Effect of High Temperatures on the Impact Strength of Concrete Based on Recycled Aggregate Made of Heat-Resistant Cullet

Powęzka, Aleksandra; Szulej, Jacek; Ogrodnik, Paweł

doi:10.3390/ma13020465

Cited by 14 publications

(24 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can also be influenced by the construction of the contact zone between the binder and the aggregate, as well as the reaction of the aggregate used with the binder, which may affect the porosity of the silicate. Changes in the binder-aggregate contact zone have also been noticed in the work Powęzka and Szulej [32]. However, by considering the results of water absorption, it was found that the proportion of open pores increased considerably (Figure 8).…”

Section: Resultssupporting

confidence: 66%

Recycled Glass as a Substitute for Quartz Sand in Silicate Products

2020

View full text Add to dashboard Cite

In 2016, an average of 5.0 tons of waste per household was generated in the European Union (including waste glass). In the same year, 45.7% of the waste glass in the EU was recycled. The incorporation of recycled waste glass in building materials, i.e., concrete, cements, or ceramics, is very popular around the world because of the environmental problems and costs connected with their disposal and recycling. A less known solution, however, is using the waste glass in composite products, including sand-lime. The aim of this work was to assess the role of recycled container waste glass in a sand-lime mix. The waste was used as a substitute for the quartz sand. To verify the suitability of recycled glass for the production of sand-lime products, the physical and mechanical properties of sand-lime specimens were examined. Four series of specimens were made: 0%, 33%, 66%, and 100% of recycled waste glass (RG) as a sand (FA) replacement. The binder mass did not change (8%). The research results showed that ternary mixtures of lime, sand, and recycled waste glass had a higher compressive strength and lower density compared to the reference specimen. The sand-lime specimen containing 100% (RG) increased the compressive strength by 287% compared to that of the control specimen. The increase in the parameters was proportional to the amount of the replacement in the mixtures.

show abstract

Section: Resultssupporting

confidence: 66%

Recycled Glass as a Substitute for Quartz Sand in Silicate Products

2020

View full text Add to dashboard Cite

show abstract

“…Each obtained tonne of glass cullet allows a saving 800 kg of sand, 250 kg of soda and 180 kg of limestone powder. This shows that the usage of glass from recycling contributes to a reduction in the volume of landfills and widely promotes the circular economy [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

“…Glass used for the production of concrete needs to undergo a special processing procedure [ 5 , 11 ]. The whole material may be recycled.…”

Section: Introductionmentioning

confidence: 99%

“…Recently conducted studies [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ] enable the determination of the suitability of using waste materials for the production of ceramics, binders, mortar, concrete, plaster, bituminous materials etc. For testing requirements, use is made of various types of cullet, from car glazing [ 25 ], soda-lime glass from containers [ 26 , 27 , 28 ], glass from technological lines of the pharmaceutical industry [ 29 , 30 , 31 ], cathode ray tubes for TV sets and computer screens [ 32 , 33 ], float glass from window glazing [ 5 ], glass from fluorescent lamps [ 13 ], glass from heat resistant dishes [ 34 ] and mirrors, safety glass, crystal glass, and colourless, green and brown packaging glass [ 34 , 35 , 36 , 37 , 38 , 39 ] among others.…”

Section: Introductionmentioning

confidence: 99%

“…Cullet is used as a substitute for cement, sand and coarse aggregate in concrete, and in addition may be used for stabilisation of natural soils or for the construction of roads and subgrades [ 5 , 40 ]. The powder fraction of ground glass may also be used in concrete as a pozzolanic material [ 41 ].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Reuse of Heat Resistant Glass Cullet in Cement Composites Subjected to Thermal Load

2020

Self Cite

View full text Add to dashboard Cite

The article describes the possibility of using waste glass cullet as an alternative aggregate for the production of cement composites. Three concrete mixes based on Portland cement CEM I 42.5 R with different contents of recyclate were designed. Borosilicate glass cullet was introduced into the batch by reducing the content of natural aggregate by 0%, 2.5% and 7.5%. Apparent density, water absorption and compressive strength at elevated temperature were measured. The temperature distribution, in cubic samples, was followed by thermocouples. The elements were heated in a special furnace at the temperatures of 200 °C, 400 °C, 600 °C and 800 °C. The composite topography and phase composition were observed using X-ray energy scattering electron microscopy. The results show that the appropriate modification of the cement composite with 2.5% heat-resistant glass cullet improves both the thermal and mechanical properties. Compressive strength reaches an average value of 48.6 MPa after 28 days. The increase in temperature weakens the structure of the composite. It was found that the obtained cement composite has good physico–chemical properties. The research results are presented in the article.

show abstract