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Journal articles on the topic 'Concrete slab'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Bakardzhiev, S. "Study of the behavior of a experimental reinforced concrete slab at different stages of loading from the production of the reinforced concrete slab over it." IOP Conference Series: Materials Science and Engineering 1276, no. 1 (2023): 012024. http://dx.doi.org/10.1088/1757-899x/1276/1/012024.

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Abstract This report examines the behavior of a reinforced concrete slab, part of an experimental reinforced concrete structure, under loads derived from the casting of the formwork system of the subsequent plate and from the laid concrete mix in the slab above it. The deflections in the individual stages were measured with the help of dial gauges. The full strength and deformation characteristics of the concretes used in the construction were researched. The behavior at all stages of loading of the slab was studied, including each phase of formwork of the slab above it and the laying of the c

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2

Mohammed, Bilal Kamal, and Bayan Salim Al-Numan. "Effectiveness of Limestone Powder as a Partial Replacement of Cement on the Punching Shear Behavior of Normal- and High-Strength Concrete Flat Slabs." Sustainability 16, no. 5 (2024): 2151. http://dx.doi.org/10.3390/su16052151.

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The objective of this study is to investigate the performance of normal- and high-strength concretes including limestone powder (LP) through their mechanical properties. Moreover, sustainable flat plates made of these concretes were investigated through their punching strength. For this purpose, two different types of concrete (normal- and high-strength) with various limestone replacement ratios of 0%, 5%, 15%, and 20% by weight were designed. The fresh and hardened characteristics of the mixtures were investigated at various ages. By this means, the experimental behavior of reinforced concret

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3

Wang, Xiao Wei, Wen Ling Tian, Zhi Yuan Huang, Ming Jie Zhou, and Xiao Yan Zhao. "Analysis on Punching Shear Behavior of the Raft Slab Reinforced with Steel Fibers." Key Engineering Materials 400-402 (October 2008): 335–40. http://dx.doi.org/10.4028/www.scientific.net/kem.400-402.335.

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The thickness of the raft slab is determined by punching shear. The raft slab is commonly thick, which causes concrete volume is large. Mass concrete can bring disadvantage to the foundation. In order to increase the bearing capacity and reduce the thickness, it is suggested that the raft slab to be reinforced by steel fibers. There are five groups of specimens in this paper. S1 is the common reinforced concrete slab. S2 and S3 are concrete slabs reinforced by steel fibers broadcasted layer by layer when casting specimen. S4 and S5 are concrete slabs reinforced by steel fibers mixed homogeneou

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4

Galishnikova, Vera V., Alireza Heidari, Paschal C. Chiadighikaobi, Adegoke Adedapo Muritala, and Dafe Aniekan Emiri. "Ductility and flexure of lightweight expanded clay basalt fiber reinforced concrete slab." Structural Mechanics of Engineering Constructions and Buildings 17, no. 1 (2021): 74–81. http://dx.doi.org/10.22363/1815-5235-2021-17-1-74-81.

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Relevance. The load on a reinforced concrete slab with high strength lightweight aggregate concrete leads to increased brittleness and contributes to large deflection or flexure of slabs. The addition of fibers to the concrete mix can improve its mechanical properties including flexure, deformation, toughness, ductility, and cracks. The aims of this work are to investigate the flexure and ductility of lightweight expanded clay concrete slabs reinforced with basalt fiber polymers, and to check the effects of basalt fiber mesh on the ductility and flexure. Methods. The ductility and flexural/def

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5

Wang, Lei, Shihua Zhou, Yan Shi, et al. "The Influence of Fly Ash Dosages on the Permeability, Pore Structure and Fractal Features of Face Slab Concrete." Fractal and Fractional 6, no. 9 (2022): 476. http://dx.doi.org/10.3390/fractalfract6090476.

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Concrete-face slabs are the primary anti-permeability structures of the concrete-face rockfill dam (CFRD), and the resistance of face slab concrete to permeability is the key factor affecting the operation and safety of CFRDs. Herein, the influences of five fly ash dosages (namely 10%, 20%, 30%, 40% and 50%) on the permeability property of face slab concretes were investigated. Moreover, the difference in the permeability caused by the fly ash dosage variations is revealed in terms of the pore structure and fractal theory. The results illustrate that: (1) The inclusion of 10–50% fly ash lowere

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6

Wang, Lei, and Hong Ya Zhang. "Summary of Study on Composite Concrete Slabs." Applied Mechanics and Materials 351-352 (August 2013): 695–98. http://dx.doi.org/10.4028/www.scientific.net/amm.351-352.695.

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Reinforced Concrete Slab is one of the important types of composite structure, About the concrete laminated slab of the research and the engineering application are summarized, Point out that the characteristics of Composite Concrete Slabs, the application and development of the laminated slab of recent advances at home and abroad, and look into the future of the Composite Concrete Slabs research.

