scholarly journals Structural behaviour of 3D printed concrete beams with various reinforcement strategies

2021 ◽  
Vol 240 ◽  
pp. 112380
Author(s):  
Lukas Gebhard ◽  
Jaime Mata-Falcón ◽  
Ana Anton ◽  
Benjamin Dillenburger ◽  
Walter Kaufmann
Keyword(s):  
Concrete Beams ◽  
Structural Behaviour ◽  
3D Printed ◽  
Reinforcement Strategies

Structural Behaviour of Green Geopolymer Concrete Beams and Columns Made with Waste Wood Ash a Partial Substitution Binder

2022 ◽  
Vol 1048 ◽  
pp. 333-344
Author(s):  
K. Kumar Arun ◽  
M. Muthukannan ◽  
R. Raja Abinaya ◽  
A. Kumar Suresh
Keyword(s):  
Fly Ash ◽  
Concrete Beams ◽  
Wood Ash ◽  
Partial Substitution ◽  
Polymer Concrete ◽  
Geopolymer Concrete ◽  
Structural Behaviour ◽  
Waste Wood ◽  
Toughness Index ◽  
Load Carrying

On the demand of reducing the global warming due to cement production which is used as main constituent in the production of concrete and minimizing the environmental impact caused by the waste and its disposal methods, this study was aimed. This study looked in to detail insight view on effective utilization of waste wood ash in the production of geopolymer concrete beams and columns to alternate the conventional reinforced concrete elements in construction industry. Waste wood ash is a waste by product produced in the nearby hotel and factories by burning the waste wood collected from timber industries and the ash are thrown in to land which creates a major environmental pollution. Geopolymer is a novel inorganic eco-friendly binding agent derived from alkaline solution that stimulates aluminosilicate source material (such as metakaolin, fly ash and GGBS). In this research, behaviour of beams in deflection, ductility factor, flexural strength and toughness index and columns in load carrying ability, stress strain behaviour and load-deflection behaviours were examined for three types of concretes (30% WWA – 70% Fly ash Geo-polymer concrete, Fly ash Geo-polymer concrete and Reinforced Cement Concrete). The results showed that inclusion of waste wood ash in geopolymer concrete helped in enhancing the load carrying capacity of beam and column by 42% and 28%. Further, the behaviour of structural elements in stiffness, ductility and toughness were also improved with the replacement of waste wood ash.

scholarly journals Analytical modeling of 3D-printed reinforced concrete beams

2020 ◽  
Vol 930 ◽  
pp. 012041
Author(s):  
J Chandra ◽  
P Pudjisuryadi ◽  
A Antoni ◽  
H Wibowo
Keyword(s):  
Reinforced Concrete ◽  
Analytical Modeling ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
3D Printed

Structural behaviour of babadua reinforced concrete beams

1999 ◽  
Vol 13 (4) ◽  
pp. 187-193 ◽  
Author(s):  
Charles K. Kankam ◽  
Brigitte Odum-Ewuakye
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Structural Behaviour

Structural behaviour of pre-damaged reinforced concrete beams strengthened with natural fibre reinforced polymer composites

2020 ◽  
Vol 244 ◽  
pp. 112309 ◽  
Author(s):  
Tidarut Jirawattanasomkul ◽  
Suched Likitlersuang ◽  
Nattamet Wuttiwannasak ◽  
Tamon Ueda ◽  
Dawei Zhang ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Polymer Composites ◽  
Concrete Beams ◽  
Natural Fibre ◽  
Reinforced Concrete Beams ◽  
Structural Behaviour ◽  
Reinforced Polymer ◽  
Fibre Reinforced Polymer

scholarly journals CALCULATING THE CARRYING CAPACITY OF FLEXURAL PRESTRESSED CONCRETE BEAMS WITH NON-METALLIC REINFORCEMENT

2010 ◽  
Vol 2 (6) ◽  
pp. 5-13
Author(s):  
Mantas Atutis
Keyword(s):  
Prestressed Concrete ◽  
Concrete Beams ◽  
Steel Reinforcement ◽  
Elastic Response ◽  
Structural Behaviour ◽  
Moment Capacity ◽  
Calculation Results ◽  
Fibre Reinforced Polymer ◽  
Frp Reinforcement ◽  
Metallic Reinforcement

The article reviews moment resistance design methods of prestressed concrete beams with fibre-reinforced polymer (FRP) reinforcement. FRP tendons exhibit linear elastic response to rupture without yielding and thus failure is expected to be brittle. The structural behaviour of beams prestressed with FRP tendons is different from beams with traditional steel reinforcement. Depending on the reinforcement ratio, the flexural behaviour of the beam can be divided into several groups. The numerical results show that depending on the nature of the element failure, moment resistance calculation results are different by using reviewed methods. It was found, that the use of non-metallic reinforcement in prestressed concrete structures is effective: moment capacity is about 5% higher than that of the beams with conventional steel reinforcement.

scholarly journals State of the Art Review of Reinforcement Strategies and Technologies for 3D Printing of Concrete

Energies ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 360
Author(s):  
Zhengyu Wu ◽  
Ali M. Memari ◽  
Jose P. Duarte
Keyword(s):  
Large Scale ◽  
State Of The Art ◽  
Initial Step ◽  
Preliminary Evaluation ◽  
Conventional Concrete ◽  
Shrinkage Cracking ◽  
Concrete Members ◽  
Cast Concrete ◽  
3D Printed ◽  
Reinforcement Strategies

This state of the art review paper aims to discuss the results of a literature survey on possible ways to reinforce printed concrete based on existing reinforcement strategies. Just as conventional concrete, for 3D printed concrete to be suitable for large-scale construction, reinforcement is needed to increase the tensile capacity of concrete members and reduce temperature and shrinkage cracking. Despite efforts that are currently underway, the development of proper reinforcement suitable for printed concrete is still very active on the research agenda. As an initial step for designing suitable reinforcement for printed concrete, the existing reinforcement methods for printed concrete as well as conventional cast concrete from the literature are reviewed and summarized. Through the preliminary evaluation of the suitability and effectiveness of various reinforcement methods, guidelines are proposed to better understand possible solutions to reinforce printed concrete and inspire new practical ideas to fill the current technology void. The conclusions also include the possible improvements of the existing reinforcement methods to be considered in future applications.

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