Performance evaluation of hybrid glass wastes incorporated concrete

U, Rao A; Bhandary, Radhika; Maddodi, B S; Tantri, Adithya; Shenoy, Sundip; Kamath, Muralidhar; Shetty, Roshan S

doi:10.30919/es8e758

Cited by 3 publications

(1 citation statement)

References 36 publications

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“…The studies have been conducted using recycled waste such as recycled coal bottom ash and recycled PET as a partial replacement for aggregates, which showed improvement in the strength and durability properties of concrete [34,35]. Even waste products of the marble industry and crushed waste glasses were proven to be better partial replacement materials to be used as of aggregates in concrete [36][37][38].…”

Section: Related Workmentioning

confidence: 99%

Application of Coffee Husk Ash as Partial Replacement of Fine Aggregate in Concrete

Bhandary,

Rao,

Shetty

et al. 2023

Sustainability

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The task of turning agricultural waste into practical construction and building materials has been placed before civil engineers. Coffee husk is produced in vast amounts due to the global commerce of coffee beans, which are incinerated into ash when used as fuel, producing coffee husk ash (CHA). Even though many researchers have worked on the utilization of CHA in concrete, they have been used as partial cement replacement but not as a replacement of aggregates. The experimental study of the performance of concrete on fine aggregate replaced partially with CHA is represented in this paper. The fine aggregate is replaced by 0%, 2%, 4%, 6%, and 8% by weight of CHA. The performance of the partially replaced fine aggregate with CHA is reviewed by considering the compressive strength and workability of fresh concrete and the splitting tensile strength, flexural strength, durability under acid and alkaline media, thermal conductivity, and rapid chloride permeability test of hardened concrete. The results indicate that the partial replacement of fine aggregate with 4% of CHA (CHA04) in concrete provides a positive impact to all the selected performance parameters. The compressive strength, flexural strength, and splitting tensile of the CHA04 mix were 43.4 MPa, 3.7 MPa, and 2.44 MPa, respectively, which were 28.4%, 19.35%, and 1.66%, respectively, greater than normal concrete mix (CHA00). Even the study of acid and alkaline attack on the CHA04 mix showed lesser strength reduction as compared to other mixes. The RCPT showed less chloride permeability, and the thermal conductivity is higher for CHA04, indicating lesser voids compared to other mixes. With the help of this investigation, it can be said that fine aggregate replacement with 4% CHA has the best strength and durability properties compared to regular concrete.

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Section: Related Workmentioning

confidence: 99%

Application of Coffee Husk Ash as Partial Replacement of Fine Aggregate in Concrete

Bhandary,

Rao,

Shetty

et al. 2023

Sustainability

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Assessment of fly ash and ceramic powder incorporated concrete with steam-treated recycled concrete aggregates prioritising nano-silica

Rao,

Shetty,

Bhandary P

et al. 2024

emergent mater.

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Present research involves determining the effects of a proposed novel nano-silica prioritized-steam-treated recycled concrete aggregate (RCA) on microstructural, mechanical, and durability aspects of concrete incorporated with waste ceramic powder (WCP). The study on novel nano-silica prioritized-steam-treated recycled concrete aggregate revealed that 3% nano-silica induction with 3-h steam treatment for 50% adhered mortar bonded RCA performed optimally. The physical characterization of treated RCA showed improvement compared to untreated RCA, which was confirmed by microstructure study indicating the formation of additional calcium silicate hydrates in the bonded adhered mortar of treated RCA. Furthermore, as WCP has significant contents of alumina and silica, an optimum ternary binder mix was developed with cement, fly ash, and WCP. Later, a study was performed to analyse the performance of treated RCA incorporated in WCP prioritized concrete mix. The mechanical performance of WCP prioritized concrete with treated RCA was investigated through compressive strength, flexural strength, split tensile strength, and modulus of elasticity. The quality was ensured through ultrasonic pulse velocity, water absorption, and density characterization. The durability of concrete was studied with 5% concentrated hydrochloric acid attack and sea water (pH = 8.3 to 8.7) exposure conditions for a duration of 148 days (including 28 days of portable water curing period). Overall, 30% of the ternary mixture based on WCP prioritization, 50% adhere mortar-based RCA, and 3% of nano-silica prioritization steam treatment (3 h) demonstrated the best performance in terms of both mechanical and durability aspects. The study concluded that due to its improved performance, the innovative nano-silica priority steam treatment approach could replace 100% of RCA in concrete. Furthermore, treated RCA being advantageous because of easy adoptable technique for real-time practices as well as maintaining consistency regards RCA characteristics throughout concrete mixture be the challenge.

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Low carbon multi-binder composite using lithomargic soil, biomass, and calcined seashell powder for sustainable bricks

Rao,

Bhandary,

Tantri

et al. 2024

Discov Sustain

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Bricks are manufactured using clays, which are fired at temperatures ranging from 1000 to 1200 °C. Due to the lack of quality clay, it is necessary to find alternate soils and waste materials for manufacturing bricks. The use of agricultural, aqua-cultural, and industrial wastes in the manufacturing of construction bricks leads to low-carbon material. This addresses the problem of agro-aqua-industrial waste disposal. The present study focuses on the utilization of biomass (BM) and slaked seashell powder (SSP) in compressed soil bricks made with locally available lithomargic soil (LS). The proposed soil bricks are prepared with 85% processed lithomargic soil, 12.5% biomass and 2.5% seashell powder. The reaction of multi-binder materials has been activated by one-part activation. The cast soil blocks are temperature cured at 100 °C, 250 °C, 500 °C & 750 °C to understand the effect of temperature on the hydration process of binder material. The compressed soil bricks are tested for compressive strength, initial rate of absorption, water absorption test, chloride content, sulphate content, microstructure analysis and thermal conductivity. The strength of soil bricks in bonding and in masonry, 3 prism and 4 prism tests were also conducted. Overall results indicate that bio-based alkali-activated brick masonry is superior for real-time adaptation because it reaches 10 MPa to 11.2 MPa compressive strength and 0.98 MPa to 1.2 MPa shear strength with curing at 500 °C.

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Performance evaluation of hybrid glass wastes incorporated concrete

Cited by 3 publications

References 36 publications

Application of Coffee Husk Ash as Partial Replacement of Fine Aggregate in Concrete

Application of Coffee Husk Ash as Partial Replacement of Fine Aggregate in Concrete

Assessment of fly ash and ceramic powder incorporated concrete with steam-treated recycled concrete aggregates prioritising nano-silica

Low carbon multi-binder composite using lithomargic soil, biomass, and calcined seashell powder for sustainable bricks

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