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7

Muhamad Khairussaleh, N. A., R. Omar, S. Mat Aris, M. F. Mohd Nor, M. A. Mohd Saidi, and N. M. A. Nik Mohd Mahari. "Flexural Behaviour of the Two-Way Spanning Reinforced Concrete Slab Using Spherical Plastic Bubble Balls." IOP Conference Series: Earth and Environmental Science 1140, no. 1 (2023): 012016. http://dx.doi.org/10.1088/1755-1315/1140/1/012016.

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Abstract The use of conventional reinforced concrete in the construction industry increases each year, especially in developing countries. However, the concrete content, particularly cement production contributed to the greenhouse gas emission subsequently increase to climate change. Thus, the reinforced concrete slab containing high-density polyethene (HDPE) hollow spherical plastic bubble balls also known as bubble deck slabs were introduced for sustainable construction. This type of slab forms a slab that has less concrete volume compared to the normal solid reinforced concrete slab. Althou

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8

Abdul Hamid, Mohd Samsudin, Muhammad Zaim Zulkiple, Hafizah Muhammad Azlan, and Noor Syafeekha Mohamad Sakdun. "Structural Performance of Reinforced Concrete Double Layer Bamboo Bubble Slab Under Uniformly Distributed Load." ESTEEM Academic Journal 19, September (2023): 11–22. http://dx.doi.org/10.24191/esteem.v19iseptember.21179.

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The architectural use areas in the structure are formed by reinforced concrete (RC) slabs, which transport vertical loads to the beams, columns, load-bearing walls, and shear walls. The slab is an important structural member of reinforced concrete building structures and concrete-intensive parts of structural members. . The slab deflects significantly when the load acting on the slab or the clear span between columns is large. As a result, the slab's thickness increases to accommodate the load received. Since this slab's self-weight increases as the thickness increases, the slabs get heavier a

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9

Zhang, Jing Shu, Huan Huan Nie, Yuan Long Yang, and Yuan Yao. "Research and Application of Pre-Stressed Concrete Composite Slabs." Applied Mechanics and Materials 166-169 (May 2012): 131–39. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.131.

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The pre-stressed concrete composite slab, which combines the advantages of cast-in-place slabs and precast slabs, has promising development prospects. In the paper, according to structural integrity, bond performance, sound insulation, thermal preservation and construction techniques, four categories composite slab, such as the composite slab with flat bottom panel (including the composite slab with bar truss reinforced precast concrete bottom panel), the concrete composite slab with precast ribbed panel, the composite slab with hollow bottom panel and the composite slab with sandwich bottom p

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10

Mao, Ming Jie, and Qiu Ning Yang. "Study on Prestressed Concrete Slabs with Lightweight Aggregate." Advanced Materials Research 450-451 (January 2012): 338–42. http://dx.doi.org/10.4028/www.scientific.net/amr.450-451.338.

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A lightweight aggregate with low permeability was employed in the concrete slab; and the strength of the slab is mainly discussed. The purpose of present study is to evaluate experimentally the punching shear strength of lightweight concrete slab, and to propose the punching shear strength equation for the slab with lightweight aggregate concrete. The applicability of the proposed equation to the both reinforced concrete and pre-stressed concrete slabs with lightweight aggregate concrete.

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11

Khairussaleh, Nor Ashikin Muhammad, Ng Kah Hoe, and Gerald A. R. Parke. "Effect of Area Loading on Flexural Performance of Bubble Deck Slab." Key Engineering Materials 912 (March 4, 2022): 41–54. http://dx.doi.org/10.4028/p-51xde0.

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Reinforced bubble deck slab is a structural slab that contains high-density polyethene (HDPE) hollow spherical plastic bubble balls forming a slab with less concrete volume compared to the normal reinforced concrete slab. Reducing certain volumes of concrete from 30 to 50% will affect the performance of the slab structure in particular the flexural and shear capacity. Thus, in this research the effect of area loading on the flexural performance of bubble deck slabs is investigated by considering the slabs to be one-way supported slabs. The square deck slabs used were 1200mm by 1200mm for the w

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12

Ahmad, Omar. "Financial comparative study between post-tensioned and reinforced concrete flat slab." International Journal of Advanced Engineering, Sciences and Applications 3, no. 1 (2022): 1–6. http://dx.doi.org/10.47346/ijaesa.v3i1.67.

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As for today, post-tensioned slabs gained much popularity and started to be widely used among construction companies all around the world. As we refer to the structural members, we acknowledge that the price of the slab is much higher in comparison to the other structural members like columns, beams, or foundation in accordance to the amount of steel and concrete in it. A comparative study has been done between post-tensioned, and reinforced concrete flat slab to compare how much each slab cost. It describes that since the post-tension slabs are thinner and it provides fewer columns, so the am

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13

Makki, Ragheed, Haider Al-Katib, and Ahmed Alalikhan. "Load-defl ection behaviour of hybrid concrete flat slab." Przegląd Naukowy Inżynieria i Kształtowanie Środowiska 28, no. 4 (2019): 516–25. http://dx.doi.org/10.22630/pniks.2019.28.4.47.

