BSc. - Building and Construction Techniques Engineering

MSc. - Construction Materials Techniques Engineering

IOM (International Organization for Migration) [Quality Control Engineer]

Quality Control Engineer
International Organization for Migration (IOM)
01 September 2018 – 31 March 2022

Supervised, monitored, and inspected construction works executed by contractors to ensure compliance with project specifications, drawings, and quality standards. Provided technical advice and on-site consultations to improve construction practices and achieve the required quality without causing project delays. Prepared and reviewed engineering drawings, cost assessments, and Bills of Quantities (BoQs) for various projects. Contributed to the structural design and execution of the X-ray facility at the Rabia border point. Designed steel structures for multiple infrastructure and building projects.

Première Urgence Internationale (PUI) [Rehabilitation Officer]

Conducted technical assessments and prepared Bills of Quantities (BoQs) for rehabilitation works at Ibn Sina Hospital. Evaluated and shortlisted qualified contractors and companies eligible to execute the rehabilitation works. Supported project implementation by coordinating technical requirements and ensuring compliance with project specifications.

Qatar Red Crescent (QRC) [WASH Site Engineer]

Worked as a WASH Site Engineer at Salamiyah Camp and Nimrud in Mosul City. Led and supervised four operational teams: water distribution, maintenance, solid waste management (garbage collection), and greywater drainage systems. Managed and directed approximately 40 workers on a daily basis, ensuring efficient task allocation and safe working practices. Assessed direct and indirect beneficiary needs related to access to WASH facilities and community services, with particular attention to vulnerable groups. Conducted daily monitoring of construction activities and water quality, ensuring compliance with technical standards and timely implementation of project works.

Consulting Office, Engineering Technical College of Mosul [Field Laboratory Engineer]

Worked as a Field Laboratory Engineer and Concrete Laboratory Manager for a waste treatment plant project. Conducted comprehensive testing of concrete and construction materials in accordance with relevant standards. Gained extensive experience in laboratory equipment operation, quality control procedures, and mix design for conventional and special concrete.

Jihad Engineering Bureau [Civil Engineer]

Managed and supervised construction works both in the office and on site. Performed structural analysis and design of concrete and steel-reinforced structures, including preparation of execution drawings. Led construction teams, ensured worker safety, and maintained quality control throughout project execution. Responsible for project financial management, including cost estimation, receipts, payments, and overall accounting activities.

Freelance [Civil Engineer]

Worked as a freelance design, execution, and supervision engineer on various residential and educational projects. Designed and supervised the construction of houses, villas, and schools, primarily in Mosul, with design projects also completed in Duhok. Performed structural analysis and design of multi-storey buildings using engineering software, including preparation of detailed structural and reinforcement drawings.

Sustainable high-strength cement mortar: synergistic of fiber reinforcement and partial aggregate replacement

Journal Innovative Infrastructure Solutions

publisher Springer Nature

DOI https://doi.org/10.1007/s41062-025-02107-6

Issue 302

Volume 10

The construction sector heavily relies on natural resources and significantly impacts environmental degradation, underscoring the urgent need for sustainable building materials. Recent efforts prioritize enhancing the performance of cement-based products while reducing their ecological footprint. Sustainable High-Strength Cement Mortar (SHSCM) has gained prominence due to its superior mechanical properties, yet traditional formulations often rely heavily on non-renewable resources, resulting in substantial carbon emissions. This research addresses the dual objective of optimizing the mechanical properties of SHSCM while promoting sustainability through the innovative use of waste materials. Specifically, this study investigates the incorporation of ceramic waste (CW) as a partial replacement for fine aggregates, alongside the reinforcement of glass fibers (GF), to explore their synergistic effects on the mechanical performance of the mortar. By examining various combinations of CW (10%, 20%, and 30%) and GF (2%, 4%, and 6%). Preliminary results indicate that the inclusion of up to 30% CW not only enhances compressive and flexural strengths but also highlights the challenges posed by increased fiber content on workability. According to the multi criteria decision making (MCDM) framework, that is represented by technique for order of preference by similarity to ideal solution (TOPSIS). This method helps decision-makers assess options by comparing how close they are to the best possible solution and how far they are from the worst possible outcome, providing a well-rounded evaluation of each choice. TOPSIS identified mix M7 (30% CW and 2% GF) was the optimal formulation confirming it achieved the highest compressive and flexural strength while maximizing CW efficiency. This paper ultimately seeks to contribute to the field of sustainable construction materials by demonstrating that effective valorization of waste materials can lead to the development of high-performance, environmentally friendly cement mortars, paving the way for more sustainable building practices.

