Properties of Self Compacting Concrete using poly-Propylene Fibres

Babu, GandiSathi; Rao, P. Rama Mohan

doi:10.14445/23488352/ijce-v3i3p106

Cited by 2 publications

(2 citation statements)

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“…For aerobic bacteria, using Bacillus subtilis improved compressive strength [1,6,10,26,[77][78][79][80][81][82][83][84]. Using Bacillus pasteruii improved the strength and permeability of concrete [29,[85][86][87][88][89][90]. Bacillus chonii does not affect mechanical properties [25,28,64,91].…”

Section: Fig 4 Factors Affecting Bacterial Concretementioning

confidence: 99%

“…Using large amounts of calcium lactate can postpone the setting time, decreasing the concrete's strength at an early age. Calcium lactate was the most used nutrient [10,25,43,64,89,92] with different percentages. It was observed that 1% and 0.5% of cement content give better results than 5 and 10 % in compressive strength.…”

Section: Fig 4 Factors Affecting Bacterial Concretementioning

confidence: 99%

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Self-healing concrete techniques and performance, A review

Ghazy,

Emara,

Abdellah

et al. 2023

Res. Eng. Struct. Mat.

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Modern society faces the duality of rapidly expanding structure, making concrete one of the world's most traded materials. However, cement manufacturing can pollute the environment by releasing approximately one tonne of CO2 for every tonne of cement produced. Concrete cracks can provide superior access for aggressive substances such as chlorides and sulfates, resulting in structural deterioration. So, to fix concrete cracks, different traditional methods were used, which use cement and some chemical agents that are hazardous to the environment. Because of the environmental issues and sustainability challenges associated with cement and concrete, it is preferable to reduce the amount of cement used by developing promising and unique solutions to enable quick crack healing in concrete and extend the structure's lifetime. Therefore, incorporating self-healing mechanisms into construction materials has been proposed to improve their performance and durability while reducing the need for maintenance and repair. This review assesses the performance and causes of autogenous and autonomous self-healing techniques. The autogenous technique occurs naturally due to inherent material properties, while the autonomous technique uses various healing agents, such as chemical or biological substances. Both techniques rely on forming calcium carbonate (CaCO3) crystals as the principal agent for concrete healing. Previous findings showed that the autogenous technique has limited efficacy in repairing larger cracks with a width exceeding 0.3mm. In contrast, autonomous techniques have shown successful repai of cracks exceeding 2mm in width. The application of an autonomous methodology in the field of concrete has resulted in significant results, such as effectively repairing large cracks, enhancing structural integrity, and substantially decreasing permeability levels from high to exceedingly low levels

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Section: Fig 4 Factors Affecting Bacterial Concretementioning

confidence: 99%

Section: Fig 4 Factors Affecting Bacterial Concretementioning

confidence: 99%

Self-healing concrete techniques and performance, A review

Ghazy,

Emara,

Abdellah

et al. 2023

Res. Eng. Struct. Mat.

View full text Add to dashboard Cite

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Analysis of canal discharge management through remodeled structure at Guddu Barrage

Mukhtar,

Shangguan,

Sarwar

et al. 2024

Discov Appl Sci

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As vital hydraulic infrastructure, barrages and canals are crucial for agricultural irrigation in Sindh Province, Pakistan. Any deviation from the intended design discharge can significantly impact water resource management, leading to economic losses. The Ghotki Canal in Sindh faced challenges in receiving its allocated inflow, prompting an extension of the divide wall at Guddu Barrage to 589.59 ft. However, this extension inadvertently exacerbated the problem by reducing the Ghotki canal's inflow, resulting in a 166.7 ft gap between the original and extended divide wall segments. This study takes a unique approach, using a non-distorted physical model at a scale ratio of 1:85, to assess the influence of the divide wall gap across five scenarios, varying gap width and river flow rates from 100,000 to 500,000 cusecs. The findings highlighted the disruptive effects of the gap on flow regimes, notably affecting critical infrastructure such as the silt excluder and left pocket capacity. Alterations in the divide wall gap width predominantly impact the Ghotki Canal discharge while minimally affecting the Rainee Canal. Without a divide wall gap, the Ghotki Canal's head regulator draws 88% of the designated capacity, while the Rainee Canal consistently receives its total inflow share of 10,000 Cusecs. In conclusion, this study underscores the importance of structure remodeling in barrages for effective water resource management, emphasizing the need for nuanced approaches to optimize canal performance and sustain agricultural livelihoods and regional development.

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Properties of Self Compacting Concrete using poly-Propylene Fibres

Cited by 2 publications

References 0 publications

Self-healing concrete techniques and performance, A review

Self-healing concrete techniques and performance, A review

Analysis of canal discharge management through remodeled structure at Guddu Barrage

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