Cow Dung Ash in Mortar: An Experimental Study

Worku, Muluken Alebachew; Taffese, Woubishet Zewdu; Hailemariam, Behailu Zerihun; Yehualaw, Mitiku Damtie

doi:10.3390/app13106218

Cited by 8 publications

(5 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to [59], this heightened formation of C-S-H gels could potentially account for the elevated compressive strength and favorable FTIR spectra in these particular mixtures [59]. However, with the progression of the TARC replacement percentage, there was a discernible presence of partially unreacted particles, observed particularly in the T30 and T50 compositions, indicated by a peak around 455 cm −1 [60], in contrast to the other blends.…”

Section: Ftirmentioning

confidence: 96%

See 1 more Smart Citation

Enhancing Mortar Properties through Thermoactivated Recycled Concrete Cement

Getachew,

Yifru,

Taffese

et al. 2023

Buildings

Self Cite

View full text Add to dashboard Cite

The effects of thermoactivated recycled concrete cement (TARC) on mortar as a partial replacement for cement was examined. TARC is derived from concrete waste through a series of processes. Different mortar mixtures were tested, ranging from 0% to 50% TARC in 10% increments. A comprehensive range of tests was conducted to assess the properties of the mortar, including fresh, mechanical, microstructure, and durability evaluations. The fresh test indicated that the incorporation of TARC impacted the flow of mortar, leading to reduced workability as the percentage of replacement increased. Regarding mechanical performance, using 20% TARC resulted in improved compressive strength, bulk density, and ultrasonic pulse velocity (UPV). Microstructural analysis using thermogravimetry, scanning electron microscopy, and Fourier transform infrared spectroscopy (FTIR) revealed that the TARC mix exhibited advantageous thermal properties, enhanced FTIR spectra, and a denser microstructure, thereby enhancing the durability of the mortar. Overall, substituting OPC with TARC significantly reduces the carbon footprint associated with cement production, promoting sustainability and contributing to a circular economy in the construction industry.

show abstract

Section: Ftirmentioning

confidence: 96%

“…10 depicts the DTA and TGA curves for the T0 and T20 mixes. Each curve exhibited seven distinctive peaks, indicative of the major hydration products [60]. A notable reduction in mass between 450 and 510 • C was identified, correlating with the premature formation of C-H arising from CaO rehydration.…”

Section: Ftirmentioning

confidence: 96%

Enhancing Mortar Properties through Thermoactivated Recycled Concrete Cement

Getachew,

Yifru,

Taffese

et al. 2023

Buildings

Self Cite

View full text Add to dashboard Cite

show abstract

“…The porosity structure of CDA and CSA particles results in more excellent absorption of mixing water inside the mixture, especially as the amount of CDA and CSA increases. To compensate for the reduced workability produced by CDA and CSA, a larger superplasticizer is necessary to maintain the optimum workability of the mortar [1].…”

Section: Effect Of Cda and Csa On Workabilitymentioning

confidence: 99%

“…Construction and building industries, mainly concrete, are crucial for economic development, particularly in emerging markets, but their reliance on natural resources contributes significantly to global CO2 emissions [1]. Concrete production for road, bridge, tunnel, residential, dam, and flood defenses is 14 billion cubic meters annually, with Portland cement being the primary binder, contributing 8% to global CO2 emissions [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Sustainable Concrete Production: Utilizing Cow Dung Ash and Corn Stalk Ash as Eco-Friendly Alternatives

