Results 121 to 130 of about 2,751,834 (354)

Life cycle assessment of a column supported isostatic beam in high-volume fly ash concrete (HVFA concrete) [PDF]

open access: yes, 2010
Nowadays, a lot of research is being conducted on high-volume fly ash (HVFA) concrete. However, a precise quantification of the environmental benefit is almost never provided. To do this correctly, we adopted a life cycle (LCA) approach. By considering a
De Belie, Nele   +3 more
core  

Identifying the Crack Nature Using b-Value Acoustic Emission Signal Analysis [PDF]

open access: yes, 2020
Concrete is an important constituent of structures. The strength performance of the concrete decrease due to several factors. Concrete suffers from deterioration at a later stage.
Mohd Zuki, Sharifah Salwa   +3 more
core  

Initiating Market Formation Through Local Policy Innovation: Plot Handover as a Driver for Circular Construction

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The transition to circular construction suffers from uncertainties related to costs, market realities, supply, regulations and expertise using secondary materials in building projects. Uncertainties are large, and resolving them needs policy interventions.
Erkki‐Jussi Nylén, Tommi Halonen
wiley   +1 more source

Review and prospects of shear test of bolted rock joints

open access: yesDeep Underground Science and Engineering, EarlyView.
The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren   +4 more
wiley   +1 more source

Tensile force and bond stress of longitudinal reinforcemenet in heavily reinforced concrete beam [PDF]

open access: yes, 2011
This dissertation presents an experimental study related to the tensile force and bond stress of longitudinal reinforcement in heavily reinforced concrete beam. The test variables in this study include the ratio of longitudinal and shear reinforcement.
Imran, Nik Farhanim
core  

Seismic response of steel fibre reinforced concrete beam–column joints

open access: yes, 2014
The present research work aims to investigate numerically the behaviour of steel fibre reinforced concrete beam–column joints under seismic action. Both exterior and interior joint types were examined and 3D nonlinear finite element analyses were carried
A. Abbas, S. S. Mohsin, D. Cotsovos
semanticscholar   +1 more source

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

open access: yesDeep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu   +6 more
wiley   +1 more source

Prestress Force Identification for Externally Prestressed Concrete Beam Based on Frequency Equation and Measured Frequencies

open access: yes, 2014
A prestress force identification method for externally prestressed concrete uniform beam based on the frequency equation and the measured frequencies is developed.
Lu Shi, Haoxiang He, Weiming Yan
semanticscholar   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

Analysis of steel reinforced functionally graded concrete beam cross sections

open access: yesMATEC Web of Conferences, 2018
Owing to continuously changing strength moduli properties, functionally graded concrete (FGC) has remarkable advantages over the traditional homogeneous concrete materials regarding cement optimization.
Kiryu Shota   +3 more
doaj   +1 more source

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