Results 31 to 40 of about 121,382 (305)
Ultra-High-Performance Concrete Shear Keys in Concrete Bridge Superstructures [PDF]
MATEC Web of Conferences, 2019 Many existing bridges have adjacent girders that utilize grouted shear keys to transfer loads laterally across the superstructure. Cracking and leaking often cause degradation of the shear key and the girder.
Flores Elsy Y. +3 more
doaj +1 more source
High-Power Fiber Laser Cutting for 50-mm-Thick Cement-Based Materials [PDF]
, 2020 This experimental research highlights the applicability of laser cutting to cement-based materials using multimode fiber lasers. A 9 kW multimode fiber laser is used, and the experimental variables are the water-to-cement ratio, laser speed, and material
Lee, Dongkyoung +2 more
core +1 more source
Case Studies in Construction Materials, 2022 The impact of three-shaped steel fibres (straight, hooked end, and corrugated) with varying steel fibre (SF) contents (0.75 %, 1.5 %, and 2.5 % by volume fraction) on the fresh and mechanical characteristics of ultra-high-performance concrete was ...
Bassam A. Tayeh +3 more
doaj +1 more source
Corrosion-fatigue synergy in steel bridges: Mechanisms and mechanical degradation
Results in EngineeringThis study pioneers the investigation of asynchronous corrosion-fatigue coupling effects on structural steel degradation, addressing a critical gap in understanding synergistic damage mechanisms under combined environmental and mechanical stresses ...
Lizhen Huang +6 more
doaj +1 more source
A Review on Sugarcane Bagasse Ash which Enhance Properties of Ultra-High Performance Concrete and Usable for EFUHPC [PDF]
E3S Web of ConferencesIn this study we discus about sugarcane bagasse ash which improving mechanical properties of concrete, High Performance Concrete (HPC) and suitable for making Ecofriendly Ultra-High Performance Concrete (EFUHPC). Many ecofriendly materials like Sugarcane
Sharma Devendra Kumar, Ahamad Imran
doaj +1 more source
ULTRA HIGH-PERFORMANCE CONCRETE BEHAVIORAL STUDY
Journal of critical reviews, 2022 It is investigated in the study paper how UHPC reacts when used as a bridge girder material. The early-age shrinkage, transfer length, creep behavior, and shrinkage following steam treatment of four optimized girders were all investigated. Data was gathered using vibrating wire gauges at strategic locations inside each girder after re casting.
openaire +1 more source
Flexural Strength Evaluation of Reinforced Concrete Members with Ultra High Performance Concrete
Advances in Materials Science and Engineering, 2016 Flexural strength evaluation models for steel fiber reinforced ultra high strength concrete were suggested and evaluated with test results. Suggested flexural strength models were composed of compression stress blocks and tension stress blocks ...
Baek-Il Bae +2 more
doaj +1 more source
Effect of Nanomaterial on the Properties of Ultra High Performance Concrete
Iraqi Journal of Industrial Research, 2021 In recent years, there is a great interest in many countries to use the limestone powder in produce concrete by the replacing it as a proportion of cement weight able to improving the properties of the concrete as well as this type of powder lead to the
Nada Mahdi Fawzi Aljalawi
doaj +1 more source
Concrete spall damage of UHPC slabs under contact detonation - An experimental investigation [PDF]
, 2015 Concrete spallation is a typical brittle damage mode under close-in or contact explosions. Upon concrete spallation, a large number of fragments displace from the concrete surface with high speed and these fragments endanger the personnel and equipment ...
Hao, Hong, Li, Jun, Wu, Chengqing
core +1 more source
Response of the ultra high performance concrete under dynamic compressive loading
Acta Polytechnica CTU Proceedings, 2023 Ultra high performance concrete is a modern cementitious material which exhibits excellent mechanical properties such as damage tolerance, fracture toughness and durability.
Nela Krčmářová +3 more
doaj +1 more source