Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Flexural Strength and Ductility of Green Engineered Cementitious Composites Containing High Volumes of Fly Ash
In the current study, compressive strength and flexural properties of green engineered cementitious composites (ECC) containing high volumes of fly ash have been investigated. A green ECC was developed by employing Portland cement, high volume of fly ash, recycled concrete fines (RCF), polypropylene (PP) fiber, water and superplasticizer (SP). The effect of sand to binder ratio (0.2 and 0.4) was studied in the different content of fly ash (70 and 80% as cement replacement). Thus, a total of four design mixes of green ECC were employed in this study. Compression test and three-point bending test were carried out for green ECC specimens after 28 days of curing. Test results show that the compressive strengths for green ECC containing higher volume of fly ash (80% as cement replacement) decreased compared to green ECC containing fly ash (70% as cement replacement). However, performances of green ECC in terms of flexural strength and ductility were improved when the amount of fly ash increased from 70 to 80%. On the other hand, increasing RCF to binder ratio (from 0.2 to 0.4) has brought negative impact to both compression and flexural properties of green ECC. Therefore, the use of RCF to binder ratio (R0.2) is considered optimum for the design of this series of green ECC. The choice of fly ash content whether 80% or 70% as cement replacement in developing green ECC depends on the targeted performance of green ECC corresponding to its application.
Flexural Strength and Ductility of Green Engineered Cementitious Composites Containing High Volumes of Fly Ash
In the current study, compressive strength and flexural properties of green engineered cementitious composites (ECC) containing high volumes of fly ash have been investigated. A green ECC was developed by employing Portland cement, high volume of fly ash, recycled concrete fines (RCF), polypropylene (PP) fiber, water and superplasticizer (SP). The effect of sand to binder ratio (0.2 and 0.4) was studied in the different content of fly ash (70 and 80% as cement replacement). Thus, a total of four design mixes of green ECC were employed in this study. Compression test and three-point bending test were carried out for green ECC specimens after 28 days of curing. Test results show that the compressive strengths for green ECC containing higher volume of fly ash (80% as cement replacement) decreased compared to green ECC containing fly ash (70% as cement replacement). However, performances of green ECC in terms of flexural strength and ductility were improved when the amount of fly ash increased from 70 to 80%. On the other hand, increasing RCF to binder ratio (from 0.2 to 0.4) has brought negative impact to both compression and flexural properties of green ECC. Therefore, the use of RCF to binder ratio (R0.2) is considered optimum for the design of this series of green ECC. The choice of fly ash content whether 80% or 70% as cement replacement in developing green ECC depends on the targeted performance of green ECC corresponding to its application.
Flexural Strength and Ductility of Green Engineered Cementitious Composites Containing High Volumes of Fly Ash
Lecture Notes in Civil Engineering
Belayutham, Sheila (Herausgeber:in) / Che Ibrahim, Che Khairil Izam (Herausgeber:in) / Alisibramulisi, Anizahyati (Herausgeber:in) / Mansor, Hazrina (Herausgeber:in) / Billah, Muntasir (Herausgeber:in) / Lee, Siong Wee (Autor:in) / Md Zain, Mohd Raizamzamani (Autor:in) / Oh, Chai Lian (Autor:in) / Yahya, Norrul Azmi (Autor:in) / Saari, Nadiah (Autor:in)
International Conference on Sustainable Civil Engineering Structures and Construction Materials ; 2020
07.04.2022
12 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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