Jamwal,

Nautiyal,

Singh

et al. 2024

Civ Eng J

View full text Add to dashboard Cite

This study aims to determine whether it is feasible to replace conventional materials used in manufacturing concrete with waste materials, namely cow dung ash and corn stalk ash. This study proposes to assess the possibility of using these agricultural by-products to improve the sustainability of concrete while simultaneously tackling the environmental issues related to the manufacture of conventional concrete. The research aims to assess the mechanical qualities, optimize the mix proportions, and examine the ecological implications of using these substitute materials. This research aims to mitigate environmental challenges like carbon dioxide emissions, resource depletion, and the accumulation of agricultural waste by combining agricultural waste and lowering dependency on traditional cement. The study investigates the use of cow dung ash (CDA) and corn stalk ash (CSA) as alternatives for conventional Portland cement (OPC) in mortar mixes at varying quantities, ranging from 5% to 25% CDA and 2.5% to 10% CSA. Chemical composition reveals that CDA and CSA predominantly comprise O, Mg, Al, Si, P, K, and Ca. The workability, hardened characteristics, and microstructure of CDA and CSA were assessed. Increasing CDA and CSA percentages reduced mortar workability; nevertheless, replacing 8% to 10% CDA and 7.5% CSA maintained compressive, tensile, and flexural strengths comparable to control mixes. However, more significant CDA and CSA proportions resulted in lower mortar strength. For example, 10% CDA-enriched mortar had a compressive strength of 31.77 N/mm2, a tensile strength of 3.42 N/mm2, and a flexural strength of 3.61 N/mm2, whereas 7.5% CSA-enriched mortar had a compressive strength of 28.4 N/mm2, a tensile strength of 3.04 N/mm2, and a flexural strength of 3.7 N/mm2. According to the findings, CDA and CSA can replace OPC by up to 10% and 7.5% in mortar manufacturing, making cementitious material alternatives viable. Doi: 10.28991/CEJ-SP2024-010-02 Full Text: PDF

show abstract

“…The use of cow dung has been mainly used for agriculture and as a biomass for energy production [ 9 ], but other new applications have been tested, such as the use of cow dung fibers for reinforced friction composites [ 10 ], the use of adding cow dung ashes on cement mortars and concrete instead of fly ash [ 11 , 12 ] and also the use of adding cow dung on earth building products such as masonry units, mortars and plasters. In fact, despite still being a field lacking research, since the 1990s it has been possible to find some published work on the effects of cow dung additions in earth building.…”

Section: Introductionmentioning

confidence: 99%

Effect of Cow Dung Additions on Tropical and Mediterranean Earth Mortars-Mechanical Performance and Water Resistance

Pachamama,

Faria,

Rezende

et al. 2024

Materials

View full text Add to dashboard Cite

Cow dung (CD) is a material that has been used for millennia by humanity as a stabilizer in earth building techniques in vernacular architecture. However, this stabilization has been little addressed scientifically. In this study, the effect of CD additions was assessed on earth mortars produced with one type of earth from Brazil and two other types from Portugal (from Monsaraz and Caparica). The effect of two volumetric proportions of CD additions were assessed: 10% and 20% of earth + sand. The German standard DIN 18947 was used to perform the physical and mechanical tests, and classify the mortars. In comparison to the reference mortars without CD, the additions reduced linear shrinkage and cracking. An increase in flexural and compressive strengths was not observed only in mortars produced with earth from Monsaraz. In mortars produced with the earth from Caparica, the addition of 10% of CD increased flexural strength by 15% and compressive strength by 34%. For mortars produced with the earth from Brazil, the addition of 10% of CD increased these mechanical strengths by 40%. The increase in adhesive strength and water resistance promoted by the CD additions was observed in mortars produced with all three types of earth. Applied on ceramic brick, the proportion of 10% of CD increased the adherence by 100% for the three types of earth. Applied on adobe, the same proportion of CD also increased it more than 50%. For the water immersion test, the CD additions made possible for the mortar specimens not to disintegrate after a 30 min immersion, with the 20% proportion being more efficient. The effects of the CD on mechanical performance, including adhesion, were more significant on the tropical earth mortars but the effects on water resistance were more significant on the Mediterranean earthen mortars. CD has shown its positive effects and potential for both tropical and Mediterranean earthen plasters and renders tested, justifying being further studied as an eco-efficient bio-stabilizer.

show abstract

Cow Dung Ash in Mortar: An Experimental Study

Cited by 8 publications

References 28 publications

Enhancing Mortar Properties through Thermoactivated Recycled Concrete Cement

Enhancing Mortar Properties through Thermoactivated Recycled Concrete Cement

Sustainable Concrete Production: Utilizing Cow Dung Ash and Corn Stalk Ash as Eco-Friendly Alternatives

Effect of Cow Dung Additions on Tropical and Mediterranean Earth Mortars-Mechanical Performance and Water Resistance

Contact Info

Product

Resources

About