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Assessing the effects of copolymer modifier addition on asphalt attributes: Towards achieving performance optimization

Journal Construction and Building Materials

publisher Elsevier

DOI https://doi.org/10.1016/j.conbuildmat.2024.135645

Volume 420

The use of polymers to modify asphalt binders has become a widely accepted practice in modern pavement construction, offering a promising solution to address key factors contributing to asphalt pavement deficiencies. These factors include issues such as rutting, moisture-induced deterioration, and fatigue-related wear. The copolymer referred to as PGXpand was utilized as the modifying additive for the virgin binder in this study. It demonstrates exceptional performance in terms of high-temperature resilience and resistance to rutting. The impact of incorporating the PGXpand on asphalt properties was investigated. A comprehensive series of tests were conducted, covering storage stability, penetration, softening point, ductility, viscosity, and elastic recovery. Further analyses involved calculations of stiffness modulus, complex modulus, and phase angle. Mechanical and performance evaluations were also carried out, including Marshall properties, moisture susceptibility, creep compliance, and Kim tests. The results demonstrate the effectiveness of the PGXpand in enhancing asphalt performance, with modified mixtures exhibiting significant improvements compared to their unmodified counterparts. Consequently, integrating the PGXpand into asphalt technology emerges as a highly promising approach for optimizing road infrastructure, especially in regions with high-temperature conditions. Ultimately, such integration contributes substantially to the development of sustainable and resilient transportation networks.

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The effect of multi-walled carbon nanotubes on mechanical properties and water adsorption of lightweight foamed concrete

Journal Res. Eng. Struct. Mater

DOI http://dx.doi.org/10.17515/resm2024.86ma1119rs

Issue 3

Volume 10

performance characteristics of lightweight foamed concrete (LFC). The method involves saturating quartz sand with a solution containing a catalyst for carbon nanotube (CNT) growth, followed by the subsequent chemical vapor deposition (CVD) synthesis of CNTs. Evaluation of nanomodified sand samples was conducted using SEM and TEM, thermogravimetry, Raman spectroscopy, and XRD. Compression and flexural strength tests of (LFC) specimens indicated that the optimal proportion of nanomodified sand introduced is 1% by weight with a particle size of 0.16 mm. This resulted in a notable 35% increase in compressive strength and an approximately 32% improved in flexural strength. Furthermore, the modified sample with CNT-based sand exhibited a 27% reduction in water absorption. The paper also presents a potential mechanism to explain the imp

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Green fibers-reinforced cement mortar with the inclusion of nano-CaCO3 and metakaolin

Journal Engineering Transactions

DOI http://dx.doi.org/10.24423/EngTrans.3206.2024

Issue 1

Volume 72

Over the previous few decades, there has been a noticeable increase in interest in the use of vegetable fibers and supplemental cementitious elements in mortar and concrete. The date palm frond was utilized in this study to create date palm fibers (DPF), which were then added to the cement mortar at percentages of 1%, 2%, 3%, 4%, and 5% by cement weight. There were two types of DPFs used: one type was untreated, and the other had a mechanical treatment that created holes before applying a layer of polychloroprene (neoprene) on the surface. Metakaolin (MK) and nano calcium carbonate (nano-CaCO3) were added to the cement mortar by the weight of cement. MK was replaced by 10% of the weight of cement. Besides, the nano-CaCO3 was replaced by 1%, 2%, 3%, and 4% of the weight of cement. Mechanical tests for flowability, compressive strength, and flexural strength were conducted. In addition, one MCDM methodology called VIKOR is utilized to choose the best combination out of several combinations and criteria. The results indicate that a higher DPF concentration enhances both compressive and flexural strength. The mixtures with the DPF coating and mechanical treatment give the strongest and most significant results. In addition, the flowability of cement mortar decreases when the DPF concentration increases. In addition to the high content of nano-CaCO3 in cement mortar, given the grater reading of strength, the presence of nano-CaCO3 in cement mortar reduces the disparity in result values that have a higher DPF content. The mixtures containing 4% and 5% DPF and 3% and 4% nano-CaCO3 are the optimal ones, according to the VIKOR technique.