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Due to the important role of high strength concrete in the structural systems, present work focuses on the use of this material as a strengthening technique incorporating with the normal strength concrete in flat slab system. Eight simply supported flat slab models with (1,000 × 1,000 × 120 mm) dimensions are investigated based on three groups including normal strength concrete and high strength concrete. The first group represents models containing of two flat slabs fully with one type of concrete; NSC and HSC as control flat slab. The second and third groups consist of six flat slabs as hybr

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14

Ali H. Aziz. "PUNCHING SHEAR AND FLEXURAL STRENGTHS OF SELF COMPACTED CONCRETE NON-RECTANGULAR SHAPED FLAT PLATE SLABS." Diyala Journal of Engineering Sciences 4, no. 1 (2011): 95–107. http://dx.doi.org/10.24237/djes.2011.04107.

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This study is conducted to investigate experimentally the punching shear and flexural strengths of reinforced concrete flat plate slabs made with Non-Rectangular (triangular and trapezoidal) shaped. Four test self-compacting concrete slab groups were manufactured, each of which consisted of three slab specimens identical in size and shape but different in constituent’s properties. All slabs are simply supported along the all edges and subjected to single point load applied at the center of gravity of each slab. Experimental results shows that the use of self compacting concrete improves

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15

Renkas, A. A. "FIRE RESISTANCE PROVIDING OF HOLLOW‐CORE CONCRETE SLABS USING SHEET BUILDING MATERIALS." Fire Safety, no. 34 (July 19, 2019): 72–77. http://dx.doi.org/10.32447/20786662.34.2019.12.

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Introduction. This paper deals with the analysis of world experience in fire resistance providing of hollow‐core concrete slabs. To protect concrete structures are used many structural applications: thermal coatings and materials. The research first analyzes main methods and hypothesis using to make temperature analysis of solution fire resistance of concrete structures. Problem of making temperature analysis of hollow‐core concrete slabs are nonlinear thermal material properties and radiation heat transfer in the hollow-cores. The aim of this paper is to establish the temperature distribution

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16

Surianinov, Mykola, Stepan Neutov, Iryna Korneieva, and Maryna Sydorchuk. "Study and Comparison of Characteristics of Models of Hollow-Core Slabs, Reinforced Concrete and Steel-Fiber Concrete." Key Engineering Materials 864 (September 2020): 9–18. http://dx.doi.org/10.4028/www.scientific.net/kem.864.9.

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Two models of hollow core slabs were tested: reinforced concrete and steel fiber concrete. When designing slab models, the proportions of full-sized structures were preserved for the further possibility of correct data comparison. As a result of testing models of hollow core slabs, it was found that the bearing capacity of a slab with combined reinforcement is 24% higher than that of reinforced concrete, the deflection is 36% less, and the crack resistance is 18% higher. The use of steel fiber made it possible to avoid the brittle fracture of a steel fiber reinforced concrete slab, which was o

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17

Athare, Shubham, and Prof A. U. Bhalerao. "Cost Analysis of Solid Slab and Voided Slab - A Review." International Journal for Research in Applied Science and Engineering Technology 11, no. 6 (2023): 2350–52. http://dx.doi.org/10.22214/ijraset.2023.54054.

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Abstract: A novel and inventive structural system for concrete slabs, called plastic voided slabs, has been developed. This system incorporates plastic voids within the reinforced concrete slab, resulting in a lighter self-weight for the structure without compromising its load-bearing capacity compared to a solid slab. This study aims to compare the design process of plastic voided slabs with that of reinforced concrete solid flat slabs. Specifically, the design of typical bays with identical thickness is analyzed to assess the differences between the two systems.

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18

CAMPOS, C. O., L. M. TRAUTWEIN, R. B. GOMES, and G. MELO. "Experimental study of solid RC slabs strengthened on the upper surface." Revista IBRACON de Estruturas e Materiais 11, no. 2 (2018): 255–78. http://dx.doi.org/10.1590/s1983-41952018000200003.

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Abstract The current study presents the results of tests conducted in 5 reinforced concrete slabs (415 cm x 415 cm x 7 cm) in order to experimentally check the possibility of reinforcing their upper surface, as well as to assess the adhesion between the old and the reinforcing concrete layers in the slab. The main variables were the concrete and reinforcement strength deficiencies. Reference slab “L1” was tested until reaching the failure load, whereas the others were tested until reaching certain load limit, reinforced and retested until reaching the failure load. All slabs failed under bendi

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19

Abdullah, Mazin Diwan, and Khamail Abdul-Mahdi Mosheer. "Effect of Stirrups on the Behavior of Semi-Precast Concrete Slabs." Civil Engineering Journal 8, no. 8 (2022): 1653–64. http://dx.doi.org/10.28991/cej-2022-08-08-09.

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A semi-slab of precast concrete (or half-slab) is a structural system that consists of concrete at the bottom half of a slab and concrete cast in situ at the top. To avoid traditional formwork and minimize the bottom half of the slab, this section can function as formwork and reduce the thickness of precast slabs, which makes their transportation easy. The interface between precast and overtopping concrete is effective for the slab system's performance. To improve the half-slab floor system, it is needed to have a shear connector (stirrups). Therefore, to better understand the behavior of this

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20

Alfeehan, Ashraf Abdulhadi, Hassan Issa Abdulkareem, and Shahad Hameed Mutashar. "Flexural behavior of sustainable reactive powder concrete bubbled slab flooring elements." Challenge Journal of Structural Mechanics 3, no. 2 (2017): 81. http://dx.doi.org/10.20528/cjsmec.2017.04.010.

