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A platform for research: civil engineering, architecture and urbanism
Investigation of Properties of Ultra-High-Performance Concrete and Development of UHPC Waffle Deck Panels for Pedestrian Bridges
As a developing country, Sri Lanka is in the requirement of constructing bridges and high-rise structures under infrastructure development projects based on the country’s need or on behalf of structurally unstable old structures. Therefore, new technologies are useful to improve the construction efficiency while using precast items which can achieve the required performance with improved durability. Accordingly, the full depth ultra-high-performance concrete (UHPC) waffle panels (3 m long, 2 m wide, and 0.2 m thick) are introduced as a possible alternative to the construction industry. The usage of UHPC is highly limited in Sri Lanka, and UHPC waffle deck panels are not available in Sri Lanka as a precast item for bridge construction. Then this study is focusing on the development of UHPC waffle deck panels using locally available materials. Accordingly, a number of trials were performed to find out a suitable mix proportion for UHPC with compressive strength ≥150 MPa at 28 days. Therefore, cubes (75 mm × 75 mm × 75 mm) were cast based on different mix designs and specimens were tested for compressive strength at 01, 07, 28, and 56 days. Then other properties of the selected UHPC mixture were investigated through testing flexural strength, tensile strength, water absorption, porosity, thermal expansion, and drying shrinkage after completion of 28 days for cast specimens. Finally, a representative sample of the waffle deck panel was tested for panel service test and ultimate load test. As per the properties of UHPC and load test results of designed waffle deck panel, this development is recommended for pedestrian and light vehicle bridges.
Investigation of Properties of Ultra-High-Performance Concrete and Development of UHPC Waffle Deck Panels for Pedestrian Bridges
As a developing country, Sri Lanka is in the requirement of constructing bridges and high-rise structures under infrastructure development projects based on the country’s need or on behalf of structurally unstable old structures. Therefore, new technologies are useful to improve the construction efficiency while using precast items which can achieve the required performance with improved durability. Accordingly, the full depth ultra-high-performance concrete (UHPC) waffle panels (3 m long, 2 m wide, and 0.2 m thick) are introduced as a possible alternative to the construction industry. The usage of UHPC is highly limited in Sri Lanka, and UHPC waffle deck panels are not available in Sri Lanka as a precast item for bridge construction. Then this study is focusing on the development of UHPC waffle deck panels using locally available materials. Accordingly, a number of trials were performed to find out a suitable mix proportion for UHPC with compressive strength ≥150 MPa at 28 days. Therefore, cubes (75 mm × 75 mm × 75 mm) were cast based on different mix designs and specimens were tested for compressive strength at 01, 07, 28, and 56 days. Then other properties of the selected UHPC mixture were investigated through testing flexural strength, tensile strength, water absorption, porosity, thermal expansion, and drying shrinkage after completion of 28 days for cast specimens. Finally, a representative sample of the waffle deck panel was tested for panel service test and ultimate load test. As per the properties of UHPC and load test results of designed waffle deck panel, this development is recommended for pedestrian and light vehicle bridges.
Investigation of Properties of Ultra-High-Performance Concrete and Development of UHPC Waffle Deck Panels for Pedestrian Bridges
Lecture Notes in Civil Engineering
Dissanayake, Ranjith (editor) / Mendis, Priyan (editor) / Weerasekera, Kolita (editor) / De Silva, Sudhira (editor) / Fernando, Shiromal (editor) / Konthesingha, Chaminda (editor) / Perera, R. M. W. (author) / Dinushika, T. S. (author) / Swarnamali, M. S. (author) / Priyadarshana, T. (author)
12th International Conference on Structural Engineering and Construction Management ; Chapter: 44 ; 621-642
2022-09-29
22 pages
Article/Chapter (Book)
Electronic Resource
English
Novel UHPC-CFRP Waffle Deck Panel System for Accelerated Bridge Construction
| Online Contents | 2016
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