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Synergistic effect of the silica fume and glass powder as pozzolanic materials in cement mortar

Journal International Journal of Sustainable Building Technology and Urban Development

publisher Sustainable Building Research Center (ERC) Innovative Durable Building and Infrastructure Research Center

DOI https://doi.org/10.22712/susb.20240004

Issue 1

Volume 15

The cement industry is currently grappling with numerous challenges, primarily stemming from substantial emissions of greenhouse gases, intensive energy utilization, and excessive exploitation of natural resources. Consequently, the prospect of substituting waste materials for virgin raw materials emerges as a viable solution to address environmental issues while simultaneously mitigating the consumption of Earth’s finite resources. Within the scope of this investigation, waste glass powder (GP) derived from end-of-life fluorescent lamps and silica fume (SF) were employed as pozzolanic substances to partially replace Portland cement (PC). The experimental procedures encompassed evaluations of flowability, density, compressive strength, direct tensile strength, and flexural strength at 7, 28, and 90 days, in conjunction with scanning electron microscopy (SEM) and X-ray diffraction (XRD) analyses. According to the results, the contribution of SF and GP with cement led to improve the mechanical properties of cement mortar. The 5% was the appropriate proportion for both of SF and GP which were used as pozzolanic materials. Furthermore, this studyproposes an alternative method for reusing hazardous waste by directly incorporating GP without prior washing to reduce mercury content. This approach aims to decrease the use of Portland cement (PC), thus promoting environmental sustainability and resource efficiency.

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Cement mortar reinforced by date palm fibers and inclusion metakaolin

Journal International Journal of Sustainable Building Technology and Urban Development

publisher Sustainable Building Research Center (ERC) Innovative Durable Building and Infrastructure Research Center

DOI https://doi.org/10.22712/susb.20230026

Volume 14

Palm frond waste as fibers to reduce the amount of waste produced annually. Additionally, the incorporation of palm fibers into cement mortar can help to mitigate the impact of agricultural waste on the environment and make it more cost-effective. Metakaolin (MK) as a type of clay abundant in Iraq and replaced by weight of cement. The date palm frond used as fibers and known a date palm fibers (DPF). The volume fraction 0.5%, 1%, 2% and 3% of DPF used by cement weight. Alongside, the DPF treated in three method before adding to the mix, where that are by NaOH 24 hrs, Na OH 48 hrs and mechanical treatment (by making random holes in the frond). The mechanical properties of cement mortar reinforced by DPF containing MK was done that consist of compressive strength, flexural strength, and flowability. Additionally, the multi-attribute decision-making methods (MADM) included to analyze the results and assign the importance mix. MOORA method that used to giving the required mix depending on the alternatives. The results revealed enhancing in the compressive and flexural strength by increasing the DPF content, and showed the greatest values at low dosage of DPF especially at 0.5% and 1% of DPF. The flowability was slightly reduced by DFP content. The treatment of DPF by NaOH 48 hours and mechanical treatment have significant influences on compressive and flexural strength.

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Mechanical properties of lightweight green concrete including nano calcium carbonate

Journal Journal of Building Pathology and Rehabilitation

publisher Springer Nature

DOI https://doi.org/10.1007/s41024-022-00247-1

Issue 3

Volume 8

Green concrete is concrete taking waste materials within its constituents. Researchers seek always to develop this kind of concrete in order to produce higher performance of using. This research pursues and emphasis on the using of nano waste material to enhance the properties of lightweight concrete and get lightweight green concrete. Aluminum powder has been used to obtain lightweight concrete (aerated concrete). Nano calcium carbonate (Nano-CaCO3) and Ceramic waste powder (CWP) used by containing 0%, 1%, 2%, 3% and 4% and 0%, 25% 50%, 75% and 100%, respectively. Nano-CaCO3 substituted by percent weight of cement, while the CWP substituted by percent weight of fine aggregate. Flowability, compressive strength and splitting tensile strength have been investigated of lightweight green concrete (LWGC). Nano-CaCO3 and CWP showed significance affecting on compressive strength and splitting tensile strength. Increasing in Nano-CaCO3 content lead to increasing on the strength of LWGC. Also, using CWP up to 25% and 50% content gave a remarkable results when comparing with other mixes. The flowability reduced with rising in Nano-CaCO3 and CWP content. MCDM procedure is used in this study to represent the optimal mix. M50-4 reflected the best mix within 25 different mixture, which means that using 50% CWP and 4% Nano-CaCO3 presented the best compressive and splitting tensile strength. M50-4 represented the optimal using up of the wastes materials (CWP and Nano-CaCO3).

