Alkali–silica reactivity of some frequently used lightweight aggregates

Mladenovič, Ana; Šuput, Jerneja Strupi; Ducman, Vilma; Škapin, A.S.

doi:10.1016/j.cemconres.2004.01.017

Cited by 96 publications

(56 citation statements)

References 4 publications

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“…Kramar and Bindiganavile further confirmed that compressive strength declines cubically while flexural strength and fracture toughness decreases linearly with perlite addition (Kramar and Bindiganavile 2013). Mladenovic studied the expanded vermiculite, clay, glass and perlite and similar observations for alkali-silica reactivity and found that these LWFs are suitable in terms of this particular durability related property (Ducman and Mladenovic 2004). Likewise, Hassanpur et al comprehensively reviewed the problems associated with the use of LWFs (expanded perlite, expanded clay, pumice, etc.)…”

Section: Introductionmentioning

confidence: 94%

Effects of Different Lightweight Functional Fillers for Use in Cementitious Composites

Hanif

Cheng

et al. 2017

Int J Concr Struct Mater

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Abstract:The effects of different lightweight functional fillers on the properties of cement-based composites are investigated in this study. The fillers include fly ash cenospheres (FACs) and glass micro-spheres (GMS15 and GMS38) in various proportions. The developed composites were tested for compressive, flexural and tensile strengths at 10 and 28-day ages. The results indicated that both FACs and GMS38 are excellent candidates for producing strong lightweight composites. However, incorporation of GMS15 resulted in much lower specific strength values (only up to 13.64 kPa/kg m 3 ) due to its thinner shell thickness and lower isostatic crushing strength value (2.07 MPa). Microstructural analyses further revealed that GMS38 and GMS15 were better suited for thermal insulating applications. However, higher weight fraction of the fillers in composites leads to increased porosity which might be detrimental to their strength development.

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Section: Introductionmentioning

confidence: 94%

Effects of Different Lightweight Functional Fillers for Use in Cementitious Composites

Hanif

Cheng

et al. 2017

Int J Concr Struct Mater

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“…Expanded glass is a finely porous (85-90% porosity), clean, light, flame retardant, easily handled, efficient and environmentally friendly building material with excellent properties of thermal insulation. Expanded glass granules contain a glassy phase and may react expansively with cement alkalis, and the possibility of alkali-silica reaction (ASR) must always be taken into account in the production of LWAC [1]. Previous investigations of lightweight aggregate reactivity provided that in some cases lightweight aggregates (perlite, expanded glass, expanded clay) may provoke ASR but with no harmful effects such as expansion and/or efflorescence [2].…”

Section: Introductionmentioning

confidence: 99%

Alkali-silica reactivity of expanded glass granules in structure of lightweight concrete

Būmanis

Bajāre

Ločs

et al. 2013

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Main component in the lightweight concrete, which provides its properties, is aggregate. A lot of investigations on alkali silica reaction (ASR) between cement and lightweight aggregates have been done with their results published in the academic literature. Whereas expanded glass granules, which is relatively new product in the market of building materials, has not been a frequent research object. Therefore lightweight granules made from waste glass and eight types of cement with different chemical and mineralogical composition were examined in this research. Expanded glass granules used in this research is commercially available material produced by Penostek. Lightweight concrete mixtures were prepared by using commercial chemical additives to improve workability of concrete. The aim of the study is to identify effect of cement composition to the ASR reaction which occurs between expanded glass granules and binder. Expanded glass granules mechanical and physical properties were determined. In addition, properties of fresh and hardened concrete were determined. The ASR test was processed according to RILEM AAR-2 testing recommendation. Tests with scanning electron microscope and microstructural investigations were performed for expanded glass granules and hardened concrete specimens before and after exposing them in alkali solution.

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“…Vermiculite is a clay mineral which can be expanded by heating at temperatures of 1000-1200 °C to produce low density particles [68], and larger pieces of expanded vermiculite are commonly used as protective packaging filler. Vermiculite can also be exfoliated to produce extremely thin single sheets of vermiculite.…”

Section: D) Vermiculitementioning

confidence: 99%

Low Carbon Footprint TiO2 Substitutes in Paint: A Review

Ruszala¹,

Rowson²,

Grover³

et al. 2015

IJCEA

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Abstract-Titanium dioxide (TiO 2 ) is one of the most efficient light scattering pigments known to man, and as a result it is widely used to deliver opacity, especially in paint formulations. However, due to the cost of TiO 2 , dwindling resources, and an energy intensive manufacturing process which produces undesirable by-products, substitutes are required to maintain a source of white pigment in the future and to comply with changing sustainability legislation. Many substitutes exist, including kaolin (both untreated and calcined), and hollow latex spheres. These, along with other alternatives, are reviewed.

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Alkali–silica reactivity of some frequently used lightweight aggregates

Cited by 96 publications

References 4 publications

Effects of Different Lightweight Functional Fillers for Use in Cementitious Composites

Effects of Different Lightweight Functional Fillers for Use in Cementitious Composites

Alkali-silica reactivity of expanded glass granules in structure of lightweight concrete

Low Carbon Footprint TiO2 Substitutes in Paint: A Review

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