Results 21 to 30 of about 4,252,197 (332)

Strength and water absorption rate of concrete made from palm oil fuel ash [PDF]

open access: yes, 2017
Concrete is one of the most important materials for construction industry. The material in the mixture of concrete includes cement, sand and coarse aggregate.
Manap, Norpadzlihatun   +2 more
core   +1 more source

Theoretical stress strain model for confined concrete

open access: yes, 1988
A stress‐strain model is developed for concrete subjected to uniaxial compressive loading and confined by transverse reinforcement. The concrete section may contain any general type of confining steel: either spiral or circular hoops; or rectangular ...
J. Mander, M. Priestley, R. Park
semanticscholar   +1 more source

Seismic Fragility Analysis of the Reinforced Concrete Continuous Bridge Piers Based on Machine Learning and Symbolic Regression Fusion Algorithms

open access: yesShock and Vibration, 2021
In the fragility analysis, researchers mostly chose and constructed seismic intensity measures (IMs) according to past experience and personal preference, resulting in large dispersion between the sample of engineering demand parameter (EDP) and the ...
Hanbo Zhu, Changqing Miao
doaj   +1 more source

Application of non-metallic composite reinforcement for contact line supports [PDF]

open access: yesMATEC Web of Conferences, 2020
The technology for pre-stressing and anchoring of the composite rebar was developed. It makes possible to reinforce concrete products and produce the contact line supports of high quality, which possesses advantages in comparison with the steel ...
Nikolaev Valery   +2 more
doaj   +1 more source

Bond–slip Behavior of Fiber-reinforced Polymer/concrete Interface in Single Shear Pull-out and Beam Tests [PDF]

open access: yes, 2015
It has been assumed that the fiber-reinforced polymer/concrete interface is subjected to in-plane shear condition when intermediate crack debonding failure occurs.
Harries, Kent A.   +2 more
core   +2 more sources

Experimental Study on Fatigue Crack Propagation of High-Strength Steel Wire with Initial Defects for Bridge Cables

open access: yesApplied Sciences, 2020
In order to study the effect of initial defects on fatigue crack propagation law, a test method to identify fatigue crack propagation rate and path based on load waveform variation was presented, and a new test device was designed to apply fatigue ...
Ying Wang   +3 more
doaj   +1 more source

Causes of failures of industrial floors and concrete surfaces – case study [PDF]

open access: yesMATEC Web of Conferences, 2019
The article presents selected cases of damages to industrial floor and road concrete surfaces. he article presents 3 different objects in which damages were not connected with their excessive service load, but resulted from improper execution, design and
Kiernożycki Włodzimierz   +1 more
doaj   +1 more source

Application and Analyzation of the Vision-Based Structure Model Displacement Measuring Method in Cassette Structure Shaking Table Experiment

open access: yesAdvances in Civil Engineering, 2020
In the shaking table test of large cassette structure, story drift is an essential set of experimental data. The traditional method of displacement measurement is limited to problems such as necessary full contact with the structure model for ...
Wang Yanhua   +4 more
doaj   +1 more source

Nimble in a pandemic: Lessons learned from Concrete Jungle’s Grocery Delivery Program

open access: yesJournal of Agriculture, Food Systems, and Community Development, 2021
First paragraph: As a leader in Atlanta’s fresh produce supply chain for people with limited access to fruits and vegetables, Concrete Jungle (CJ) has established a robust network of partnerships with food and social service community organizations to
Rachel Blacher, Nichole Fields-Kyle
doaj   +1 more source

Structural performance of steel-concrete sandwich beams with carbon nanofiber reinforcement [PDF]

open access: yes, 2019
Cementitious materials such as concrete are typically characterised as quasi-brittle with low tensile strength and low strain capacity, which hence affect the long-term durability of the structure.
Ashraf S. Ayoub   +19 more
core   +1 more source

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