year of aggregate for concrete production the carbon footprint can be determined for the natural aggregate as well as for the recycled aggregate The use of recycled aggregate generally increases
·The use of Geopolymer Concrete GPC has been promoted by recent research as a sustainable solution [11] Geopolymers are alkali activated aluminosilicate precursors derived from industrial by products or raw materials such as silica fume SF ground granulated blast slag GGBS fly ash FA which can be used as supplementary cementitious materials SCMs
·Concrete can be defined as a mixture of aggregate cement and water which hardens ISO 6707 standard a composite material that consists essentially of a binding medium within which are embedded particles or fragments of aggregate ASTM C125 standard and as a material formed by mixing cement coarse and fine aggregate and water with or
·N 2017 Experimental Study on Partial Replacement of Coarse Aggregate with Ceramic Tile Wastes and Cement with Glass Powde r International Journal of Chem T ech Research IJCRGG
·The concrete mixture utilizing M30 grade and replacing 30% of fine aggregate with olivine sand demonstrates a peak compressive strength of MPa surpassing the conventional mix s strength of MPa after 28 days These findings indicate that incorporating 30% olivine sand as a replacement for fine aggregate yields the optimum strength
·The use of lightweight aggregate in concrete has gained popularity due to its low density good thermal conductivity and strength environmental friendliness and many other advantages 5 6
·Infrastructure development and urbanization have created a demand for the prime construction material—"Concrete " The manufacture of concrete has pressurized the aggregate supply chain for over exploitation of natural resources leading to eco detrimental impacts besides environmental regulations The auxiliary sectors of the construction industry
·From the fine aggregate gradation graphs it can be see n that the fine aggregate used is at the gr adation limit no 3 Furthermore the amount of sand replaced by plastic bottle waste adjusts
3 ·4 What are the two sources of fine aggregate The two primary sources of fine aggregate are natural sources such as river sand or sea sand and manufactured or artificial sources such as crushed stone dust or quarry fines 5 What is alternative for fine aggregate An alternative for fine aggregate in concrete mixes is using recycled
Wang et al found a greater loss in compressive strength of 10% in the mix including a 100% recycled granular skeleton when both coarse and fine 50 and 100% concrete aggregate were used together However compressive strength of RCA may be improved by increasing the cement content or employing admixtures [29 30]
·into those that can be used as cement replacement fly ash [24 25] natural or artificial pozzolans [26 30] silica f ume and grainy blast furnace slag [31 34]
·Conversely when silica sand with spherical and regular particles is used as the fine aggregate it results in reduced internal friction within the concrete matrix [45 46] This reduction enhances the flowability particularly in the control mix where 100 % silica sand was used as the fine aggregate and a flowability of 745 mm was achieved
·• Aggregate should have good adhering with binding material • Fine aggregates are used to prepare cement mortar lime mortar and cement concrete • Course aggregates are used to prepare cement concrete bituminous pavement rigid pavement etc • They are used in construction of beams columns slab lintel etc
·Fine Aggregate Fine aggregates are those that pass through a sieve Natural sand silt and clay are common components of fine aggregates They are primarily used to fill the voids in coarse aggregates and improve the workability of concrete Fine aggregates also contribute to the overall cohesiveness of the mix Applications of Fine
·FINE AGGREGATE COARSE AGGREGATE Size more than Includes gravels and crushed stones Obtained by crushing various types of granites hard lime stones and sand stones Harsh concrete Size less than Includes natural sand or crushed stone with most particles passing through a sieve Obtained from pits lake river or sea shore
·This review paper presents an empirical evaluation on the application of single use plastic waste as an artificial aggregate as a replacement to the natural fine aggregate FA in concrete mixtures