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Development and Characterization of Basalt Fiber-Reinforced Green Concrete Utilizing Coconut Shell Aggregates
被引:0
作者:
Unal, Muhammed Talha
[1
]
Bin Hashim, Huzaifa
[1
]
Gokce, Haci Suleyman
[2
]
Ayough, Pouria
[3
]
Koksal, Fuat
[4
]
El-Shafie, Ahmed
[5
]
Simsek, Osman
[6
]
Pordesari, Alireza
[1
]
机构:
[1] Univ Malaya, Dept Civil Engn, Kuala Lumpur 50603, Malaysia
[2] Izmir Democracy Univ, Civil Engn Dept, Izmir, Turkiye
[3] Chongqing Univ, Sch Civil Engn, Chongqing 400045, Peoples R China
[4] Yozgat Bozok Univ, Dept Civil Engn, TR-66900 Yozgat, Turkiye
[5] United Arab Emirate Univ, Natl Water & Energy Ctr, Al Ain 15551, U Arab Emirates
[6] Gazi Univ, Dept Civil Engn, TR-06100 Ankara, Turkiye
关键词:
lightweight aggregate concrete;
coconut shells;
waste aggregates;
sustainability;
packing density;
HIGH-PERFORMANCE CONCRETE;
BLAST-FURNACE SLAG;
MECHANICAL-PROPERTIES;
PACKING DENSITY;
LIGHTWEIGHT AGGREGATE;
FLY-ASH;
CEMENTITIOUS MATERIALS;
HARDENED PROPERTIES;
COARSE AGGREGATE;
BOTTOM ASH;
D O I:
10.3390/su16177306
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
Lightweight aggregate concrete (LWAC) is gaining interest due to its reduced weight, high strength, and durability while being cost-effective. This research proposes a method to design an LWAC by integrating coconut shell (CS) as coarse lightweight aggregate and a high volume of wet-grinded ultrafine ground granulated blast furnace slag (UGGBS). To optimize the mix design of LWAC, a particle packing model was employed. A comparative analysis was conducted between normal-weight concrete (M40) and the optimized LWAC reinforced with basalt fibers (BF). The parameters analyzed include CO2 emissions, density, surface crack conditions, water absorption and porosity, sorptivity, and compressive and flexural strength. The optimal design was determined using the packing density method. Also, the impact of BF was investigated at varying levels (0%, 0.15%, and 1%). The results revealed that the incorporation of UGGBS had a substantial enhancement to the mechanical properties of LWAC when BF and CS were incorporated. As a significant finding of this research, a grade 30 LWAC with demolded density of 1864 kg/m3 containing only 284 kg/m3 cement was developed. The LWAC with high-volume UGGBS and BF had the minimum CO2 emissions at 390.9 kg/t, marking a reduction of about 31.6% compared to conventional M40-grade concrete. This research presents an introductory approach to sustainable, environmentally friendly, high-strength, and low-density concrete production by using packing density optimization, thereby contributing to both environmental conservation and structural outcomes.
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页数:27
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