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Improvising the Self-Healing capabilities of concrete Using Different Pozzolanic Materials and crystalline Admixtures

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Journal of Wuhan University of Technology(Materials Science) 2022年第3期37卷 429-439页

作者： A Ravitheja T chandra Sekhara Reddy c sashidhar SVR Engineering college AyyalurNandyalKurnoolAndhra PradeshIndia civil Engineering G Pulla Reddy Engineering CollegeKurnoolAPIndia Jawaharlal Nehru Technological University AnantapurIndia

To analyse the self-healing capacities in terms of mechanical performance of the pozzolanic materials,such as,fly ash,metakaolin and silica fume and crystalline ***-cracked concrete cubes with about 0.05 mm width were exposed to four different environmental conditions at different exposure times in order to determine the effect of temperature and water availability on the self-healing *** the exposure,the control and tested concrete cubes were evaluated for regained strength,void reduction,corrosion inhibition,damp proofing,relative impermeability and *** samples with SF10cA have better cementitious filling and low percentage of voids and water absorption.

关键词： crystalline admixtures pozzolanic materials self-healing

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Self-Healing concrete with crystalline Admixture——A Review

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Journal of Wuhan University of Technology(Materials Science) 2019年第5期34卷 1143-1154页

作者： A Ravitheja Dr T chandra Sekhara Reddy Dr c sashidhar JNTU college of Engineering AnantapurAPIndia civil Engineering GPR Engineering CollegeKurnoolAPIndia civil Engineering JNTU College of EngineeringAnantapurAPIndia

The scope of the present paper is to understand the effects of crystalline admixture on the selfhealing capacity of the cementitious composites. Previous studies were examined and a conclusion was drawn to the effect that different additives to crystalline admixture tend to improve self-healing of concrete for larger cracks. It is recommended that initial treatment with chemical admixture can stimulate and heal further cracks and it has the better repeatability trend in mixing with the concretes and mechanical recovery is possible even under repetitive preloading. Effective self-healing with chemical admixtures even under open-air exposure, leads to study the importance of a service ability design parameter including the maximum allowable crack width by repeatability analysis as a function of the exposure with the concept of sealable crack width.

关键词： crystalline admixture permeability reducer admixture cracking

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