Results 1 to 10 of about 70,888 (199)

Modelling formation and development of longitudinal cracks in concrete crossing corroding reinforcement

open access: yesJournal of Civil Engineering and Management, 2002
Tensile stresses in concrete occur under the action of reinforcement rust pressure. When they exceed concrete tensile strength or concrete extension strain exceeds limit value, concrete cracks.
Vidmantas Jokūbaitis, Arvydas Jurkša
doaj   +1 more source

Utilization of recycled and secondary materials in concrete production - LCA

open access: yesActa Polytechnica CTU Proceedings, 2022
The paper describes an assessment of concrete in terms of environmental impacts in relation to the utilization of recycled materials. The article includes a short summary of the literature search on evaluation methods for environmental impacts and on ...
Anna Horáková   +2 more
doaj   +1 more source

Adhesion test – testing of selected adhesives on fired clay

open access: yesActa Polytechnica CTU Proceedings, 2022
The following paper deals with the comparison of adhesion of specimens made of fired clay and selected adhesives. The adhesion was tested on specimens at the age of one, two and three days in order to determine the parameters of young masonry.
Kristýna Richterová   +2 more
doaj   +1 more source

Near-Surface-Mounted CFRP Ropes as External Shear Reinforcement for the Rehabilitation of Substandard RC Joints

open access: yesBuildings
The effectiveness of an innovative retrofit scheme using near-surface-mounted (NSM) X-shaped CFRP ropes for the strengthening of substandard RC beam–column joints was investigated experimentally.
George Kalogeropoulos   +4 more
doaj   +1 more source

Possibilities of using sulphur and plant origin waste for light-weight and thermal insulation construction composites

open access: yesJournal of Environmental Engineering and Landscape Management, 2013
The article notes that not all types of plant origin waste are appropriate for being used as fuel or left for decay. The environment is polluted by noxious gas that is generated in the process of heating or decaying. Sulphur waste is produced at chemical
Gediminas Marčiukaitis   +1 more
doaj   +1 more source

Analysis of Strain State and Cracking of Cocnrete Sleepers

open access: yesJournal of Civil Engineering and Management, 2016
Prestressed concrete sleepers are the most common type of the sleepers used on the railroad. They serve as rail supports and absorb loads induced by trains.
Aidas Jokūbaitis   +2 more
doaj   +1 more source

Architectural and planning solutions for multistorey residential buildings with safety capsules [PDF]

open access: yesE3S Web of Conferences
The purpose of this study is to develop an architectural and construction solution for protecting the civilian population in a multi-story residential building by creating a safe space with instant accessibility.
Bordun Maryna   +4 more
doaj   +1 more source

Hysteresis Behavior of RC Beam–Column Joints of Existing Substandard RC Structures Subjected to Seismic Loading–Experimental and Analytical Investigation

open access: yesBuildings
Four exterior reinforced concrete beam–column joint subassemblages with poor reinforcement details and low-quality materials were constructed and subjected to cyclic lateral deformations under constant axial loading of the columns.
George Kalogeropoulos   +2 more
doaj   +1 more source

Strengthening of Arched Masonry Structures by Additional Reinforcement: Design Approaches and Comparison to Experiments

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2018
The primary aim of this article is to present design approaches for calculating the additional strengthening of masonry arches with the use of the Strut-and-Tie model and applicable standards and their comparison to the experiments.
Martin Zlámal, Petr Štěpánek
doaj   +1 more source

Effect of long‐term loading and fire temperatures on mechanical properties of concrete

open access: yesJournal of Civil Engineering and Management, 2005
During a fire, reinforced concrete structures are exposed to high temperatures and subjected to long‐term action of variable and permanent loads.
Bronius Jonaitis, Vytautas Papinigis
doaj   +1 more source

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