Recycling of a Concrete Pavement after over 80 Years in Service

By recycling used glass containers, we are able to recover and reuse their valuable properties, which is a way to preserve the relevant natural resources and lessen environmental burdens. For example, recycled waste glass (in the form of powder) can be used in the production of concrete. This article analyses the effect of waste glass addition on the properties of C12/15, which is used, for example, as concrete bedding material to support road drainage gutters and kerbs. Ground waste glass was used as a filler in the mix, i.e., without decreasing the amount of cement. Brown glass collected as municipal solid waste was used in this research. The research comprised an experiment prepared on the basis of the central composite design. The independent variables included water/cement ratio and the amount of glass powder, expressed as the glass to cement ratio by weight. The adopted research program mainly included the definition of the concrete compressive strength, water absorption and freeze–thaw resistance after 25 and 100 cycles of freezing and thawing. For selected systems, the characteristics of air voids in hardened concrete were also defined. The beneficial effect of ground waste glass added as a filler to the concrete mixture on the strength and durability of concrete was confirmed by the obtained test results.

show abstract

“… The distribution of air void diameters in the analysed concrete and sample of the over 80 year-old concrete of the A6 motorway pavement [ 36 ]. …”

Section: Figurementioning

confidence: 99%

Effect of Ground Waste Glass Addition on the Strength and Durability of Low Strength Concrete Mixes

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…Concrete is a material that allows for the disposal of waste [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. This is very important in the case of non-biodegradable or hardly decomposable materials such as polymers or glass waste.…”

Section: Introductionmentioning

confidence: 99%

Physical and Mechanical Properties of Polypropylene Fibre-Reinforced Cement–Glass Composite

et al. 2021

View full text Add to dashboard Cite

In accordance with the principles of sustainable development, environmentally friendly, low-emission, and energy-intensive materials and technologies, as well as waste management, should be used. Concrete production is responsible for significant energy consumption and CO2 production; therefore, it is necessary to look for new solutions in which components are replaced by other materials, preferably recycled. A positive way is to use glass waste. In order to determine the effect of a significant glass cullet content on the properties of concrete, glass powder was used as a filler and 100% glass aggregate. The cement–glass composite has low tensile strength and brittle failure. In order to improve tensile strength, the effects of adding polypropylene fibres on the mechanical properties of the composite were investigated. With the addition of 300, 600, 900, 1200, and 1500 g/m3 of fibres, which corresponds to 0.0625%, 0.1250%, 0.1875%, 0.2500%, and 0.3125% of cement mass, respectively, flexural strength increased compared with the base sample by 4.1%, 8.2%, 14.3%, 20.4%, and 26.5%, respectively, while the increase in splitting strength was 35%, 45%, 115%, 135%, and 185%, respectively. Moreover, with the addition of fibres, a decrease in slump by 25.9%, 39.7%, 48.3%, 56.9%, and 65.5%, respectively, compared with the reference specimen was determined.

show abstract

“…Nowadays, concrete additives are being derived from recycling or special treatment of waste materials [ 10 , 11 , 12 ]. Waste should be recycled at first, but their usage in the concrete mix recipe is definitely possible [ 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Material Properties of Mortar Reinforced with Glass Fiber: An Experimental Study

et al. 2021

View full text Add to dashboard Cite

The progressive increase in the amount of glass waste produced each year in the world made it necessary to start the search for new recycling methods. This work summarizes the experimental results of the study on mortar samples containing dispersed reinforcement in the form of glass fibers, fully made from melted glass waste (bottles). Mortar mixes were prepared according to a new, laboratory-calculated recipe containing glass fibers, granite as aggregate, polycarboxylate-based deflocculant and Portland cement (52.5 MPa). This experimental work involved three different contents (600, 1200, and 1800 g/m3) of recycled glass fibers. After 28 days, the mechanical properties such as compressive, flexural, and split tensile strength were characterized. Furthermore, the modulus of elasticity and Poisson coefficient were determined. The initial and final setting times, porosity, and pH of the blends were measured. Images of optical microscopy (OM) were taken. The addition of glass fibers improves the properties of mortar. The highest values of mechanical properties were obtained for concrete with the addition of 1800 g/m3 of glass fibers (31.5% increase in compressive strength, 29.9% increase in flexural strength, and 97.6% increase in split tensile strength compared to base sample).

show abstract

Recycling of a Concrete Pavement after over 80 Years in Service

Cited by 22 publications

References 12 publications

Effect of Ground Waste Glass Addition on the Strength and Durability of Low Strength Concrete Mixes

Effect of Ground Waste Glass Addition on the Strength and Durability of Low Strength Concrete Mixes

Physical and Mechanical Properties of Polypropylene Fibre-Reinforced Cement–Glass Composite

Mechanical and Material Properties of Mortar Reinforced with Glass Fiber: An Experimental Study

Contact Info

Product

Resources

About