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Voided slabs are reinforced concrete slabs in which voids allow to reduce the amount of concrete. The bubbled deck slab is a new and sustainable biaxial floor system to be used as a self-supporting concrete floor. The use of voided slabs leads to decrease the consumption of materials and improve the insulation properties for enhancing the objectives of sustainability. This study presents an investigation into the flexural behavior of sustainable Reactive Powder Concrete RPC bubbled slab flooring elements. Six one-way slabs were cast and tested up to the failure. The adopted variables in this s

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21

Sun, Jinkun, Rita Yi Man Li, Tao Jiao, Senping Wang, Chenxi Deng, and Liyun Zeng. "Research on the Development and Joint Improvement of Ceramsite Lightweight High-Titanium Heavy Slag Concrete Precast Composite Slab." Buildings 13, no. 1 (2022): 3. http://dx.doi.org/10.3390/buildings13010003.

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Despite the continuous improvement in the research and development of concrete precast composite slab technology, problems like easy cracks and excessive weight at the joints remain. In this study, high-titanium heavy slag was mixed with different kinds of ceramsite to prepare ceramsite lightweight high-titanium heavy slag concrete. The joint of the composite slab was optimized to develop a novel ceramsite lightweight high-titanium heavy slag concrete precast composite slab, hereinafter referred to as “CLHCPCS”. Two CLHCPCS and one ordinary concrete composite slab were prepared. This study ana

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22

Pang, Rui, Yibo Zhang, Longji Dang, Lanbo Zhang, and Shuting Liang. "Experimental and numerical investigation on the vertical bearing behavior of discrete connected new-type precast reinforced concrete floor system." Advances in Structural Engineering 23, no. 11 (2020): 2276–91. http://dx.doi.org/10.1177/1369433220911141.

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This article proposes a new type of discrete connected precast reinforced concrete diaphragm floor system that consists of precast flat slabs and slab joint connectors. An experimental investigation of discrete connected new-type precast reinforced concrete diaphragm under a vertical distributed static load was conducted, and the effect of slab joint connectors on the load-bearing capacity was evaluated. Then, a finite element analysis of discrete connected new-type precast reinforced concrete diaphragm, precast reinforced concrete floors without slab connectors, and cast-in-situ reinforced co

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23

Xin, Gongfeng, Guanxu Long, Jizhi Zhao, and Zejun Zhang. "The Effect of Steel Trusses on the Mechanical Performance of Laminated Precast Slabs." Buildings 13, no. 7 (2023): 1653. http://dx.doi.org/10.3390/buildings13071653.

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Laminated concrete slabs can deliver desirable structural properties and effectively improve the speed of construction. According to their basic specifications, laminated concrete slabs comprise a 60 mm precast concrete slab and a 70 mm concrete layer cast in situ, with a steel truss bar at a height of 80 mm. This paper studies the effects of the steel truss bar on the mechanical properties of precast slabs. A simple but accurate method is proposed for calculating the stiffness of precast slabs. The test results show that the steel truss bar has a limited effect on the stiffness of the precast

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24

Korneieva, I., D. Kirichenko, and O. Shyliaiev. "EXPERIMENTAL STUDIES OF DEFORMABILITY AND FRACTURE RESISTANCE OF AIRFIELD SLABS ON MODELS." Mechanics And Mathematical Methods 3, no. 2 (2021): 64–74. http://dx.doi.org/10.31650/2618-0650-2021-3-2-64-74.

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The results of experimental studies of deformability and crack resistance of models of aerodrome slabs made of reinforced concrete and steel-fiber concrete, made on the basis of serial slab PAG-18 taking into account the scale factor, are presented. Two series of slabs were tested - two models of reinforced concrete and two models with one-percent dispersed reinforcement. The load was applied in steps, the instrument readings were recorded twice at each step and the crack opening width was measured starting from the moment of the first crack formation. Dial gauges, deflectometer and microscope

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25

Muhammad Khairussaleh, Nor Ashikin, Ng Kah Hoe, Roslina Omar, and Gerald A. R. Parke. "The Effect of Area Loading and Punching Shear on the Reinforced Concrete Slab Containing Spherical Plastic Bubble Balls." Key Engineering Materials 912 (March 4, 2022): 211–23. http://dx.doi.org/10.4028/p-m89355.

