Influence of Steel Fibers on the Behavior of Light Weight Concrete Made from Crushed Clay Bricks

Zinkaah, Othman Hameed

doi:10.11648/j.ajce.20140204.11

Cited by 10 publications

(6 citation statements)

References 12 publications

(13 reference statements)

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“…According to [14] and [16], fine aggregate should not contain more than 5% sludge and not contain organic which can damage concrete. [17] A normal weight washed sand with a (4.75mm) maximum size is used as fine aggregates its use is to fill the space between coarse aggregates and provide discomfort. The graphic of the test results for fine aggregate grains is shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Testing of nutmeg shell as a lightweight concrete material in terms of volume weight and compressive strength value

Budiman¹

2021

EPI-IJE

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Lightweight concrete can be defined as a type of concrete which includes an expanding agent in that it increases the volume of the mixture while giving additional qualities such as nailibility and lessened the dead weight. The nutmeg shell has the characteristics of light and hard skin testure so that it has the potential to be used as a material for lightweight concrete. The purpose of this study is to determine the aggregate characteristic value and the compressive strength value of concrete using the DOE (department of environment) method and referring to standards SNI. Variation of use nugmet shell toward the weight volume of concrete is 10%, 20%, 30%, 40% and 50%. This research is a sample-based laboratory research and analysis of aggregate characteristics and concrete compression test. The research result shows that the use of nutmeg skin as a coarse aggregate material in the concrete mixture affects the volume weight of the concrete. The weight of the concrete gets lighter along with the higher the percentage used. The average volume weight obtained was 1810.06 kg / m3. Based on the weight of the concrete sample, it is classified as light structure, includes concrete with low density and includes lightweight aggregate concrete. The compressive strength values for the characteristics of concrete at a composition of 10%, 20% and 30% were obtained at 28.42 kg/cm2, 31.65 kg/cm2 and 32.68 kg/cm2 which increased while the use of nutmeg shells at 40% and 50% compositions was obtained. values of 29.09 kg/cm2 and 27.38 kg/cm2 decreased at the age of 28 days. The increase in the value of the compressive strength of concrete (fck') occurred starting at the composition of 20% and 30% at 10.20% and 13.03% and begin to decrease at the composition of 50% by 3.65%. Lightweight concrete from nutmeg shells has an weight of 1810,06 kg/m3 and a maximum compressive strength value of 3,2 MPa so that the concrete is in the category lightweight structure.

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Section: Resultsmentioning

confidence: 99%

Testing of nutmeg shell as a lightweight concrete material in terms of volume weight and compressive strength value

Budiman¹

2021

EPI-IJE

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“…The flexural ultimate strength for a thin-section beam was assessed with a third point loading (TPL) test [ 12 , 13 , 14 , 15 , 16 ]. The constant displacement rate used in this experiment was 2 mm × min −1 .…”

Section: Methodsmentioning

confidence: 99%

“…Zinkaah [ 13 ] found that the water absorption of lightweight concrete with steel fibers exceeded its counterpart lacking fibers, increasing from 1.31% to 9.24% when the volume of steel fibers increased from 0 to 1%. Moreover, Jhatial et al [ 14 ] elucidated the effect of hooked-end steel fibers with lengths of 25 mm and diameters of 0.5 mm on the compressive and flexural strengths of the composite and reported that a 3% steel fiber fraction reinforcement resulted in the highest compressive strength of 31.46 MPa, which was ~18.27% higher than that of the control sample; its flexural strength was 6.16 MPa, which was ~51.72% higher than that of the control sample.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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The demand for durable, resistant, and high-strength structural material has led to the use of fibers as reinforcing elements. This paper presents an investigation into the inclusion of chopped steel wool fibers (CSWFs) in cement to form a high-flexural strength cementitious composite matrix (CCM). CSWFs were used as the primary reinforcement in CCM at increments of 0.5 wt%, from 0.5–6 wt%, with ratios of cement to sand of 1:1.5 and water to cement of 0.45. The inclusion of CSWFs resulted in an excellent optimization of the physicomechanical properties of the CCM, such as its density (2.302 g/cm3), compressive strength (61.452 MPa), and maximum flexural strength (10.64 MPa), all of which exceeded the performances of other reinforcement elements reported in the literature.

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“…Including fibers with an aspect ratio of 65 causes a slight reduction in compressive strength for other concrete mixes ( WH2 and WH3). This could be attributable to the formation of air pores and voids in these mixes, both of which lower compressive strength [32].…”

Section: Compressive Strengthmentioning

confidence: 99%

Sustainable High-Performance Concrete Reinforced with Hybrid Steel Waste Fibers

Jabbar¹,

Khalil²

2022

ETJ

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Using recycled fibers as a substitute for commercial fibers was investigated.• The effect of fibers volume fraction and aspect ratio on the mechanical properties of concrete were studied. • The possibility of producing sustainable high-performance concrete using recycled coarse aggregate and recycled fibers was investigated.This research aims to study the benefit of using fibers made from waste materials in concrete and evaluate the ability to use these fibers as a substitute for commercial fibers. Different aspect ratios of alternative fibers formed from cut steel tied wire waste were utilized. This material is selected because of its low price and wide availability. Two concrete mixes with 15% waste crushed clay brick coarse aggregate reinforced with different volume fractions of 1.0 and 1.5% and an aspect ratio of 40 were prepared. Also, three concrete mixes reinforced with a hybrid aspect ratio of 40 and 65 of tied wire waste steel fibers (TWWSF) with different volume fractions of 1.0% and 1.5% were prepared. The compressive, splitting tensile, flexural strengths, and ultrasonic pulse velocity (UPV) of all prepared concrete mixes were tested. The results illustrate that the inclusion of tied wire waste steel fibers significantly enhances the strength of concrete with 15% waste crushed clay brick coarse aggregate, and highperformance concrete with compressive strength of up to 85 MPa can be produced. The enhancement in compressive, splitting, and flexural strengths were 29%, 42.8%, and 38%, respectively, for concrete reinforced with a fiber aspect ratio of 40 and volume fraction of 1.5%. In comparison, for the same volume fraction, the percentage was 22%, 48%, and 44%, respectively, for equal content of hybrid aspect ratio of 40 and 65.

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Influence of Steel Fibers on the Behavior of Light Weight Concrete Made from Crushed Clay Bricks

Cited by 10 publications

References 12 publications

Testing of nutmeg shell as a lightweight concrete material in terms of volume weight and compressive strength value

Testing of nutmeg shell as a lightweight concrete material in terms of volume weight and compressive strength value

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

Sustainable High-Performance Concrete Reinforced with Hybrid Steel Waste Fibers

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