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Thermal Treatment Influence of Metakaolin on the Concrete Properties

Journal Journal of Pharmaceutical Negative Results

DOI https://doi.org/10.47750/pnr.2022.13.S01.220

Issue 1

Volume 13

The research seeks to study the thermal treatment influence of Metakaolin (M.K.) on concrete properties by different degrees of thermal treatment. The different degrees of thermal treatment are 0, 300, 500, 700, and 900 °C of Kaolin and select the optimum treatment degree to be more activated. In addition, the research included studying the effect of the M.K. on concrete properties. The M.K. added by weight of cement in percentages of 5%, 10%, 15%, and 20%. The results viewing adding the M.K. to the concrete significantly affects concrete properties compared with the control mix. Additionally, the thermal degree of 700 °C and 5% M.K. content progressed the compressive and splitting tensile strength. At the same time, the highest density was recorded at thermal degree 700 °C and 15% M.K. content. Also, the water absorption was reduced at thermal degree 700 °C and 20% M.K. content.

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Safe Hubs during Earthquakes & Emergency Events

Journal International Journal of the Built Environment and Asset Management

publisher Inderscience

DOI https://doi.org/10.1504/IJBEAM.2021.120484

Issue 2

Volume 2

In circumstances of disasters like earthquakes, acts of war, etc., that may threaten the lives of people out on the streets of crowded cities around the world, 'Safe Hubs' aims to help these people as much as possible during panic events. In this way, we are able to protect and transfer them through underground tunnels into open areas outside the city's zone. The number and size of the tunnels depends on the population number and availability of underground spaces for each city. Cities like Tokyo, Los Angeles, Jakarta, and many others around the world have high-rise buildings and skyscrapers as well as remarkable ways of facing natural disasters like earthquakes. The city of Melbourne in Australia will be used in this study to implement the project. This research highlights the innovative design of 'safe hubs' as one of the effective solutions to save as many lives as possible in the crowded cities.

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Effect of ceramic waste powder as partial fine aggregate replacement on properties of fiber-reinforced aerated concrete

Journal Engineering Reports

publisher Wiley

DOI https://doi.org/10.1002/eng2.12134

Researchers have continuously attempted to reduce and recycle construction waste. Ceramic waste is mainly a byproduct of the manufacturing process. About 25% of the waste is produced because of dimension defects or incurring problems throughout the industrial process. This article aims to highlight the alternative uses of ceramic waste. In this research, ceramic waste at a powder status is reduced to fine aggregates. Here, ceramic waste powder (CWP) is used in different ratios of 25%, 50%, 75%, and 100% replacing the fine aggregate weight. Aluminum powder is used to obtain aerated concrete (AC). Glass fibers are added in ratios of 1%, 1.5%, and 2% of cement weight to obtain a fiber-reinforced AC. The unit weight, compressive strength, splitting tensile strength, and thermal conductivity are estimated. Furthermore, scanning electron microscopy is performed to investigate the microstructure features of the composite. The results exhibit better performance in compressive and splitting tensile strength when fine aggregates were replaced by 25% and 50% of CWP. In addition, 1.5% of GFs enhance the compressive and splitting tensile strength. In addition, increasing the CWP decreases the unit weight of fiber-reinforced AC. It is shown that CWP strongly influences the thermal conductivity of the fiber-reinforced AC, resulting in a high composite resistant to heat transmission. The technique for order preference by similarity to an ideal solution method is used to obtain the optimal mix.

