Effect of Using Steel Bar Reinforcement on Concrete Quality by Ultrasonic Pulse Velocity Measurements

Nanayakkara, Ominda; Najm, ‎Hadee Mohammed; Sabri, Mohanad Muayad Sabri

doi:10.3390/ma15134565

Cited by 6 publications

(5 citation statements)

References 18 publications

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“…The SA materials consisted of irregularly shaped particles, the BF slag consisted of rounded, semi-spherical, and irregularly shaped particles and the glass fiber consisted of rounded-shape particles, as shown in Figure 17A-C. Finally, more or less similar mechanical and microstructural behaviors of waste material replacements reinforced by different types of fibers have been reported by several researchers (Horvath, 1998;Liu et al, 2006;Matsuda et al, 2008;Landa-Ruiz et al, 2021;Althoey et al, 2022;Najm et al, 2022b;Memon et al, 2022;Nanayakkara et al, 2022;Prabhath et al, 2022). Since a lower percentage of C/SA results in a specimen that does not retain its shape even after the curing period, and this value was used as 10% while making specimens for the compressive and flexural tests.…”

Section: Microstructural Analysissupporting

confidence: 66%

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Behavior of geomaterial composite using sugar cane bagasse ash under compressive and flexural loading

Nikhade

Birali²,

Ansari

et al. 2023

Front. Mater.

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The sugar industry produces a huge quantity of sugar cane bagasse ash in India. Dumping massive quantities of waste in a non-eco-friendly manner is a key concern for developing nations. The main focus of this study is the development of a sustainable geomaterial composite with higher strength capabilities (compressive and flexural). To develop this composite, sugarcane bagasse ash (SA), glass fiber (GF), and blast furnace slag (BF) are used. Ash generated from burning sugar cane in the sugar industry is known as sugar cane bagasse. To check the suitability of this secondary waste for use in civil engineering and to minimize risk to the environment in the development of sustainable growth, a sequence of compressive and flexural strength tests was performed on materials prepared using sugar cane bagasse ash (SA) reinforced by glass fiber (GF) in combination with blast furnace slag (BF) and cement (CEM). The effects of the mix ratios of glass fiber to bagasse ash (0.2%–1.2%), blast furnace slag to the weight of bagasse ash (10%), cement binding to bagasse ash (10%–20%), and water to sugar cane bagasse ash (55%) regarding the flexural strength, compressive strength, density, tangent modulus, stress–strain pattern, and load–deflection curve of the prepared materials were studied. According to the findings, compressive strength achieved a maximum strength of 1055.5 kPa and ranged from 120 to 1055.5 kPa, and the flexural strength achieved a maximum strength of 217 kPa and ranged from 80.1 to 217 kPa at different mix ratio percentages. The value of the initial tangent modulus for the cube specimens ranged between 96 and 636 MPa. For compression specimens with 20% cement, the density decreased from 1320.1 to 1265 kg/m3, and the flexural strength decreased from 1318 to 1259.6 kg/m3. With limitation in lower percentages of C/SA, the specimen cannot sustain its shape even after curing period. In comparing the previous research with the present experimental work, it was observed that the material proposed here is lightweight and can be utilised as a filler substance in weak compressible soils to improve their load-bearing capacity.

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Section: Microstructural Analysissupporting

confidence: 66%

“…However, the flexural strength increased with an increase in the percentage of glass fiber up to a certain extent. The highest or optimum value of the mix ratio was found to be 0.8%, at which the flexural strength was the maximum in all cases (Najm et al, 2022b;Nanayakkara et al, 2022).…”

Section: Figure 13mentioning

confidence: 99%

Behavior of geomaterial composite using sugar cane bagasse ash under compressive and flexural loading

Nikhade

Birali²,

Ansari

et al. 2023

Front. Mater.

