Mechanical Properties and Durability Performance of Concrete Containing Calcium Carbide Residue and Nano Silica

Adamu, Musa; Ibrahim, Yasser E.; Al‐Atroush, Mohamed Ezzat; Alanazi, Hani

doi:10.3390/ma14226960

Cited by 21 publications

(8 citation statements)

References 51 publications

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“…There are several works devoted primarily to solving environmental and economic problems through the disposal of various types of waste by using them in building materials [3,5,[12][13][14][15][16]19,[25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40]. In addition, there are works related to the improvement of the properties of composite building materials, products, structures, and first, concretes due to their nano-modification [41][42][43][44][45][46][47][48][49][50][51][52][53][54][55].…”

Section: Characteristics Of Concretes and Mortarsmentioning

confidence: 99%

Enhanced Eco-Friendly Concrete Nano-Change with Eggshell Powder

et al. 2022

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One of the unifying factors for all countries is the large consumption of chicken, and other, eggs in food and other types of economic activity. After using various types of eggs for their intended purpose, a large amount of waste accumulates in the form of eggshells. Currently, this problem exists and needs a non-trivial, original solution. The aim of the work was to fill the scientific gap in the direction of studying the microstructure formation of improved nano-modified environmentally-friendly concrete based on eggshell powder and obtaining a concrete composition for the manufacture of an industrial sample of such a material. An environmentally-friendly concrete was obtained, the characteristics of which were improved relative to standard concrete by modifying it with eggshell powder, for which the optimal dosage was determined. The most effective was the replacement of part of the cement with eggshell powder in the amount of 10%. The maximum increase in strength characteristics ranged from 8% to 11%. The modulus of elasticity increased by 4% compared to the control samples without eggshell powder. The maximum reduction in deformations under axial compression and tension in comparison with the control values ranged from 5% to 10%. The study of the composite’s microstructure nano-modified with eggshell powder, and an analysis of the changes occurring in this microstructure due to nano-modification, confirmed the improvement in characteristics and the optimal dosage of eggshell powder.

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Section: Characteristics Of Concretes and Mortarsmentioning

confidence: 99%

Enhanced Eco-Friendly Concrete Nano-Change with Eggshell Powder

et al. 2022

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“…The high price of nano materials has limited their use as construction materials, regardless of their huge benefits [19,86,[105][106][107][108][109][110][111][112][113][114]. Cost of nanoparticles is roughly 1000× higher than the cost of the cement, which is the most expensive constituent of cement-based materials.…”

Section: Cost Effectiveness Of Use Of Nt In Cementitious Compositesmentioning

confidence: 99%

A review of the effect and optimization of use of nano-TiO2 in cementitious composites

Döndüren¹,

Al-Hagri²

2022

Res. Eng. Struct. Mat.

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There are some problems and weaknesses related to cement-based materials, such as their very low tensile strength, low chemical resistance and the huge contribution of cement production to industrial CO2 emissions. One possible method to reduce the impacts of such problems is the partial replacement of cement in cementitious materials with nano materials. This work provides a detailed review of incorporation of one of the most widely used nano materials, namely nano-titanium dioxide, and its effect on the properties of cementitious composites. Different properties have been considered in the current study, such as fresh properties, mechanical properties (compressive strength, split tensile strength and flexural strength), durability (permeability, ultrasonic pulse velocity (UPV), electrical resistivity, carbonation resistance, freeze and thaw resistance and sulfate attack resistance) and microstructural properties. This paper also investigates the optimum content of nano-TiO2 in cement-based materials. Moreover, the cost effectiveness of use on nano-titania in cementitious composites has been discussed. Nano titania reduces the workability and setting time of cement-based materials. It can be very effective in improving the mechanical properties, durability and microstructural properties of cementitious composites.

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“…The reduction in water absorption due to the addition of CCW can be attributed to its finer sizes, thereby acting as a filler material and filling the pores created by the CR and, hence, reducing the water absorption. Another reason could be the higher reactivity of CCW, thereby allowing it to react with cement hydration products to form more C-S-H gels, which filled the nanopores in the cement matrix and, hence, reduced the water absorption [4,6]. By comparing Figure 11 with Figure 12, it can be seen that for the SCC with fly ash, mixes with same amount of CR and CCW had lower water absorption values compared to the SCC mixes without fly ash with the same amount CR and CCW.…”

Section: Water Absorptionmentioning

confidence: 99%

“…Calcium carbide is a dangerous and corrosive waste material obtained as a by-product during the production of acetylene (C 2 H 2 ) gas [4][5][6], whereas crumb rubber (CR) is produced from used tires (waste tires) that have been abandoned at mechanic shops and dumpsites [7]. On the other hand, fly ash is a waste material generated from coal-fired electric-and steam-generating plants during coal combustion.…”

Section: Introductionmentioning

confidence: 99%

Durability Performance of Self-Compacting Concrete Containing Crumb Rubber, Fly Ash and Calcium Carbide Waste

et al. 2022

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Waste tire disposal continues to pose a threat to the environment due to its non-biodegradable nature. Therefore, some means of managing waste tires include grinding them to crumb rubber (CR) sizes and using them as a partial replacement to fine aggregate in concrete. However, the use of CR has a series of advantages, but its major disadvantage is strength reduction. This leads to the utilization of calcium carbide waste (CCW) to mitigate the negative effect of CR in self-compacting concrete (SCC). This study investigates the durability properties of SCC containing CR modified using fly ash and CCW. The durability properties considered are water absorption, acid attack, salt resistance, and elevated temperature of the mixes. The experiment was conducted for mixes with no-fly ash content and their replica mixes containing fly ash to replace 40% of the cement. In the mixes, CR was used to partially replace fine aggregate in proportions of 0%, 10%, and 20% by volume, and CCW was used as a partial replacement to cement at 0%, 5%, and 10% by volume. The results indicate that the mixes containing fly ash had higher resistance to acid (H2SO4) and salt (MgSO4), with up to 23% resistance observed when compared to the mix containing no fly ash. In addition, resistance to acid attack decreased with the increase in the replacement of fine aggregate with CR. The same principle applied to the salt attack scenario, although the rate was more rapid with the acid than the salt. The results obtained from heating indicate that the weight loss was reduced slightly with the increase in CCW, and was increased with the increase in CR and temperature. Similarly, the compressive strength was observed to slightly increase at room temperature (27 °C) and the greatest loss in compressive strength was observed between the temperature of 300 and 400 °C. However, highest water absorption, of 2.83%, was observed in the mix containing 20% CR, and 0% CCW, while the lowest water absorption, of 1.68%, was found in the mix with 0% CR, 40% fly ash, and 10% CCW. In conclusion, fly ash is recommended for concrete structures immersed in water, acid, or salt in sulphate- and magnesium-prone areas; conversely, fly ash and CR reduce the resistance of SCC to heat beyond 200 °C.

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Mechanical Properties and Durability Performance of Concrete Containing Calcium Carbide Residue and Nano Silica

Cited by 21 publications

References 51 publications

Enhanced Eco-Friendly Concrete Nano-Change with Eggshell Powder

Enhanced Eco-Friendly Concrete Nano-Change with Eggshell Powder

A review of the effect and optimization of use of nano-TiO2 in cementitious composites

Durability Performance of Self-Compacting Concrete Containing Crumb Rubber, Fly Ash and Calcium Carbide Waste

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