Date

2023-1-26

Author

ERMAN, TUNÇER

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Every year, approximately 1.5 billion tires are getting discarded. This number is expected to reach ~5 billion by 2030. Tire landfills create a significant fire hazard and not an ideal solution. Hence, disposal of waste tires is prohibited in many countries; instead, they should be recovered and recycled. This thesis aims to produce pervious concrete – a special concrete with high porosity that allows water to pass directly through, hence reducing the surface runoff and allowing groundwater recharging – utilizing scrap tires as aggregates. The main weaknesses of concretes using scrap tires as aggregates (rubberized concretes) stem from poor adhesion between cement and rubber and the soft and weak nature of rubber aggregate. In this thesis, main aim was developing more sustainable pervious concretes for to be used in the industry. Portion of the cement replaced with fly ash and silica fume in order to decrease total carbon emission of the mix. And, depleting raw natural coarse aggregates replaced with shredded rubbers. Results show that incorporation of shredded rubber aggregates decreases mechanical strength and permeability but increases abrasion resistance. Surface treatment with silane can improve the mechanical strength and abrasion resistance furthermore. Yet, increased strengths were lower than concretes with natural aggregates.

Subject Keywords

Rubberized Pervious Concrete, Fly Ash, Silica Fume, Waste Tire Rubber, Silane Treatment

URI

https://hdl.handle.net/11511/102487

Collections

Graduate School of Natural and Applied Sciences, Thesis