Results 131 to 140 of about 1,680 (182)

New development of ultra-high-performance concrete (UHPC)

Composites Part B: Engineering, 2021
Abstract Ultra-high-performance concrete (UHPC) is a type of cement-based composite for new construction and/or restoration of existing structures to extend service life. UHPC features superior workability, mechanical properties, and durability compared with conventional concrete.
Jiang Du, Weina Meng, Kamal H. Khayat, Yi Bao, Pengwei Guo, Zhenghua Lyu, Adi Abu-obeidah, Hani Nassif, Hao Wang   +8 more
openaire   +4 more sources

Nanomaterials in ultra-high-performance concrete (UHPC) – A review

Cement and Concrete Composites, 2022
Doo-Yeol Yoo, Taekgeun Oh, Nemkumar Banthia   +2 more
openaire   +3 more sources

Autoclaving of ultra‐high performance concrete (UHPC)

ce/papers, 2018
AbstractBy the combination of an optimized granulometry, a reduced water–cement ratio and the use of superplasticizers ultra‐high performance concrete achieves a compressive strength of over 150 N/mm2 and a high resistance regarding acids and water‐soluble salts.
Julia von Werder, Sebastian Simon, Christian Lehmann, Christian Selleng, Patrick Fontana, Birgit Meng   +5 more
openaire   +1 more source

Functional microfibre reinforced ultra-high performance concrete (FMF-UHPC)

Cement and Concrete Research, 2020
Abstract The present paper proposes a novel class of fibre reinforced concrete, realized by using shape memory alloy (SMA) fibres as reinforcement in ultra-high performance concrete (UHPC). SMAs can change their geometry imposed by a solid to solid phase transformation triggered by thermal activation or stress.
Maximilian Schleiting, Alexander Wetzel, Philipp Krooß, Jenny Thiemicke, Thomas Niendorf, Bernhard Middendorf, Ekkehard Fehling   +6 more
openaire   +1 more source

Structural Members Made of Ultra-High- Performance Concrete (UHPC)

2020 Advances in Science and Engineering Technology International Conferences (ASET), 2020
Dubai is one of the fastest growing cities in the world. Construction industry has been in quest to meet this growth. High performance concrete has been of a great interest to the construction industry. In this research different design mixes were tried to produce concrete of ultra-high performance (UHPC).
Adel Al Wazeer, Elgaali Elgaali
openaire   +1 more source

Acid Resistance of Ultra High-Performance Concrete (UHPC)

2015
Based on the knowledge of the deterioration mechanisms of different acid solutions the performance of UHPC – amongst others – in different acid environments was comparatively tested. The interconnection between the acid solutions and UHPC was examined by pH-value measurements, light microscopy (LM), scanning electron microscopy with energy dispersive X-
Andreas Koenig, Frank Dehn
openaire   +1 more source

Characterization of sustainable ultra-high performance concrete (UHPC) including expanded perlite

Construction and Building Materials, 2021
Abstract In this study, the performance of ultra-high performance concrete (UHPC) containing expanded perlite powder (or expanded perlite sand) has been investigated comprehensively. The rheological properties, workability, mechanical properties and durability are determined.
Xinpeng Wang, Di Wu, Qihui Geng, Dongshuai Hou, Muhan Wang, Liangwei Li, Pan Wang, Dongdong Chen, Zhongping Sun   +8 more
openaire   +1 more source

Ultra high performance concrete (UHPC) sleeper: Structural design and performance

Engineering Structures, 2020
Abstract Both structural and material performance of railway sleepers are critical to ensure the safety of railway track structures. In this study, for the first time, ultra high performance concrete (UHPC) is adopted to the post-tensioning type of sleeper to prolong design life and reduce the maintenance of sleepers.
Bae, Younghoon, Pyo, Sukhoon
openaire   +2 more sources

High-volume fly ash paste for developing ultra-high performance concrete (UHPC)

Ciência & Tecnologia dos Materiais, 2017
Abstract Ultra-high performance concrete is a kind of high-tech composite material which shows superb characteristics such as self- compactness, compressive strength higher than 150 MPa, and exceptional durability performances compared to other kinds of concrete.
Ferdosian, I., Camões, Aires, Ribeiro, Manuel   +2 more
openaire   +2 more sources

Ultra High Performance Concrete (UHPC) in case of fire

Ultra-high-performance concrete (UHPC) has exceptional mechanical properties at room temperature. However, there are no standardized procedures to characterize UHPC in fire. This is due to the lack of research on the subject, leaving gaps for experimental and numerical studies.
openaire   +1 more source