Properties and Durability of High Strength Self Compacting Self Curing Concrete
Elhapshy, A., Shaheen, Y., Soliman, N., Afify, M. (2025). Properties and Durability of High Strength Self Compacting Self Curing Concrete. EKB Journal Management System, 48(2), 147-156. doi: 10.21608/erjm.2025.329003.1362
Ahmed A. Elhapshy; Yousry B. Shaheen; Noha M. Soliman; Mohamed R. Afify. "Properties and Durability of High Strength Self Compacting Self Curing Concrete". EKB Journal Management System, 48, 2, 2025, 147-156. doi: 10.21608/erjm.2025.329003.1362
Elhapshy, A., Shaheen, Y., Soliman, N., Afify, M. (2025). 'Properties and Durability of High Strength Self Compacting Self Curing Concrete', EKB Journal Management System, 48(2), pp. 147-156. doi: 10.21608/erjm.2025.329003.1362
Elhapshy, A., Shaheen, Y., Soliman, N., Afify, M. Properties and Durability of High Strength Self Compacting Self Curing Concrete. EKB Journal Management System, 2025; 48(2): 147-156. doi: 10.21608/erjm.2025.329003.1362

Properties and Durability of High Strength Self Compacting Self Curing Concrete

ERJ. Engineering Research Journal
Volume 48, Issue 2, April 2025, Page 147-156  XML PDF (1.34 MB)
Document Type: Original Article
DOI: 10.21608/erjm.2025.329003.1362
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Authors
Ahmed A. Elhapshy email orcid 1; Yousry B. Shaheenorcid 2; Noha M. Solimanorcid 3; Mohamed R. Afifyorcid 4
1Civil Department, Faculty of Engineering, Menofia University, Shibin Alkawm, Egypt
2Civil Department, Faculty of Engineering, Menofia University, Shibin Alkawm, Egypt
3Civil Department, Faculty of Engineering, Menoufia University
4Civil Engineering Department, Faculty of Engineering, Menofia University
Abstract
This research aims to investigate the properties and durability of high-strength self-compacting self-curing concrete HS-SC-SCC; three types of self-curing materials (PEG400, LECA, and Red-brick) are conducted; this research is divided into two stages. stage one studies the effect of using quartz powder (QP) by (10, 20, and 30) % as a replacement for sand. stage two studies the effect of using nano-silica (NS) by (1, 2, 3, and 4) % as a replacement for cement on the optimum mixes of stage one, Twenty-seven HS-SC-SCC mixes including control mixes has been examined; this study evaluates the fresh and hardened properties of the HS-SC-SCC; moreover, the effect of environmental conditions, such as exposure to salt attack (NaCl 20%) and elevated temperature (200 ℃) for (12, 24, and 36) hours. is also evaluated.

The results of HS-SC-SCC mixes show that using (QP) by 20% as a replacement for sand improves compressive strength at 28 days by 4.19% and 8.69% for (LECA and Red-brick) respectively, and using (QP) by 30% as a replacement for sand improves compressive strength by 21.88% for (PEG400).

Moreover, the compressive strength increased by (57.75%, 40.29%, and 32.14 %) When using 2% of NS as a replacement for cement for (PEG400 and Red-brick), and 3% of NS as a replacement for cement for (LECA), respectively, at 28 days.
Keywords
Quartz Powder; Nano-Silica; PEG400; LECA; Red-Brick
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