Characterization of lightweight ferrocement panels containing expanded perlite-based mortar

Işıkdağ, Burak

doi:10.1016/j.conbuildmat.2015.02.009

Cited by 45 publications

(24 citation statements)

References 21 publications

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“…The crack pronouncement is more during the loading condition but the ductile capacity of the specimen is superior in performance of loading. EMM make an improvement in the structural indicators such as cracking loads, ultimate loads and ductility of panel [19]. The number of mesh layer contributes to the effective strength achievement upto a certain limit thereafter there will be no effect.…”

Section: Figurer 1 Nano Fly Ashmentioning

confidence: 99%

Flexural Behavior of Geopolymer Ferro Cement Panels with the Incorporation of Crumb Rubber and Nano Fly Ash

Muthukumar¹,

Mohana²

2019

IJRTER

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This paper presents the application of geopolymer mortar incorporating into the Ferro cement panel with enhanced properties by incorporating crumb rubber and Nano fly ash. The cement free mortar is prepared by using industrial wastes such as fly ash and ground granulated blast furnace slag (GGBFS) called as geopolymer mortar which helps to reduce the level of CO 2 emission. Also, the recycled tyre crumb rubber is utilized as a sustainable construction material with partial substitution for sand. It helps to reduce land fill problems and air pollution. Crumb rubber having the capacity of absorbing more energy from static and other loads. In this research, geopolymer mortar is made by using the basic constituents such as fly ash, GGBFS, alkaline liquid made of NaOH and Na2SiO3, Nano fly ash. The effort has been made to enhance the strength of fly ash based geopolymer mortar by incorporation of GGBFS. The molarity of alkaline solution, solution to binder ratio and Na2SiO3 to NaOH ratio is fixed as 12, 0.4 and 1.5 throughout the process. The 5% crumb rubber is used instead of sand for enhancing the strength and for better ductility without affecting the strength. The panel was heat cured under hot air oven at 80ᵒ C for 48 hours. The mechanical properties such as compressive and tensile strength and water absorption are investigated. The Ferro cement panel is made of high strength geopolymer mortar and expanded metal mesh for enhancing the ductility and energy absorption capacity. The 2 layers of expanded metal mesh and 2 layers of chicken mesh are used. The investigation involves finding the initial crack load, ultimate failure load and residual flexural strength ratio. The Nano fly ash helps in increasing the strength and durability of the element by its pore filling capability. Keywords-geopolymer mortar, fly ash, GGBFS, Impact, Nano fly ash. I. INTRODUCTION Geopolymer is a green innovative eco-friendly material for obtaining sustainable development with enhanced strength properties. This material not emits high amount o f carbon dioxide gas like cement manufacturing process [7]. It has too low level of loss on ignition values. The OPC manufacture also leads to the emission of nitrogen and sulphur oxide gases which creates global warming and acid rain problems. The cement manufacture alone creates 65% of global warming and it emits 1.35 billion tons of carbon dioxide gas into the environment. The geopolymer requires 1.6GJ energy with 80% reduction in CO2 emission whereas the cement manufacture needs 4GJ energy [1] & [3]. The geopolymerization process involves number of chains of inorganic molecule between polymer materials. The benefits of the geopolymer material are higher compressive strength, earlier strength development, acid resistance, fire resistance, low creep and shrinkage, crack reduction and lower porosity [6] & [9]. For the manufacturing of geopolymer

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Section: Figurer 1 Nano Fly Ashmentioning

confidence: 99%

Flexural Behavior of Geopolymer Ferro Cement Panels with the Incorporation of Crumb Rubber and Nano Fly Ash

Muthukumar¹,

Mohana²

2019

IJRTER

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“…Çalışma kapsamında üretilen blok serilere ait ağırlıkça su emme oranları Şekil 4'te verilmiştir. Tüm seriler birlikte değerlendirildiğinde blok numunelerin su emme oranları %50'nin altında çıkmış, matristeki mikro boşluk oranının ve taneler arası makro boşluk oranının artmasına neden olan (Işıkdağ, 2015) perlit agregası oranının azalması ile su emme oranı da azalmıştır. Çok belirgin olmamakla birlikte, ince yapısıyla boşlukları doldurarak daha yoğun bir yapı elde edilmesine katkı sağlayan uçucu kül, ağırlıkça su emmede bir miktar azalma sağlamıştır.…”

Section: şEkil 3: Blok Numunelerine Ait Eğilme Dayanımı Değerleriunclassified

Mekani̇k Ve Fi̇zi̇ksel Özelli̇kleri̇ Bakimindan Genleşti̇ri̇lmi̇ş Perli̇t Agregali Hafi̇f Blok

