Optimizing of the Cementitious Composite Matrix by Addition of Steel Wool Fibers (Chopped) Based on Physical and Mechanical Analysis

Amer, Akrm A Rmdan; Abdullah, Mohd Mustafa Al Bakri; Yun-Ming, Liew; Aziz, Ikmal Hakem; Wysłocki, J.J.; Tahir, Muhammad Faheem Mohd; Sochacki, Wojciech; Garus, S.; Gondro, J.; Amer, Hetham A. R.

doi:10.3390/ma14051094

Cited by 8 publications

(2 citation statements)

References 33 publications

(48 reference statements)

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“…Lower water absorption in reinforced specimens indicates lower environmental harm, confirming the matrices’ lower permeability. With the addition of fibers beyond 2%, due to the uneven distribution of fibers in the concrete matrix, the volume of pores increased, consequently reducing the concrete density and providing more space in the matrix to absorb water and a higher water absorption rate [ 41 , 42 ]. The findings show that raising the fiber volume fraction changed the distribution and size of air voids in the matrices.…”

Section: Resultsmentioning

confidence: 99%

An Integrated Approach to Using Sheep Wool as a Fibrous Material for Enhancing Strength and Transport Properties of Concrete Composites

et al. 2022

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An important goal to achieve sustainable development is to use raw materials that are easily recyclable and renewable, locally available, and eco-friendly. Sheep wool, composed of 60% animal protein fibers, 10% fat, 15% moisture, 10% sheep sweat, and 5% contaminants on average, is an easily recyclable, easily renewable, and environmentally friendly source of raw material. In this study, slump testing, compressive and flexural strengths, ultrasonic pulse velocity, sorptivity, and chloride penetration tests were investigated to assess the influence of wool fibers on the strength and transport properties of concrete composites. Ordinary Portland cement was used to make five concrete mixes incorporating conventional wool fibers (WFs) ranging from 0.5 to 2.5% and a length of 70 mm. The wool fibers were modified (MWFs) via a pre-treatment technique, resulting in five different concrete compositions with the same fiber content. The addition of WF and MWF to fresh concrete mixes resulted in a decrease in slump values. The compressive strength of concrete was reduced when wool fibers were added to the mix. The MWF mixes, however, achieved compressive strength values of more than 30 MPa after a 90-day curing period. Furthermore, by including both WF and MWF, the flexural strength was higher than that of plain concrete. In addition, adding fibers with volume fractions of up to 2% reduced the concrete composite’s sorptivity rate and chloride penetration depths for both WF and MWF content mixes. Consequently, biomass waste like sheep wool could be recycled and returned to the field following the circular economy and waste valorization principles.

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Section: Resultsmentioning

confidence: 99%

An Integrated Approach to Using Sheep Wool as a Fibrous Material for Enhancing Strength and Transport Properties of Concrete Composites

et al. 2022

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“…The same can be said for reinforced composites. Combinations of these can also be found, for example, as reinforced concrete, which contains a cement matrix, sand as filler, and steel as reinforcement, as well as voids [ 3 ]. Each material has its own mechanical behavior depending on its composition and structure.…”

Section: Introductionmentioning

confidence: 99%

A New Approach to the Structure-Properties Relationships Determination for Porous Filled Reinforced Materials

2022

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This study describes a new mathematical approach to the relationship between mechanical properties (tensile modulus, ultimate strength, and strain), composition as well as structure of porous-filled reinforced composites. The composite system consisted of a polyurethane matrix, a rubber filler, and a small amount of polyethylene terephthalate as a reinforcement. The newly proposed equations are based on a special mixing rule with the same basic form for all studied properties. The mixing rule contains a correction parameter η, which differs in different filler content in the filled part of the composite. Here, a cubic exponential function including the product of suitable structural parameters and exponents ensuring the best fitting and describable by matrix properties were successfully defined to fit the different values of correction parameter. The proposed equations should be a suitable step to obtain a relationship for describing the mechanical behavior of porous-filled and reinforced composites in the case of a small amount of reinforcement.

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Study on Mechanical and Durability Properties of Aerated Concrete Block Containing Construction and Demolition Waste with Aluminium Stearate Powder Along with Alkaline Solution and Considering Accelerated Curing Tank

Anand,

Sinha,

Rajhans

2023

Iran J Sci Technol Trans Civ Eng

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Optimizing of the Cementitious Composite Matrix by Addition of Steel Wool Fibers (Chopped) Based on Physical and Mechanical Analysis

Cited by 8 publications

References 33 publications

An Integrated Approach to Using Sheep Wool as a Fibrous Material for Enhancing Strength and Transport Properties of Concrete Composites

An Integrated Approach to Using Sheep Wool as a Fibrous Material for Enhancing Strength and Transport Properties of Concrete Composites

A New Approach to the Structure-Properties Relationships Determination for Porous Filled Reinforced Materials

Study on Mechanical and Durability Properties of Aerated Concrete Block Containing Construction and Demolition Waste with Aluminium Stearate Powder Along with Alkaline Solution and Considering Accelerated Curing Tank

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