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The reinforced bubble deck slab or BubbleDeck is a unique system that improves the building design and performance of structures. This slab structure is a reinforced concrete structure that contains high-density polyethene (HDPE) hollow spherical plastic bubble balls with less concrete volume compared to a normal reinforced concrete slab. The system can facilitate up to a 50% longer span compared to a conventional reinforced concrete solid slab. But, eliminating the deadweight concrete may affect the actual performance of the slab structure such as its flexural and shear capacity. Thus, this p

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26

Li, Bing, Zhengshang Li, Zhijun Chen, Zhoulin Yang, and Yang Zhang. "Experimental Study on the Structural Performance of Reinforced Truss Concrete Composite Slabs during and after Fire." Buildings 13, no. 7 (2023): 1615. http://dx.doi.org/10.3390/buildings13071615.

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Standard fire resistance tests and post-fire tests on residual mechanical properties were carried out on two four-edge simply supported reinforced truss concrete two-way composite slabs with wide seam splicing (“integral seam”) and close seam splicing (“separated seam”), and the effects of the different splicing forms on the mechanical properties of the reinforced truss concrete composite slabs during and after exposure to high temperatures were explored. The results indicate that there are significant differences in terms of crack developments, moisture loss times on the slab surface, spallin

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27

Han, Zebin, Wenjun Qu, and Peng Zhu. "Research on Hybrid FRP–Steel-Reinforced Concrete Slabs under Blast Load." Buildings 13, no. 4 (2023): 1058. http://dx.doi.org/10.3390/buildings13041058.

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The service environment of civil air defense engineering structures is relatively harsh, and the corrosion of steel bars is the main reason for reducing the durability of concrete structures in civil air defense engineering. A hybrid FRP–steel-reinforced concrete (hybrid-RC) structure has excellent durability. Therefore, it is a good choice to apply hybrid-RC to civil air defense engineering structures. In order to study the blast resistance of hybrid-RC structures, close blast and contact blast experiments were carried out on hybrid-RC slabs, steel-reinforced concrete (SRC) slabs and GFRP-rei

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28

Flores Bastidas, Camilo, Constanza Lucia Flores Bastidas, Jun Ichiro Giorgos Tsutsumi, and Caori Patricia Takeuchi. "Approach to the Load Resistance in Two Kinds of Bamboo Reinforced Concrete Slab." Advanced Materials Research 261-263 (May 2011): 459–63. http://dx.doi.org/10.4028/www.scientific.net/amr.261-263.459.

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Steel reinforced concrete is generally used in houses structure elements. However bamboo strength properties similarly to the wood, make it an alternative concrete composite material. Load test were performed in two kinds of bamboo guadua concrete reinforced composite slabs. During the tests the slabs functioned as domestic roofing-flooring in standing houses, the slab systems tested were bamboo stem covered slab and stem free slab. Two different tests were designed to measure the deflection in the middle of the composite slab and along a single bamboo stem. In three different slab sizes and a

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29

Park, Hae-Won, Dong-Hyuk Kim, Cha-Sang Shim, and Jin-Hoon Jeong. "Behavior of Airport Concrete Pavement Slabs Exposed to Environmental Loadings." Applied Sciences 10, no. 7 (2020): 2618. http://dx.doi.org/10.3390/app10072618.

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The behavior of pavement slabs was measured over a two-year period from the placement of concrete at a construction site in Incheon International Airport using temperature sensors and strain gauges. The influence of various environmental factors on the slab behavior was investigated by collecting weather data. Laboratory tests were conducted to obtain the material properties of the concrete slab, such as the elastic modulus, Poisson’s ratio, and modulus of rupture. The time of final setting of the concrete slab at the zero point of the strain gauges was determined according to the position and

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Kigoye, Eriya, and Michael Kyakula. "Load Deflection Relationship of a Solid Slab under the Action of Construction Loads." Advances in Civil Engineering 2022 (March 9, 2022): 1–16. http://dx.doi.org/10.1155/2022/3125920.

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Over the past decades, there has been a tremendous improvement in the concrete placement technology in Uganda. The methods have moved from being manual to the use of concrete pumps. A concrete pump is capable of pumping high volumes of concrete per minute. This implies that for small volume slabs before the setting of concrete, the whole weight of the fresh concrete of the upper slab, formwork, and props is transferred to the lower supporting slab. During construction, slabs are stacked with materials like bricks, blocks, sand, and aggregates. Construction loads such as block loads and loads d

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31

Du, Hao, Jiangtao Mei, Weijie Fu, and Xiamin Hu. "Experimental research on bending performance of wood-concrete composite slab with screw connections." BioResources 19, no. 1 (2024): 1558–70. http://dx.doi.org/10.15376/biores.19.1.1558-1570.

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The existing research primarily focuses on wood-concrete composite beams, with limited studies on the bending performance and effective width of wood-concrete composite slabs. A full-scale composite slab with screw connections was constructed and subjected to static load testing. The study extensively investigated the ultimate bearing capacity, load-deflection curves, interface slips, strain distributions of cross-section and effective width of the wood-concrete composite slab. It was found that the failure mechanism of the composite slab involved both bending and tensile failure of the wood b

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Batrakova, Angelika, Yevhen Dorozhko, Sergey Urdzik, and Iryna Shelkova. "Analysis of the stress-deformed state of the structure of road clothing depending on the location of the load relative to the edges of the combined slab." Bulletin of Kharkov National Automobile and Highway University, no. 106 (September 19, 2024): 102. http://dx.doi.org/10.30977/bul.2219-5548.2024.106.0.102.