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Flexural and Flexural Toughness of Fiber Reinforced Concrete- American Standard Specifications Review

Journal Global Research and Development Journal for Engineering

publisher Global Research and Development Journals

Issue 5

Volume 4

Fibers used to enhance the brittleness property of steel reinforced concrete and plain concrete, and modify the tensile strength by increasing work of fracture. Thus, the toughness measurements are valuable for assessing the post crack performance of fiber reinforced concrete (FRC). There are many international standard around the world, but this paper are focuses on review the American standard specifications via exclusive ASTM. The review involve the flexural strength testing methods and toughness testing methods for FRC. For flexural strength test, the ASTM C 78 and ASTM C 293 reviewed and compared between both, while for toughness the ASTM C 1018, ASTM C 1609, ASTM C 1399 and ASTM C 1550 reviewed. This paper also describes concisely the method for each testing and considerable advantages of these methods. Beside, abridged some limitation of these methods. All figures have been redrawn with inserted more details to be most obvious and more rich.

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Influence of Different Curing Ways on the Properties of Concrete

Journal Glob. Res. Dev. J. Eng

Volume 4

The influence of curing is immensely important on the properties of concrete, especially the complete process of the cement hydration that brings hardened concrete and more durability. In this present work comprises the comparison curing influence that by jute membrane, polypropylene (PP) sheet and ponding. The work deals with physical properties of the concrete, where cubes and cylinders used for the compressive strength and splitting tensile strength tests respectively. Cubes specimens by 150× 150× 150 mm and cylinders specimens used by size 100× 200 mm. In addition, the non-destructive test, ultrasonic and Schmidt hammer test for the specimen tested. The results indicated the ponding curing showed the superior comparing with other types of curing. Compressive strength, splitting tensile strength, Schmidt hammer and ultrasonic pulse velocity of specimen concrete showed higher value for ponding curing when evaluated with polypropylene sheet and jute membrane cu ring. Besides, the test results of specimen concrete curing by polypropylene sheet noted higher value compared with jute curing.

Size and shape effect of specimen on the compressive strength of HPLWFC reinforced with glass fibres

Journal Journal of King Saud University - Engineering Sciences

publisher Elsevier

DOI https://doi.org/10.1016/j.jksues.2015.09.003

Issue 4

Volume 29

High performance lightweight foamed concrete (HPLWFC) have a structural strength with low density and high flowability. HPLWFC is used in modern concrete technology and extensively in the construction applications of high-rise buildings, long-span concrete structures and road sub-bases among others. This present work investigated the effect of size and shape specimen on the compressive strength of HPLWFC reinforced with glass fibres. Foam agent (organic material) was used to obtain lightweight concrete. The volume fractions of the glass fibres used were: 0.0%, 0.06%, 0.2%, 0.4%, and 0.6% by total volume of concrete. The fresh properties of HPLWFC were measured by flowability and fresh density tests. In this study, the size and shape of specimens used for compressive strength were cubes by size (150 × 150 × 150, 100 × 100 × 100 and 50 × 50 × 50 mm) and cylinders by size (150 × 300 and 100 × 200 mm). The results of HPLWFC mixes showed the increase in the compressive strength for all sizes of specimens with glass fibre content. The small size of specimens gave higher compressive strength in comparison with other sizes. The disparity in the compressive strength for two sizes and shapes (cubes and cylinders) were reduced with a rise in the volume fraction of the glass fibres.

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Effect of NaCl on the Mechanical Properties of Structural Lightweight Concrete Reinforced with Fibers

Journal Walailak Journal of Science and Technology (WJST)

Issue 5

Volume 14

Foamed concrete is a versatile material that has been of great significance and been the subject of large industrial demand in recent years for a wide range of construction projects. The foam agent is used to produce lightweight concrete. In this study, the slump flow of foamed concrete was measured, along with the hardening properties of compressive strength, splitting tensile strength, and flexural strength. Glass fibers (GF) and polypropylene fibers (PPF) were used, the volume fractions of GF and PPF being 0.06, 0.2, 0.4, and 0.6 %, and 0.2, 0.6, 1, and 1.4 %, respectively. Additionally, the study focuses on saltwater curing. The saltwater used was sodium chloride solution (NaCl) in the order of 5 % concentration of NaCl in water. The results show that saltwater curing decreased the mechanical properties of, and caused degradation in, foamed concrete. However, the addition of fibers to the foamed concrete improved the performance of such concrete in saltwater curing. GF gave the best results, compared with PPF, whereas use of 0.6 % GF in foamed concrete contributed the least reduction, of 0.2, 0.25, and 0.5 %, in compressive strength, splitting tensile strength and flexural strength, respectively.

