Study on foamed concrete used as seismic isolation

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Study on foamed concrete used as seismic isolation ...

2013-12-26  An orthogonal experiment was developed to study the effects of mix proportions on the properties of foamed concrete. Then, based on the demands of

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Study on foamed concrete used as seismic isolation ...

An orthogonal experiment was developed to study the effects of mix proportions on the properties of foamed concrete. Then, based on the demands of foamed concrete used as a seismic isolation ...

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Seismic isolation effect of foamed concrete layer along ...

2019-4-25  Foamed concrete is widely used in seismically isolated tunnels. As a linear underground structure, research on seismic isolation of the tunnel along the longitudinal direction is very important. However, few studies have been conducted on the seismic isolation effect of foamed concrete layer along the longitudinal direction of mountainous tunnels. To study the seismic isolation effect of ...

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Mechanical properties and associated seismic isolation ...

2019-2-1  Foamed concrete has a good energy absorption capability and can be used as seismic isolation material for tunnels. This study aims to investigate the mechanical properties and associated seismic isolation effects of foamed concrete layer in rock tunnel.

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Mechanical Properties and Seismic Isolation Mechanism of ...

2018-5-5  Abstract. Foamed concrete has excellent shock absorption properties, so it can be used as one type of seismic isolation material for tunnels. The objective of this study is to investigate the mechanical properties and seismic isolation mechanism of foamed concrete longitudinal joints.

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Seismic isolation effect of foamed concrete layer along ...

Foamed concrete is widely used in seismically isolated tunnels. As a linear underground structure, research on seismic isolation of the tunnel along the longitudinal direction is very important. However, few studies have been conducted on the seismic isolation effect of foamed concrete layer along the longitudinal direction of mountainous tunnels. To study the seismic isolation effect of ...

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Study on Foamed Concrete Used as Gas Isolation Material

2020-8-25  energies Article Study on Foamed Concrete Used as Gas Isolation Material in the Coal Mine Goaf Changyu Xu 1,2, Lijun Han 1,2,*, Maolin Tian 1,2, Yajie Wang 1 and Yuhao Jin 1,2 1 School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China; [email protected] (C.X.); [email protected] (M.T.);

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Study on Foamed Concrete Used as Gas Isolation Material in ...

Huang et al. [ 11] investigated the proportioning and properties of Portland cement-based ultra-lightweight foam concrete which was recommended to achieve energy efficiency in buildings. Zhao et al. [ 12] developed a new type of foamed concrete used as a seismic isolation material by orthogonal experiment.

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(PDF) Study on Foamed Concrete Used as Gas Isolation ...

2020-8-25  Simulation results showed that this foamed concrete used as isolating material for goaf gas could significantly decrease the gas concentration in workface, which can provide a reference for similar...

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Study on Foamed Concrete Used as Gas Isolation Material in ...

Downloadable! In view of the serious threat of gas accumulation in the coal mine goaf and the limitations of the existing gas sealing materials, the orthogonal experiment was developed to study a new type of foamed concrete for mine gas sealing. Dry density, gas permeability, and compressive strength were studied as the material indicators according to the demands of the gas isolation material ...

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Mechanical properties and associated seismic isolation ...

2019-2-1  Foamed concrete has a good energy absorption capability and can be used as seismic isolation material for tunnels. This study aims to investigate the mechanical properties and associated seismic isolation effects of foamed concrete layer in rock tunnel.

Get price

Seismic isolation effect of foamed concrete layer along ...

Foamed concrete is widely used in seismically isolated tunnels. As a linear underground structure, research on seismic isolation of the tunnel along the longitudinal direction is very important. However, few studies have been conducted on the seismic isolation effect of foamed concrete layer along the longitudinal direction of mountainous tunnels. To study the seismic isolation effect of ...

Get price

Mechanical properties and associated seismic isolation ...

Foamed concrete has a good energy absorption capability and can be used as seismic isolation material for tunnels. This study aims to investigate the... DOAJ is a community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals.

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Study on Foamed Concrete Used as Gas Isolation Material in ...

Downloadable! In view of the serious threat of gas accumulation in the coal mine goaf and the limitations of the existing gas sealing materials, the orthogonal experiment was developed to study a new type of foamed concrete for mine gas sealing. Dry density, gas permeability, and compressive strength were studied as the material indicators according to the demands of the gas isolation material ...

Get price

Experimental Study on Seismic Performance of Fabricated ...

2020-12-18  Experimental Study on Seismic Performance of Fabricated Steel Foamed Concrete T-Shaped Wallboard. Ding Zhou,1 Dianzhong Liu,1 and Kuolin Li1. 1College of Civil Engineering, Jilin Jianzhu University, Changchun 130000, Jilin, China. Academic Editor: Wenbing Wu.

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赵武胜-中国科学院大学-UCAS

(10) Study on foamed concrete used as seismic isolation material for tunnels in rock, Materials Research Innovations, 2013, 第 1 作者 科研活动 科研项目

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Study on Seismic Resistance and Isolation Method of ...

