Influence of Porous Aggregate on the Properties of Foamed Concrete

Namsone, Elvija; Šahmenko, Genādijs; Korjakins, Aleksandrs; Namsone, Eva

doi:10.1515/cons-2016-0006

Cited by 15 publications

(11 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The effect distribution and size of the pores was presented, e.g., in [ 60 , 66 , 67 ]. Namsone et al [ 68 ] determined that using expanded glass granule reduced the density of FC samples by 54% and 28-days compression strength (about 33%) compared to reference mixture. Zhang et al [ 69 ] analyzed the effect of phenolic particles on mechanical and thermal conductivity and they achieved the best performance indexes for 20% the substitution of phenolic particles content, 5% foaming agent, 1% foam stabilizer, and w/c ratio equal 0.53.…”

Section: Characteristics Of Tested Materials and Used Methodsmentioning

confidence: 99%

Experimental and Numerical Verification of the Railway Track Substructure with Innovative Thermal Insulation Materials

et al. 2021

View full text Add to dashboard Cite

The article aims to present the modified structural composition of the sub-ballast layers of the railway substructure, in which a part of the natural materials for the establishment of sub-ballast or protective layers of crushed aggregate is replaced by thermal insulation and reinforcing material (layer of composite foamed concrete and extruded polystyrene board). In this purpose, the experimental field test was constructed and the bearing capacity of the modified sub-ballast layers’ structure and temperature parameters were analyzed. A significant increase in the original static modulus of deformation on the surface of composite foamed concrete was obtained (3.5 times and 18 times for weaker and strengthen subsoil, respectively). Based on real temperature measurement, it was determined the high consistency of the results of numerical analyses and experimental test (0.002 m for the maximum freezing depth of the railway line layers and maximum ±0.5 °C for temperature in the railway track substructure–subsoil system). Based on results of numerical analyses, modified railway substructure with built-in thermal insulating extruded materials (foamed concrete and extruded polystyrene) were considered. A nomogram for the implementation of the design of thicknesses of individual structural layers of a modified railway sub-ballast layers dependent on climate load, and a mathematical model suitable for the design of thicknesses of structural sub-ballast layers of railway line were created.

show abstract

Section: Characteristics Of Tested Materials and Used Methodsmentioning

confidence: 99%

Experimental and Numerical Verification of the Railway Track Substructure with Innovative Thermal Insulation Materials

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The results of the research conducted [7] shows that the use of lightweight aggregates and porous "expanded glass granules (EG)" in the preparation process of foam concrete samples, can reduce the density of foam concrete samples by 54 % (in comparison to the samples of the reference mixture). With the reduction of density and an increase in porosity, these samples showed about 33% lower values of compression strength (after 28 days of hardening) than the samples made from the reference mixture.…”

Section: Porosity Of Concretementioning

confidence: 99%

“…The use of porous aggregate material called expanded glass (EG) granules on foam concrete has been done by using the mineral mixture of pozzolan metakaolin (MK) and microsilica (MS) to improve the properties of foam concrete shrinkage and long-term durability [7].…”

Section: Introductionmentioning

confidence: 99%

The use of grinded andesite-sand and foaming-agent to improve the porosity of foam-concrete

et al. 2018

View full text Add to dashboard Cite

Abstract. There has been an increase in the demand for the use of green concrete in construction. Foam concrete is a lightweight concrete type that has the characteristics of being lightweight, low-strength, highly porous with a high absorption rate and with good insulation properties. The use of sand smoothed andesite in the manufacture of foam concrete is expected to improve the properties of porous concrete and make it more suitable for use. In this study, 120 mortar cubes with the size of 5 cm was used for the density testing, compressive strength testing and porosity testing of foam concrete. Foam concrete is made by mixing cement, sand andesite of 1:2.75 and w/c 0.7 and a foaming agent, which are respectively 1%,2%, 3%, and 4%. Porosity measurements with the soaking method and the concrete compressive strength test were performed, respectively at the age of 7, 14, 21, and 28 days. The results showed that the increase in use of a foaming agent will cause a reduction in the density and the compressive strength of the concrete. While the porosity of foam concrete which is measured at the "volume of permeable void" will increase with the decreasing density and compressive strength of concrete.

show abstract

“…Hafif agrega olması nedeniyle hafif beton ve harç üretiminde kullanılabilecek ideal bir malzemedir [12]. Çalışmada kullanılan GCK agregasına ait teknik özellikler Tablo 2'de verilmiştir [13].…”

Section: Introductionunclassified

Genleştirilmiş Cam Küre Agrega Katkılı Harçların Bazı Özelliklerinin İncelenmesi

Aktürk¹,

Dayı

Aruntaş

2021

Düzce Üniversitesi Bilim Ve Teknoloji Dergisi

View full text Add to dashboard Cite

Bu çalışmada atık camdan üretilmiş olan genleştirilmiş cam küre (GCK) ikame edilmiş harçların mekanik ve fiziksel performansları araştırılmıştır. Bu amaçla agrega olarak, genleştirilmiş cam küre agregası ve doğal kum ile bağlayıcı olarak çimento ve kirecin kullanıldığı harç karışımları hazırlanmıştır. Karışımlarda 1-2 mm ve 2-4 mm boyutlarında genleştirilmiş cam küre aynı boyutlardaki kum ile hacimce %0, %25, %50 ve %100 oranlarında yer değiştirilerek kullanılmıştır. Harç karışımları 40×40×160 mm ebatlı kalıplara dökülmüş ardından 7, 28 ve 56 günlük kür sürelerine tabi tutulmuştur. Kür sonunda harç serilerinde sertleşmiş birim hacim ağırlık, porozite, kütlece su emme, ultrasonik geçiş hızı ile basınç dayanımı deneyleri yapılmıştır. Sonuç olarak; atık bir madde olan camın geri dönüştürülmesiyle oluşan genleştirilmiş cam kürenin harç içine katılmasıyla kazanılan performanslar neticesinde geleneksel harçlarda kullanılabileceği belirlenmiştir.

show abstract

Influence of Porous Aggregate on the Properties of Foamed Concrete

Cited by 15 publications

References 8 publications

Experimental and Numerical Verification of the Railway Track Substructure with Innovative Thermal Insulation Materials

Experimental and Numerical Verification of the Railway Track Substructure with Innovative Thermal Insulation Materials

The use of grinded andesite-sand and foaming-agent to improve the porosity of foam-concrete

Genleştirilmiş Cam Küre Agrega Katkılı Harçların Bazı Özelliklerinin İncelenmesi

Contact Info

Product

Resources

About