An experimental study on fiberly reinforced concrete using polypropylene fibre with virgin and recycled road aggregate

• Autorzy: Khoso S. , Naqash M. T. , Sher S. , Saeed Z.

Identyfikatory

DOI

10.21307/ACEE-2018-007

• Języki publikacji: EN

Abstrakty

EN

This research work mainly focuses on improving the concrete strength based on fiber reinforcement both in compression and tension. Concrete with various mix proportions containing dosage of Polypropylene (PP) fiber of lengths ranging from 13 to 25 mm with coarse aggregate replacement levels at 10%, 20%, and 30% by dismantled road aggregate were made and the compressive and tensile strengths were investigated. The experimental test results revealed high compressive and tensile strength at curing period of 28 and 56 days. The specimens tested observed that due to addition of fiber, the fibers could hold the matrix together even after extensive cracking and crushing. Net result of all these is to impart to the fiber composite pronounced post-cracking ductility which is absent in traditional concrete. In order to provide base for comparison, concrete specimens as a reference were cast without the addition of polypropylene fiber. Test result revealed that by adding polypropylene fibers at 6grams per one kg of cement a considerable improvement in the strength of concrete of 37.68 MPa and 43.59 MPa at 28 and 56 days respectively with 10% coarse aggregate replacement by recycled aggregate is achieved.

PL

W artykule przedstawiono badania, których celem było zwiększenie wytrzymałości betonu na ściskanie i rozciąganie przed dodatek zbrojenia rozproszonego w postaci włókien polipropylenowych. W badaniach wytrzymałości na ściskanie i rozciąganie próbek betonowych stosowano różnorodne mieszanki betonowe z dodatkiem włókien polipropylenowych (PP) o długościach od 13 do 25 mm i z dodatkiem kruszywa wtórnego pochodzącego z rozbiórki nawierzchni drogowych zastępującego kruszywo grube w ilościach: 10%, 20% i 30%. W badaniach, po 28. i 56. dniach twardnienia betonu, uzyskano wysoką wytrzymałość na ściskanie i rozciąganie. Dzięki dodatkowi włókien zaobserwowano, że matryca cementowa jest utrzymana nawet wówczas, gdy ma miejsce intensywne zarysowanie i zmiażdżenie próbki. W badaniach stwierdzono zatem ciągliwość po zarysowaniu kompozytu betonowego zbrojonego włóknami, której pozbawiony jest tradycyjny beton. Do badań porównawczych, wykonano próbki betonowe bez dodatku włókien polipropylenowych. W badaniach porównawczych, dzięki dodatkowi włókien polipropylenowych w ilości 6 g/kg cementu uzyskano znaczną poprawę wytrzymałości betonu - o 37.68 MPa i 43.59 MPa, odpowiednio po 28. i 56. dniach i przy 10% zastąpieniu kruszywa grubego kruszywem drogowym, z recyklingu.

Słowa kluczowe

EN

polypropylene; concrete; fiber; cubes; cylinders; strength

PL

polipropylen; beton; włókno; kostki; walce; wytrzymałość

• Wydawca: Silesian University of Technology
• Czasopismo: Architecture Civil Engineering Environment
• Rocznik: 2018
• Tom: Vol. 11, no. 1
• Strony: 73--80
• Opis fizyczny: Bibliogr. 18 poz.

Twórcy

autor

Khoso S.

• Department of Civil Engineering, Quaid-e-Awam University College of Engineering, Sciences & Technology (QUCEST), Larkana, Sindh, Pakistan

autor

Naqash M. T.

• Civil Engineering Department, Faculty of Engineering, Islamic University Madinah, Kingdom of Saudi Arabia

autor

Sher S.

• Post-Graduate Student, MS in Environmental Engineering from USPCASW - Mehran University of Engineering & Technology, Jamshoro Sindh, Pakistan

autor

Saeed Z.

• Post-Graduate Student, MS in Structural Engineering, NED University Karachi, Sindh, Pakistan

Bibliografia

• [1] R. G. Mansfield, (1999). Polypropylene in the textile industry, Plastics Engineering, 30.
• [2] J. Daniel, et al., State-of-the-Art Report on Fiber Reinforced Concrete Reported by ACI Committee 544, ACI J, 96.
• [3] P.-W. Chen and D. Chung, (1996). Comparative Study of Concretes Reinforced with Carbon, Polyethylene, and Steel Fiber and Their Improvement by Latex Addition, ACI materials journal, 93, 129-133.
• [4] P. A. Patela, et al., An Investigation on Properties of various Fibre Reinforced Concretes.
• [5] M. Limbachiya, et al., (2000). Use of recycled concrete aggregate in high-strength concrete, Materials and structures, 33, 5740.
• [6] D. Suji, et al., (2007). Experimental study on behaviors of polypropylene fibrous concrete beams, Journal of Zhejiang University-Science A, 8, 1101-1109.
• [7] U. Dave and Y. Desai, (2007). Effects of polypropylene, polyester and glass fibres on various strengths of ordinary and standard concretes.
• [8] S. Khoso, et al., (2014). Qualitative analysis of baked clay bricks available in Larkana Region, Pakistan, Architecture Civil Engineering Environment, 7(2), 41-50.
• [9] M. T. Naqash, et al., (2014). An overview on the seismic design of braced frames, American Journal of Civil Engineering, 2, 41-47.
• [10] S. Khoso, et al., (2014). Investigative construction of buildings using baked clay post-reinforced beam panels, Architecture Civil Engineering Environment, 7(2), 57-66.
• [11] A. A. Ansari, et al., (2010). Latest Development in the Structural Material Consisting of Reinforced Baked Clay, Civil Engineering Congress Proceesidings, 35-39.
• [12] S. Khoso, et al., (2015). An overview on emerging water scarcity in Pakistan, its causes, impacts and remedial measures, Journal of Applied Engineering Science, 13, 35-44.
• [13] S. Khoso, et al., (2015). Experimental Study on Recycled Concrete using Dismantled Road Aggregate and Baggase Ash, in proceedings of 7th International Civil Engineering Congress (ICEC- 2015), Sustainable Developments through Advancements in Civil Engineering, 54-61.
• [14] S. Khoso, et al., (2016). Experimental investigation on the properties of cement concrete partially replaced by silica fume and fly ash, Journal of Applied Engineering Science, 14, 345-350.
• [15] Matrixx-Durable High Quality and innovation new building products in Pakistan. Matrixx-Durable, High Quality and innovation new building products in Pakistan.
• [16] M.A, Keerio, et al, (2017). The effect of Waste Glass as Partial Replacement of cement on Properties of Concrete, Engineering Science and Technology International Research Journal, 1, 59-63.
• [17] S. Khoso, et al., (2017). Effect of Rice Husk Ash and Recycled Aggregates on Mechanical Properties of Concrete, International Journal of Scientific & Engineering research, 3, 1832-1835.
• [18] A. Saand, et al. (2017). Utilization of Waste Glass as Partial Replacement of Fine Aggregate in Concrete, Engineering Science and Technology International Research Journal, 1, 28-31. Available: http://matrixxco.net/polypropylene-fiberreinforced-concrete-dosage-2/

Uwagi

PL

Opracowanie w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018)