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Abstract. Problem. Cement-concrete coatings are characterized by the complexity of repair work, therefore, for their repair or new construction, it is advisable to use asphalt-concrete coating. This constructive solution during the repair of cement concrete slabs helps to improve their technical and operational condition since the asphalt concrete layer performs the function of a protective or wearresistant layer on cement concrete slabs. The operating conditions of asphalt concrete layers on cement concrete slabs are significantly different from those typical for other structural solutions. T

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33

Priganc, Sergej. "The crack formation of concrete slabs embedded along two sides with minimum area of steel reinforcement." MATEC Web of Conferences 310 (2020): 00059. http://dx.doi.org/10.1051/matecconf/202031000059.

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The article deals with crack formation of concrete slabs embedded along two sides, after monitoring the shrinking of concrete slabs under laboratory conditions. The paper presents result of laboratory test focused on monitoring the crack formation of concrete slabs. The concrete slabs were reinforced asymmetrically only on one side. The slabs were loaded by four-point bending. The formation and development of cracks was monitored during loading of concrete slabs. The deflections on the concrete slab were measured and the formation of cracks and the width of the cracks were monitored. The posit

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34

Duan, Ning, and Jiwen Zhang. "Comparison of Punching Shear Behaviour of Two-Way Concrete Slab Reinforced with CFRP Grid and Steel Bars." Journal of Physics: Conference Series 2463, no. 1 (2023): 012013. http://dx.doi.org/10.1088/1742-6596/2463/1/012013.

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Abstract Two punching shear failure tests of two-way concrete slab reinforced by CFRP grid and HRB 400 steel were studied in this paper. The reinforcement ratio of slab reinforced with CFRP grid and HRB400 is 0.33% and 0.37 respectively. The upper and lower surfaces of the concrete slab’s tensile and compressive strains, the reinforcement strains, the load deflection of the slabs, and the applied load value were analyzed. The results show that under approximately the same reinforcement ratio, the concrete slab reinforced with CFRP grid has higher bearing capacity. Both slab failure formed with

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35

Yin, Feng, Sili Li, Bo Tian, and Kai Min Niu. "Review of Push-Off Tests for Base Friction of Cement Concrete Pavement." Advanced Materials Research 857 (December 2013): 190–99. http://dx.doi.org/10.4028/www.scientific.net/amr.857.190.

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Concrete pavement slabs experience volume change due to the variation of temperature and moisture level. The frictional drag acting on the bottom of slab due to the base friction is in the opposite direction of horizontal slab displacement, and resist against the horizontal slab movements. The magnitude of frictional force and horizontal slab displacement has interdependent relationship. In the present study, the interface friction of typical concrete pavements was evaluated by performing a number of push-off tests. In this paper, reviews of classical friction theory and friction characteristi

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Toledo, William, Leticia Davila, Ahmed Al-Basha, Craig Newtson, and Brad Weldon. "Shrinkage in Ultra-High Performance Concrete Overlays on Concrete Bridge Decks." MATEC Web of Conferences 271 (2019): 07008. http://dx.doi.org/10.1051/matecconf/201927107008.

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This paper investigates the shrinkage and thermal effects of an ultra-high performance concrete (UHPC) mixture proposed for use as an overlay material for concrete bridge decks. In this study, early-age and longer-term shrinkage tests were performed on the locally produced UHPC. Thermal and shrinkage effects in normal strength concrete slabs overlaid with UHPC were also observed. Early-age shrinkage testing showed that approximately 55% of the strain occurred in the plastic state and may not contribute to bond stresses since the elastic modulus of the UHPC should be small at such early ages. T

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Kataoka, Shinnosuke, Masuhiro Beppu, Hiroyoshi Ichino, Tatsuya Mase, Tatsuya Nakada, and Ryo Matsuzawa. "Failure behavior of reinforced concrete slabs subjected to moderate-velocity impact by a steel projectile." International Journal of Protective Structures 8, no. 3 (2017): 384–406. http://dx.doi.org/10.1177/2041419617721550.

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This study investigates the failure characteristics of reinforced concrete slabs subjected to moderate-velocity impacts by conducting impact tests and numerical simulations. In a series of tests, a spherical steel projectile with a mass of 8.3 kg and a diameter of 80 mm is collided with an reinforced concrete slab at an impact velocity of 65–90 m/s. To investigate the failure characteristics of the reinforced concrete slab, impact motion of the projectile, reaction force, and strain–time history on the back surface and reinforcing bars of the reinforced concrete slab were measured. Failure mod

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Unamba, K. U. "Probabilistic Assessment of Sandwiched Concrete Slabs in Deflection." International Journal for Research in Applied Science and Engineering Technology 9, no. 9 (2021): 2052–58. http://dx.doi.org/10.22214/ijraset.2021.38248.