Kabay

Kizilkanat

2019

Uludağ University Journal of the Faculty of Engineering

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Öz: Türkiye perlit kaynakları açısından oldukça zengin ülkelerden birisidir. Ham perlitin yüksek sıcaklıklarda genleştirilmesi ile elde edilen genleştirilmiş perlit özellikle düşük yoğunluğu ve ısı yalıtım özelliği ile inşaat sektöründe kullanım alanı bulmaktadır. Bu çalışmada genleştirilmiş perlit agregası kullanılarak hafif ve ısı yalıtım özellikli blok üretimi amaçlanmıştır. Bu amaçla bağlayıcı olarak çimento ve uçucu kül kullanılan, su/bağlayıcı oranı 0,40 olan ve perlitin hacimce %40, %50 ve %60 oranında kullanıldığı plak elemanlar üretilmiş, bu elemanlardan uygun boyutlarda kesilerek elde edilen blok numunelerde fiziksel ve mekanik deneyler gerçekleştirilmiştir. Deney sonuçları, perlit agregasının blok üretiminde kullanılabileceğini göstermiş, ayrıca bağlayıcı olarak kullanılan çimentonun hacimce %50 oranında uçucu kül ile ikame edildiğinde bloğun fiziksel ve mekanik performansını önemli ölçüde etkilemediği, daha düşük çimento kullanımı ile daha çevreci bir ürün eldesini sağladığını ortaya koymuştur. Bu çalışma kapsamında üretilen genleştirilmiş perlit agregalı bloğun fiziksel ve mekanik özellikler dikkate alındığında gaz beton ile rekabet edebilecek nitelikte bir ürün olduğu, özellikle su emme ve ısı iletkenlik katsayısı açısından daha üstün performans gösterdiği görülmüştür.

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“…The methods for production of lightweight concrete can be mainly summarized as follows: (1) Adding lightweight aggregates into concrete mixtures, replacing completely or partially normal weight aggregates to achieve lightweight property. Conventional lightweight aggregates concrete incorporating expanded clay, expanded glass, expanded shale, expanded perlite, expanded vermiculite, foamed slag, expanded polystyrene beads, and fly ash aggregates has been developed and investigated in the past and has successfully achieved desired strength and unit weight for application [ 11 , 12 , 13 , 14 , 15 , 16 ]. (2) Adding foaming agent or air-entraining agent into the mixtures to introduce a certain volume of air voids in concrete mixtures [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

A Novel, Multifunctional, Floatable, Lightweight Cement Composite: Development and Properties

et al. 2018

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This paper presents the development of a novel, multifunctional, floatable, lightweight cement composite (FLCC) using three different types of glass microspheres for structural engineering applications. Eight different mixtures of FLCC were produced and their matrix-related parameters were examined experimentally by adopting different types of microsphere fillers, fiber content (polyethylene fibers (PE)), and water-to-binder ratios. Along with the mechanical properties such as compressive, flexural, tensile strengths, and modulus of elasticity, the water tightness of the material was evaluated by sorptivity measurements and the energy efficiency by thermal conductivity. The optimal FLCC has an oven-dry density of 750 kg/m3, compressive strength (fcm) up to 41 MPa after 28-day moist curing, low thermal conductivity of 0.152 W/mK, and very low sorptivity. It is found that an optimized amount of PE fiber is beneficial for improving the tensile resistance and ductility of FLCC while a relatively large amount of microspheres can increase the entrapped air voids in the FLCC matrix and reduce its density and thermal conductivity. Microstructural analysis by scanning electron microscopy (SEM) reveals that the microspheres are distributed uniformly in the cement matrix and are subjected to triaxial compression confinement, which leads to high strength of FLCC. Segregation due to density difference of FLCC ingredients is not observed with up to 60% (by weight) of glass microspheres added. Compared to the other lightweight aggregate concretes, the proposed FLCC could be used to build floating concrete structures, insulating elements, or even load-bearing structural elements such as floor and wall panels in which self-weight is a main concern.

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Characterization of lightweight ferrocement panels containing expanded perlite-based mortar

Cited by 45 publications

References 21 publications

Flexural Behavior of Geopolymer Ferro Cement Panels with the Incorporation of Crumb Rubber and Nano Fly Ash

Flexural Behavior of Geopolymer Ferro Cement Panels with the Incorporation of Crumb Rubber and Nano Fly Ash

Mekani̇k Ve Fi̇zi̇ksel Özelli̇kleri̇ Bakimindan Genleşti̇ri̇lmi̇ş Perli̇t Agregali Hafi̇f Blok

A Novel, Multifunctional, Floatable, Lightweight Cement Composite: Development and Properties

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