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194 results for “concrete”
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Review ArticleOpen accessEvery word in the titleInvestigating Seismic Behavior of Reinforced Concrete Columns with SFRP Using Finite Element MethodJalil Khani, Mohsen Bozorg, Seyed Mehdi ZahraiCurrently, various methods have been used for repairing and retrofitting reinforced concrete columns including Steel Fiber Reinforced Polymer (SFRP) jackets in order to improve load bearing capacity. However, the enclosure mechanism is less known by consideration of the effects of slender columns which needs much more studies. Avoiding the buckling of a slender Reinforced Concrete (RC) column against the compressive … …American Journal of Engineering and Applied Sciences, Vol. 11, Issue 2 · 12 Jun 2018 · 8,669 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAnalytical Study of Bending Behavior for Concrete Beams with T-Shaped Cross Section using Composite and Steel BarsSeyedeh Zahra Hosseini Ghaziyani, Seyedamin Mostafavian, Meysam Azizpour ChiraniTodays, instead of steel reinforcements, Fiber Reinforced Polymer (FRP) rebars have been using in the reinforced concrete structures. By consideration of different strain-stress behavior between steel and composite material, it is necessary to evaluate the difference of these two materials inside of RC beams. In this research, twelve reinforced concrete T-shape beams were modeled using ABAQUS finite element software. Six … …American Journal of Engineering and Applied Sciences, Vol. 11, Issue 2 · 2 Jun 2018 · 8,535 accessesView PDFCite
Review ArticleOpen accessEvery word in the titleStudies on Environmental Impact Assessment of Reinforced Concrete in Different Life Cycle PhasesJair Frederico Santoro, Moacir KripkaConcrete is one of most used materials in construction and also one of the main responsible for the emission of carbon dioxide, or CO2, in the atmosphere. Thus, in order to study ways to reduce this impact, it is important to evaluate the influence of each raw material of the reinforced concrete, as well as the phases of the life … …International Journal of Structural Glass and Advanced Materials Research, Vol. 1, Issue 2 · 2 Jan 2018 · 8,213 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleProduction of High-Performance Silica Fume ConcreteOmar Asad AhmadThis research aimed to produce concrete that will decrease disadvantages of portland concrete and resolve it. Mixture of Silica fume with concrete in this paper shows that the strength and hardness are increased. In this research the main gools is to compare the deference of compressive strength between standred concrete and concrete with silica fume with different additives ratio and … …American Journal of Applied Sciences, Vol. 14, Issue 11 · 25 Nov 2017 · 8,775 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCracking of Reinforced Recycled Concrete SlabsFlavio Stochino, Luisa Pani, Lorena Francesconi, Fausto MistrettaThe results of an experimental investigation on cracking of fifteen reinforced recycled concrete slabs are presented in this paper. Five different recycled aggregates replacement percentages have been used for different mix design. First, the values of tensile strength, cylindrical compressive strength and modulus of elasticity of the concrete mixes have been determined. Then the deflection-load curve of the simply supported … …International Journal of Structural Glass and Advanced Materials Research, Vol. 1, Issue 1 · 5 Sep 2017 · 10,157 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleExperimental Study of Composite Beams Made of Steel Tubes Filled with Concrete under the Confinement Effect of U-Links and Stud-PlateMoayyad Al-Nasra, Madiha Ammari, Taher Abu-Lebdeh, Abdelqader NajmiConcrete strength improved substantially when lateral confinement stresses are provided. This effect has been exploited in this study in composite beams at the concrete compression zone. New type of confinement is used in this research. The confinement of concrete in the compression zone is accomplished by providing U-links and stud-plate systems. The U-links are steel bars in the shape of … …American Journal of Engineering and Applied Sciences, Vol. 10, Issue 1 · 20 Mar 2017 · 7,259 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleNumerical Simulation of Flexural-tensile Properties of Reinforced Concrete BeamShi Di, Wang Juan, Liu JianjunReinforced concrete is a kind of typical composite and reinforced concrete structure is widely used in the construction of a kind of structure, the flexural-tensile properties is very important for structure design optimization. In this study, the 2 dimensional numerical model of reinforced concrete beam is established by using ANSYS software and the effects of the thickness of the protective … …American Journal of Engineering and Applied Sciences, Vol. 10, Issue 1 · 25 Jan 2017 · 7,249 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffects of Curing Temperature and MMA Content on the Working Life of MMA-Modified Vinyl Ester Polymer ConcreteKi-Bong Choi, Seung-Ho Min, Kyu-Seok YeonThe main purpose of this study is to identify the effects of curing temperature and methyl methacrylate (MMA) content on the working life of vinyl ester polymer concreteusing MMA as a monomer, N,N-dimethyl-p-toluidine (DMP) and methyl ethyl ketone peroxide (MEKPO) as initiators and cobalt naphthenate as a promoter. The results have shown that the working life of vinyl ester polymer … …American Journal of Applied Sciences, Vol. 14, Issue 1 · 23 Jan 2017 · 7,962 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleImpact Behavior of High Strength Concrete Slabs with Pozzolana as Coarse AggregateMahmoud B.A. Alhasanat, Arabi N. Al QadiThis research goal is the adding of pozzolana as rough aggregate in concrete. Pozzolans of Jabl Onyzh have been described as the major supply from Jordan. It is often used in the place of a conservative aggregate in frivolous concrete. A practical examination was carried out on the resistance of Pozzolana Lightweight Concrete (PLWC) with diverse ratios (35 and 50%) … …American Journal of Applied Sciences, Vol. 13, Issue 6 · 14 Jun 2016 · 7,121 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleUsing of Box-Benken Method to Predict the Compressive Strength of Self-Compacting Concrete Containing Wadi Musa Bentonite, JordanArabi N.S. AL Qadi, Mahmoud B.A. ALhasanat, Ahmad AL Dahamsheh, Sleiman AL ZaiydneenThis research presents application of Box-benken design method to develop model for predicting 28 days compressive strength of Self-Compacting Concrete (SCC) with partial replacement of cement with Wadi Musa bentonite, Jordan for which the data of 15 mixtureshave been tested and preparedat the laboratory of AL Hussien Bin Talal University. The use of Bentonite as filler materials in self-compacting concrete … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 2 · 27 May 2016 · 8,182 accessesView PDFCite