.Earthquake, as a natural phenomenon that can bring enormous energy, usually causes buildings collapses and has brought great losses to human beings in recent years, so seismic design is closely related to social stability and economic development. As a basic kind of building structure, frame has been prevalent in our daily life, so the seismic resistant design of frame structure becomes ...

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Study on Foamed Concrete - IOSR-JEN

2019-3-4  Study on Foamed Concrete Aaquib Anwar1, Saquib Israr2, Faizan Ashraf3, Maaz Arkam4 Mohammed Junaid5, Abu Usama6 1, 2,3,4,5,6 (Department of Civil engineering ,Maulana Mukhtar Ahmed Nadvi Technical Campus, Maharashtra, India.) Abstract: Recently, foamed concrete widely used in civil construction and building, because of its high fluidity and ...

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A Study on the Seismic Isolation Systems of Bridges with ...

2014-12-24  design procedures for seismic isolation system . The bridge was used as an example of bridge design without an isolation system in the Federal Highway Administration (FHWA) Seismic Design Course, Design Example No. 4, prepared by Berger/Abam Engineers (1996) [2]. The bridge is a continuous, three -span, cast -in -place concrete

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Study on polyurethane foamed concrete for use in ...

2018-6-1  1. Introduction. Structural lightweight concrete has an in-place density (unit weight) of the order of (1440–1840) kg/m 3 compared to normal weight concrete with a density in the range of (2240–2400) kg/m 3.For structural applications, the concrete strength should be greater than (17 MPa) according to ACI 213R [].Foamed concrete is a type of lightweight aerated concrete which consists ...

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A Study on Seismic Performance of Reinforced Concrete ...

2019-4-11  A Study on Seismic Performance of Reinforced Concrete Frame with Lead Rubber Bearing Base Isolation System R. Santhoshkumr1, J. Premalatha2 1P.G Scholar, Kumaraguru College of Technology, Coimbatore. 2Professor in Civil Engineering Department, Kumaraguru College of Technology, Coimbatore, Tamilnadu, India

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Study on Seismic Resistance and Isolation Method of ...

.Earthquake, as a natural phenomenon that can bring enormous energy, usually causes buildings collapses and has brought great losses to human beings in recent years, so seismic design is closely related to social stability and economic development. As a basic kind of building structure, frame has been prevalent in our daily life, so the seismic resistant design of frame structure becomes ...

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Seismic isolation in existing complex structures

2012-7-21  In 2005 the retrofit of a reinforced concrete building with seismic isolation by means of the realization of a sub-foundation was completed (Fig. 3.2). It had suffered severe but non-structural damage during the 1997-98 Umbria-Marche earthquake. 56 HDRBs of two sizes were used, of 400 mm and 450 mm diameter, respectively.

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Frontiers Seismic Isolation for Protecting Historical ...

2019-7-3  Commonly, seismic isolation is used for retrofitting of Reinforced Concrete (RC) existing buildings, since very often they were designed only for vertical loads without any detailing rule for ductility, as highlighted in some recent studies such as, among the others, (Laterza et al., 2017a).

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EXPERIMENT AND CASE STUDY ON FOAMED CONCRETE

2021-4-19  When compared to normal concrete, it is considerably homogeneous. However, its properties depend on the microstructure and composition of concrete. Lightweight is one of the main advantages of the foamed concrete. 3. MATERIALS USED • Cement It is a binding agent. It is used in the construction works that binds all the materials used.

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Foam Concrete - ripublication

2017-3-28  Cement is the most commonly used binding agent. Other binder materials like quarry dust and fly ash can also be used in conjunction with cement. The quarry dust can be used as an additional filler material. Quarry dust consists mainly of excess fines generated from crushing, washing and screening operations at quarries.

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A STUDY ON THE THERMAL AND ACOUSTIC

2021-6-10  In this study, rubberized lightweight foamed concrete with a density range from 1400 kg/m3 to 1500 kg/m3 was produced using the mix proportion. Two different crumb rubber sizes, powdered and granular crumb rubber, were used to replace the fine aggregate

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EXPERIMENTAL STUDY ON THE SEISMIC BEHAVIOR OF A

2021-3-15  It was found that the seismic performance of the slit wall improved significantly. Cho et al. [2] used hollow steel tubes as the boundary elements of reinforced concrete shear walls. The seismic behaviour of this new type of shear wall is equivalent to that of a traditional reinforced concrete shear wall. An experimental investigation including ...

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Fundamental Study on the Development of Structural ...

2018-6-8  Korea, the minimal compressive strength that can be used in structural elements is 21 MPa, and it is proposed in this study to develop structural lightweight foamed concrete with a compressive strength that is higher than the compressive strength of reinforced concrete slabs.

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Shaosen Ma - Graduate Research Assistant - Faculty of ...

Preparation and performance study on foamed concrete used as seismic isolation or energy absorption Rock characterization, testing and monitoring under 3D coupled static-dynamic loads Roles of 3D-DIC technique on macroscopic and microscopic deformation, fracture and fragmentation properties of geotechnical medium

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