BÊ TÔNG PHUN, MỘT GIẢI PHÁPHỮU HIỆU CHO SỬA CHỮA CÁC CÔNG TRÌNH GIAO THÔNG VÀ KẾT CẤU XÂY DỰNG DÂN DỤNG

 Abstract-Shotcrete is a special type of concrete that is constructed by using a high-speed spraying device to spray concrete on the construction surface without forms. Currently in the world, shotcrete is widely used in different fields of construction industry. Specifically shotcrete is applied in renovating, upgrading and repairing damaged, enhancing bearing capacity for construction structures. Using sprayed concrete in sloping roofs, protecting dike roofs; or construction of items that do not need to be mixed, suitable for works with winding surfaces, high aesthetic requirements. In addition, spraying concrete is the fastest construction method for shell structures; or used in underground tunneling, concrete injection as a temporary support structure in tunnels; concrete lining for tunnel concrete. In Vietnam, some big projects such as Deo Ca Tunnel, Cu Mong Tunnel, Hai Van Pass Tunnel, Hydroelectric Dams (Yali, Hoa Binh, Ham Thuan, Dai Ninh, Dong Nai Hydropower ...) have been used technology spray concrete. This paper deals with the requirements of manufacturing materials, manufacturing technology, construction technology, quality control, evaluation experiments, practical applications and application scope.

Thông tin liên lạc của tác giả:

Họ và tên (tác giả số 1):         ThS. Cao Anh Tuấn

Chức danh:                            Phó Giám đốc

Cơ quan:                                Phòng TN TĐ ĐB I - Viện KH&CN GTVT

Địa chỉ:                                   1252 Đường Láng – Đống Đa – Hà Nội

Điện thoại:                             0904518034

E-mail:                                    caotuanitst@gmail.com