Influence of Fly Ash Additive on the Properties of Concrete with Slag Cement

Szcześniak, Anna; Zychowicz, Jacek; Stolarski, Adam

doi:10.3390/ma13153265

Cited by 35 publications

(24 citation statements)

References 23 publications

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“…On the other hand, the production of building materials is responsible for significant energy consumption and CO 2 production [ 68 , 69 , 70 ], so it is necessary to look for new materials that can replace the currently used ones [ 71 , 72 ], preferably recycled [ 73 , 74 ]. The addition of recycled glass aggregate in concrete as a replacement of 5%, 10%, and 15% natural aggregate has been studied in previous research of the authors [ 75 ].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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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.

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Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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“…Waste should be recycled at first, but their usage in the concrete mix recipe is definitely possible [ 13 , 14 , 15 ]. For example, ash, old tires, foil or plastic packaging, glass bottles [ 16 , 17 , 18 ] can get a second life as a component of a concrete facade, foundation, or beam of a building. The waste materials in the form of fibers, e.g., steel, glass, polypropylene [ 19 , 20 , 21 ], available on the market and obtained using mechanical and thermal treatment can work very well as reinforcement in concrete [ 22 , 23 , 24 ], ultimately preventing cracks from progressing [ 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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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).

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“…The final amount of aggregate [ 69 , 70 , 71 , 72 , 73 ] in the concrete mix is calculated using Formula (9):

…”

Section: Methodsmentioning

confidence: 99%

Functional Method of Designing Self-Compacting Concrete

Rudnicki

2021

Materials

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The article presents a new functional method of designing self-compacting concrete (SCC). The assumptions of the functional method of designing self-compacting concrete were based on the double coating assumption (i.e., it was assumed that the grains of coarse aggregate were coated with a layer of cement mortar, whereas the grains of sand with cement paste). The proposed method is composed of four stages, each of which is responsible for the selection of a different component of the concrete mix. The proposed designing procedure takes into consideration such a selection of the mineral skeleton in terms of the volumetric saturation of the mineral skeleton, which prevents the blocking of aggregate grains, and the designed liquid phase demonstrated high structural viscosity and low yield stress. The performed experimental studies, the simulation of the elaborated mathematical model fully allowed for the verification of the theoretical assumptions that are the basis for the development of the method of designing self-compacting concrete.

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Influence of Fly Ash Additive on the Properties of Concrete with Slag Cement

Cited by 35 publications

References 23 publications

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

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

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

Functional Method of Designing Self-Compacting Concrete

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