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“…This study aims to analyze and answer a lot of worries concerning the viability of FA-GP concrete as the next-generation sustainable concrete. Numerous investigators that presented evaluations on FA-GP concretes discovered that the strength characteristics of the FA-GP concrete might be equal, if not considerably higher, compared to those of PC concrete [ 54 , 55 ]. Furthermore, the application of FA-GP concrete technologies may give environmental and economic benefits.…”

Section: Significance Of Studymentioning

confidence: 99%

Fly Ash-Based Geopolymer Composites: A Review of the Compressive Strength and Microstructure Analysis

et al. 2022

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Geopolymer (GP) concrete is a novel construction material that can be used in place of traditional Portland cement (PC) concrete to reduce greenhouse gas emissions and effectively manage industrial waste. Fly ash (FA) has long been utilized as a key constituent in GPs, and GP technology provides an environmentally benign alternative to FA utilization. As a result, a thorough examination of GP concrete manufactured using FA as a precursor (FA-GP concrete) and employed as a replacement for conventional concrete has become crucial. According to the findings of current investigations, FA-GP concrete has equal or superior mechanical and physical characteristics compared to PC concrete. This article reviews the clean production, mix design, compressive strength (CS), and microstructure (Ms) analyses of the FA-GP concrete to collect and publish the most recent information and data on FA-GP concrete. In addition, this paper shall attempt to develop a comprehensive database based on the previous research study that expounds on the impact of substantial aspects such as physio-chemical characteristics of precursors, mixes, curing, additives, and chemical activation on the CS of FA-GP concrete. The purpose of this work is to give viewers a greater knowledge of the consequences and uses of using FA as a precursor to making effective GP concrete.

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“…When it refers to the mechanical behaviour of concrete, SF is, by far, the best fibre when compared to other industrial fibres. SF has a high tensile strength of more than 1,200 MPa and an elastic modulus of around 200 GPa (Najm et al, 2022b;Nanayakkara et al, 2022). The research has developed a paradigm that supports the feasibility of SF as an outstanding reinforcing material with good tensile, compressive, modulus of rupture, and shear strengths (Alabduljabbar et al, 2019;Tayeh et al, 2022b Ahmed et al, 2022).…”

Section: Introductionmentioning

confidence: 98%

Effect of thermal cycles on the engineering properties and durability of sustainable fibrous high-strength concrete

Hakeem

Hosen²,

Alyami³

et al. 2023

Front. Mater.

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In this research, the effect of heat–cool cycles (HCCs) on high-strength concrete (HSC) containing steel fibres (SFs), polypropylene fibres (PPFs), and date palm fibres (DPFs), which were named fibrous high-strength concrete (FHSC), was studied. To produce FHSC, three doses of 0.2, 0.6, and 1 percent of each fibre were used. All samples were tested after 28 days of normal water curing and 270 days of exposure to HCCs (continuing the authors’ project and research published at 28 and 180 days). This entails heating for 2 days at 60 C in the oven and cooling for another 2 days at room temperature for 270 days. The experiment’s findings revealed that fibre reinforcement in concrete enhances its strength and durability. By incorporating the three types of fibres into high-strength concrete, with and without HCCs, the modulus of rupture was significantly increased. In both conditions, including with or without the implementation of HCCs, incorporating the three fibre types into the HSC showed a significant increase in toughness. As a result, natural date palm fibres can produce sustainable FHSC that can withstand harsh environmental conditions. Moreover, compared to the previous study conducted by the authors at 180 days, there is a slight severity in both the pattern of decrease and increase of the studied characteristics at 270 days caused by the effect of thermal cycles and fibres.

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Effect of Using Steel Bar Reinforcement on Concrete Quality by Ultrasonic Pulse Velocity Measurements

Cited by 6 publications

References 18 publications

Behavior of geomaterial composite using sugar cane bagasse ash under compressive and flexural loading

Behavior of geomaterial composite using sugar cane bagasse ash under compressive and flexural loading

Fly Ash-Based Geopolymer Composites: A Review of the Compressive Strength and Microstructure Analysis

Effect of thermal cycles on the engineering properties and durability of sustainable fibrous high-strength concrete

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