Mechanical and thermal properties of novel lightweight concrete mixtures containing recycled glass and metakaolin

Al-Sibahy, Adnan; Edwards, Rodger

doi:10.1016/j.conbuildmat.2011.12.095

Cited by 62 publications

(37 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It has been well-known and successfully used for quite a long time [24,25,26,27,28,29]. The examples of application of lightweight aggregate fillers, presented in the publications, confirm that this solution is technically feasible in the road construction industry, and its significant advantages influence the possibility of reducing costs of road construction as compared to traditional materials [30,31,32,33,34,35,36,37,38,39]. Therefore, the authors have made an attempt to use GEGA as a substitute for the natural aggregate in the sub-grade and the frost protection layer of the road foundation.…”

Section: Introductionmentioning

confidence: 89%

The Application of Granulated Expanded Glass Aggregate with Cement Grout as an Alternative Solution for Sub-Grade and Frost-Protection Sub-Base Layer in Road Construction

et al. 2019

View full text Add to dashboard Cite

The purpose of the research was to assess the possibility of using granulated expanded glass aggregate (GEGA) with cement grout as a replacement of a sub-grade and frost-protection layer, made of natural fine aggregates (NATU), stabilized with a hydraulic binder. Instead of traditional parts of the road construction, such as the sub-grade and frost-protection layer with the application of fine aggregate, stabilized with cement, the authors propose only one layer, made of lightweight water-permeable material, containing GEGA with a grain size from 8 to 11.2 mm. In the article the authors present the physical properties of the materials, applied for the road layers, the properties of the fine aggregate, stabilized with cement, and those of the cement composite with GEGA as an alternative solution. The laboratory test results of fine aggregates, stabilized with cement and of cement composites with GEGA, are presented. Porosity, volume density, compressive strength, and frost resistance are being researched. The results of those tests are meant to play an essential role in designing the thickness of road layers. Different types of pavement structure (asphalt and concrete) and different values of road load are being considered in the given work. The paper is concluded with considerations on an innovative solution, involving the use of ecological materials.

show abstract

Section: Introductionmentioning

confidence: 89%

The Application of Granulated Expanded Glass Aggregate with Cement Grout as an Alternative Solution for Sub-Grade and Frost-Protection Sub-Base Layer in Road Construction

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Out of the 70 papers reviewed, 13 investigated thermal or fire properties. The literature shows that as the replacement ratio of waste glass to fine aggregate increases, thermal conductivity decreases [141][142][143][144][145][146]. This may be attributed to the lower density of concrete mixtures and higher porosity and thermal stability of glass when compared to natural fine aggregate.…”

Section: Durability Properties and Thermal/fire Performancementioning

confidence: 99%

Current Sustainable Trends of Using Waste Materials in Concrete—A Decade Review

et al. 2020

View full text Add to dashboard Cite

Concrete is the most used construction material in the world. Consequently, the mass extraction of virgin materials required for concrete production causes major environmental impacts. With a focus on promoting sustainability, numerous research studies on incorporating waste materials to replace virgin substances in concrete were undertaken. Despite this vast volume of published literature, systematic research studies on these sustainable concrete mixes that inform various stakeholders on current research trends, future research directions, and marketability options products are seldom conducted. This paper presents a decade review on sustainable concrete with a focus on virgin materials being replaced with waste materials. It aims to inform researchers of current research trends and gaps in the research area of waste material use in concrete. The review also identifies key parameters that restrict the marketability of these sustainable concrete products. The three-step research methodology involves a bibliometric assessment, a key review of selected waste materials, and an interview with a panel of experts focusing on impediments towards the transition of sustainable concrete products into the industry market. Bibliometric assessment was based on 1465 research publications in which five key materials (plastic, glass, fly ash, slag) and construction and demolition waste were selected for the review. The interview was conducted with ten industry experts to discuss the industry limitations in the commercial establishment of materials. The review of existing knowledge and the findings on sustainable concrete presented in this paper provide directions for both research academics and industry stakeholders to systematically focus on sustainable concrete products that are market-ready.

show abstract

“…On the other hand, natural resources, such as pumice, perlite, or scoria, could also be used instead of the conventional limestone aggregates, increasing the economical impact that the exploitation of additional natural resources offers [3][4][5][6][7]. Finally, lightweight aggregates provide lower coefficient of thermal expansion and superior heat and sound insulation characteristics in the lightweight aggregate concrete (LWAC), due to their inner air voids [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Chloride Penetration in Lightweight Aggregate Mortars Incorporating Supplementary Cementing Materials

Stratoura

Iaz

Badogiannis

2018

Advances in Civil Engineering

View full text Add to dashboard Cite

The current research is aiming to investigate the chlorides’ penetration resistance of 9 different pumice lightweight aggregate mortars (LWAMs). The composition of the mixture is altered by the addition of metakaolin, fly ash, silica fume, and ground granulated blast furnace slag, substituting 10% and 20% of cement by mass. Workability and compressive strength of the mortars are studied together with durability parameters like water absorption due to capillary absorption and porosity. Moreover, the mortar resistance to chloride penetration is evaluated through non-steady-state chloride migration coefficient, complying to NT BUILD 492 standard. Summarizing all the laboratory test results, while the addition of metakaolin in the range of 20% led to better workability, higher compressive strength, lower sorptivity, and lower volume of open porosity, it did not improve the resistance against chlorides’ penetration.

show abstract

Mechanical and thermal properties of novel lightweight concrete mixtures containing recycled glass and metakaolin

Cited by 62 publications

References 26 publications

The Application of Granulated Expanded Glass Aggregate with Cement Grout as an Alternative Solution for Sub-Grade and Frost-Protection Sub-Base Layer in Road Construction

The Application of Granulated Expanded Glass Aggregate with Cement Grout as an Alternative Solution for Sub-Grade and Frost-Protection Sub-Base Layer in Road Construction

Current Sustainable Trends of Using Waste Materials in Concrete—A Decade Review

Chloride Penetration in Lightweight Aggregate Mortars Incorporating Supplementary Cementing Materials

Contact Info

Product

Resources

About