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Abstract: This study presents a probabilistic evaluation of concrete sand-witched hollow core slabs in accordance with the design requirements of BS8110 (1985; 1997) and Eurocode 2 (2008). The First Order Reliability Method (FORM) was used in computing the probability of failure. For the deflection failure, the effect of varying the load ratio and the breadth of slab on the reliability analysis were carried out at the following values of concrete strengths ݂ܿu: 25N/mm2 , 30 N/mm2 , 40 N/mm2 , 50 N/mm2 . The results indicate that deflection characteristics of the slab are directly affected by t

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Chen, Yung Tsang. "An Experimental Study on the use of Fiber-Reinforced Concrete in Bridge Approach Slabs." Applied Mechanics and Materials 361-363 (August 2013): 1217–22. http://dx.doi.org/10.4028/www.scientific.net/amm.361-363.1217.

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Fiber-reinforced concrete is well known for crack control by bridging cracks in the concrete. Short, discontinuous fibers are added into plain concrete to provide post-cracking ductility to the fiber-reinforced concrete. Although fiber-reinforced concrete has been used in various civil engineering applications, the practical application of fiber-reinforced concrete in bridge approach slabs is rarely found. In this paper, steel fibers, serving as macro-fibers, and polyvinyl alcohol fibers, serving as micro-fibers, were added to the approach slab concrete for crack control purpose. This paper de

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Gu, Song, Jiachen Zhao, Jinxing Li, Feng Peng, Chao Kong, and Liqiong Yang. "Application of Fractal Theory to the Analysis of Failure Characteristics of Low-Velocity-Impact Concrete Slabs." Buildings 13, no. 9 (2023): 2190. http://dx.doi.org/10.3390/buildings13092190.

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The fractal characteristics of low-velocity-impact concrete slabs were studied using fractal theory, and the fractal dimension value of cracks of each concrete specimen plate was calculated using box dimension as the basic principle and digital image analysis technology in conjunction with MATLAB software (R2021b) calculation functions. The energy dissipation of concrete slabs during low-velocity impact is calculated using the elastic sheet theory. The calculation results are realistic, and the energy conversion of concrete slabs during low-velocity impact is analyzed based on these results. T

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Amer M. Ibrahim, Nazar K. Ali, and Wissam D. Salman. "Flexural Capacities of Reinforced Concrete Two-Way Bubbledeck Slabs of Plastic Spherical Voids." Diyala Journal of Engineering Sciences 6, no. 2 (2013): 9–20. http://dx.doi.org/10.24237/djes.2013.06202.

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This paper presents the flexural capacities of R.C two way hollow slabs of plastic spherical voids, also known as BubbleDeck slab system. Recently, various types of slab systems which can reduce the self-weight of slabs have been studied as the height and width of building structures rapidly increase (1). A biaxial hollow slab system is widely known as one of the effective slab systems which can reduce the self-weight of slabs (1). A BubbleDeck slab has a two-dimensional arrangement of voids within the slabs to reduce self-weight (2). The behavior of BubbleDeck slabs is influenced by the ratio

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Abdulaziz, I. Almuaybid, Abdulghafour Abdulrazak, and A. Mlybari Ehab. "Cost Optimization of Solid Slabs using the Iteration Method." Indian Journal of Science and Technology 16, no. 2 (2023): 123–32. https://doi.org/10.17485/IJST/v16i2.1905.

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ABSTRACT <strong>Objectives:</strong> The research aims at minimizing construction projects’ costs, including solid slab materials (steel and concrete), by analyzing the slab’s parameters and optimizing the slab design using the iteration method. <strong>Methods:</strong> Research data were given as thirty solid slabs. Excel spreadsheets were made according to the Saudi Building Code specifications to optimize the slab design automatically and determine the minimum amount of concrete and steel. Plugging of the given data was done in an iterated method while assuring

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Eratodi, I. Gusti Lanang Bagus, Ali Awaludin, Ay Lie Han, and Andreas Triwiyono. "Evaluation and Study of Prestressed Slab Structure Precast Modular Concrete." MEDIA KOMUNIKASI TEKNIK SIPIL 26, no. 1 (2020): 44–51. http://dx.doi.org/10.14710/mkts.v26i1.27765.

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Prestressed precast modular concrete slabs function rigid pavement, supporting vehicle loads above it on subgrade with relatively low bearing capacity. This slab measures 2000 x 850 x 150 mm3 of regular reinforced concrete (old production) or prestressed concrete (new production) quality K-500. After several times of use, damage occurs mainly at the end of the slab in the form of spalling. The objectives of the study and evaluation were: (1) observing damage; (2) material quality data; (3) numerical modeling by taking into account material properties, loading and soil conditions; and (4) provi

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Dadzie, Donald Kwabena, and A. K. Kaliluthin. "Implications of Palm Kernel Shell-Filled Plastic Bottles on the Structural Behavior of Concrete Slab." Civil Engineering Journal 9, no. 3 (2023): 731–51. http://dx.doi.org/10.28991/cej-2023-09-03-016.

