Bài viết Ảnh hưởng của nhựa PET tái chế từ chai nhựa đến một số tính chất cơ lý của bê tông được thực hiện nhằm xác định ảnh hưởng của hàm lượng nhựa PET phế thải đến tính công tác của hỗn hợp CWRP, cường độ chịu nén, chịu kéo khi uốn, mô đun đàn hồi và khối lượng thể tích của CWRP ở 28 ngày tuổi. | Transport and Communications Science Journal Vol 72 issue 9 12 2021 1023-1033 Tạp chí Khoa học Giao thông Vận tải EFFECT OF RECYCLED PET BOTTLES ON THE MECHANICAL PROTPERTIES IN CONCRETE CONTAINING GRINDING PET PARTICLES Nguyen Dinh Hai1 Nguyen Tien Dung1 Tran Anh Tuan1 Vu Ba Thanh1 Le Thu Trang1 Nguyen Van Thanh2 1 University of Transport and Communications No 3 Cau Giay Street Hanoi Vietnam 2 Bac Ninh Department of Transport No 16 Nguyen Phi Y Lan Bac Ninh Bac Ninh Vietnam ARTICLE INFO TYPE Research Article Received 17 09 2021 Revised 12 10 2021 Accepted 26 10 2021 Published online 15 12 2021 https Corresponding author Email Abstract. The mechanical behavior of concrete with recycled bottles made of Polyethene Terephthalate PET is important factor in Concrete with Waste Recycled Plastic. In this paper influences of 10 15 and 20 substitution of concrete with particles PET produced by grinding by volume have been considered. For this purpose prism and cylindrical specimens with different contents of PET flakes to replace concrete by volume were manufactured and the workability of fresh concrete was evaluated. Results showed higher volume proportion of PET lead to lower workability of fresh concrete with the content of PET flakes replacing concrete from 10 to 15 the slump flow reduced by 7 and 36 respectively. Concrete with PET particles indicated a decreasing trend in compressive strength splitting tensile strength and modulus of elasticity with respect to conventional concrete. Specifically when replacing concrete by 10 15 and 20 of PET flakes the compressive strength values decreased by 35 41 and 51 the flexural tensile strength is reduced by and and the modulus of elasticity is reduced by and respectively. On the other hand unit weight test demonstrated concrete containing PET particles is lighter than conventional concrete. Keywords Concrete mechanical properties .