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The implications of palm kernel shell (PKS)-filled plastic bottles on the structural behaviour of concrete slabs were carried out by comparing the flexural performance of conventional solid concrete slabs to concrete slabs incorporated with plastic bottles filled with palm kernel shells and placed vertically, horizontally, and diagonally at the neutral axis of the slab as per Bubble Deck Slab technology. One-way slab specimens of size 700 × 300 × 150 mm thick were produced and subjected to a four-point flexural load test. Findings from the study indicated that: (1) The PKS-filled bottle slabs

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Dadzie, Donald Kwabena, and A. K. Kaliluthin. "Sustainability Performance of Voided Concrete Slab Using Waste Plastic Bottles." Civil Engineering Journal 8, no. 11 (2022): 2490–510. http://dx.doi.org/10.28991/cej-2022-08-11-09.

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The present study is aimed at investigating the cost assessment of incorporating waste plastic bottles in the manufacture of voided concrete slabs; assessing the depth ratio vis-à-vis the cost reduction of incorporating waste plastic bottles in the manufacture of voided concrete slabs; assessing the energy consumption and CO2 emission obtained by incorporating waste plastic bottles in the manufacture of voided concrete slabs; and evaluating the impact of the depth ratio on embodied energy consumption and CO2 emission. The study was conducted on five types of slab specimens made: (1) convention

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Xu, Xiaoqing, and Yuqing Liu. "Load Capacities of Steel and Concrete Composite Bridge Deck Slab with Haunch." Advances in Civil Engineering 2017 (2017): 1–15. http://dx.doi.org/10.1155/2017/3295303.

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An innovative steel and concrete composite bridge deck slab using bent bars and epoxy as shear connectors was proposed. Four slab specimens with different types of concrete were fabricated and tested to study the load capacities of positive and negative moment regions of the slabs. The cracking and ultimate loads of the specimens were recorded and compared with the results calculated through the reinforced concrete theory and with the design load of the bridge deck slab. It was found that reinforced concrete theory can generally be applied for the proposed slab as well. The effectiveness of th

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Yaagoob, Ali H., and Ibrahem S. Harba. "Behavior of Self Compacting Reinforced Concrete One Way Bubble Deck Slab." Al-Nahrain Journal for Engineering Sciences 23, no. 1 (2020): 1–11. http://dx.doi.org/10.29194/njes.23010001.

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Reinforced concrete slab with plastic voids (Bubbled Deck system) is a new type of slabs which has two-dimensional arrangement of voids within the slab that is developed to decrease the slab self-weight while maintaining approximately the same load carrying capacity as compared with the solid slabs. Plastic voided slabs have the ability to reduce concrete amount by about 30 percent and this reduction is so important in terms of cost saving and enhancement the structural performance. In this research paper investigation is carried out to study the shear strength behavior of one-way bubble deck

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Karadis, Alper, Kabil Cetin, Taha Yasin Altıok, and Ali Demir. "Investigation bending behaviors of the slabs with glass fiber reinforced polymer composite and steel bars." Journal of Structural Engineering & Applied Mechanics 4, no. 4 (2021): 227–38. http://dx.doi.org/10.31462/jseam.2021.04227238.

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Glass fiber reinforced polymer (GFRP) composites have been frequently used in engineering applications in recent years. GFRP composites produced by using glass fiber and epoxy resin have significant advantages such as high strength, lightness, and resistance against corrosion. However, GFRP composites exhibit a more brittle behavior than steel bars. This study aims to investigate both the experimental and numerical bending behavior of slabs with GFRP bars, steel bars, and polypropylene fiber. Within the scope of experimental studies, 5 slabs were built. Two slabs called SS-1 and SS-2 have only

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Oukaili, Nazar, and Hassan Hamoudi Yasseen. "Experimental Investigations on the Strength and Serviceability of Biaxial Hollow Concrete Slabs." Journal of Engineering 22, no. 11 (2016): 36–54. http://dx.doi.org/10.31026/j.eng.2016.11.03.

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Biaxial hollow slab is a reinforced concrete slab system with a grid of internal spherical voids included to reduce the self-weight. This paper presents an experimental study of behavior of one-way prestressed concrete bubbled slabs. Twelve full-scale one-way concrete slabs of (3000mm) length with rectangular cross-sectional area of (460mm) width and (150mm) depth. Different parameters like type of specimen (solid or bubbled slabs), type of reinforcement (normal or prestress), range of PPR and diameter of plastic spheres (100 or 120mm) are considered. Due to the using of prestressing force in

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S. Klak, Fadya, and Muyasser M. Jomaa'h. "Structural response of reinforced LECA aggregate concrete slabs subjected to high temperatures." Insight - Civil Engineering 6, no. 1 (2023): 617. http://dx.doi.org/10.18282/ice.v6i1.617.

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This work reports tests conducted on nine one-way reinforced concrete slabs using lightweight expanded clay aggregate (LECA) as a slab weight reduction technique. Every slab had the same dimensions, steel reinforcement, and the same composition of concrete. The slabs were heated from their bottom faces through a fire chamber and subjected to a sustained line load. The specimens’ fire resistance performance and mechanical characteristics were evaluated after they had undergone the same testing conditions. The study parameters were the replacement of coarse aggregate with different percentages o

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