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Proportioning of Lightweight Concrete by the Inclusions of Expanded Polystyrene Beads (EPS) and Foam Agent

Journal Tikrit Journal of Engineering Sciences

DOI https://doi.org/10.25130/tjes.23.2.08

Issue 2

Volume 23

This paper illustrates the performance of lightweight concrete using various amounts of expanded polystyrene beads (EPS) and different amounts of foam agent to produce lightweight concrete. The objective of this paper is to produce lightweight concrete with good workability and strength, by different mix proportion of foam agent (0.4, 0.6, 0.8, 1, 1.2 kg/m3) and varying water cement ratio (w/c) depending on the flow. Besides, various proportions using different percentages of EPS in order of volume fractions are used. The flow range used in the study is 110-130%. Each mix proportion is tested for compressive strength, modulus of rupture, density and voids ratio. The results gives acceptable ranges of strength for lightweight concrete produced by the inclusions of EPS beads and foam concrete. Therefore, the lightweight concrete produced in this work can be used for structural applications like multistory building frames, floors, bridges and prestressed or precast elements.

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Toughness behaviour of high‐performance lightweight foamed concrete reinforced with hybrid fibres

Journal Structural concrete

publisher WILEY‐VCH Verlag

DOI https://doi.org/10.1002/suco.201400087

Issue 4

Volume 16

Lightweight foamed concrete (LWFC) is a concrete having structural strength with lightweight density and high flowability. High-performance lightweight foamed concrete (HPLWFC) is used in modern concrete technology and intensively in the construction of high-rise buildings, long-span concrete structures, road sub-bases and other applications. The present work deals with the fresh and hardened properties of LWFC. The fresh properties of LWFC are measured with the flow and fresh density tests. The hardened properties tests include compressive strength, flexural strength, flexural toughness, static modulus of elasticity, ultrasonic pulse velocity, water absorption and oven-dry density. In addition, the study focuses mainly on the effect of the fibres added to LWFC mixes. Two types of fibre have been used: glass fibres and polypropylene fibres, and the combination of glass fibres (GF) and polypropylene fibres (PPF) to obtain hybrid fibres (GF+PPF).This study also focuses on the effect of hybrid fibres on the flexural toughness of HPLWFC. Trial mixes have been used to choose the optimum mix. The definition for choosing the best mix depended on three parameters: oven-dry density, flowability and compressive strength. The volume fraction of glass and polypropylene fibres are 0.06, 0.2, 0.4 and 0.6 %, and 0.2, 0.6, 1 and 1.4 % respectively. The percentages of hybrid fibres “GF + PPF” are “0.2 + 0.6”, “0.4 + 0.6”, “0.2 + 1” and “0.4 + 1” %. The results show that the greatest increments in the compressive and flexural strengths of LWFC are 51 and 21 % respectively due to the use of 0.6 % glass fibres. On the other hand, LWFC reinforced with polypropylene fibres exhibits only a minor increase in compressive, splitting tensile and flexural strengths. The best percentage of hybrid fibres yielding the highest increment in LWFC is “0.4 % GF + 0.6 % PPF”. The results of flexural toughness tests indicate that the polypropylene fibres denote a higher efficiency in the flexural toughness than is the case with glass fibres. The flexural toughness results increase with the volume fraction of the fibres. The hybridization shows the best flexural toughness values due to the cooperative work of the glass and polypropylene fibres boost the performance of flexural toughness in pre-crack and post-crack zones. Therefore, the use of 0.4 %GF + 1 %PPF gives the best results in this regard.

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Materials, production, properties and application of aerated lightweight concrete

Journal International journal of materials science and engineering

Issue 2

Volume 2

Aerated lightweight concrete have many advantages when compared with conventional concrete such as advanced strength to weight ratio, lower coefficient of thermal expansion, and good sound insulation as a result of air voids within aerated concrete. This paper is attention to classified of aerated lightweight concrete into foamed concrete and autoclaved concrete. Also, it is exhibits the raw materials used in aerated concrete, types of agent, properties and applications. The production method is classified for each foamed and autoclaved concrete. The literature review of aerated lightweight properties is focuses on the porosity, permeability, compressive strength and splitting strength

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Materials, properties and application review of Lightweight concrete

Journal Technical Review of the Faculty of Engineering University of Zulia

Issue 2

Volume 37

The lightweight concrete has many advantages as compared to conventional concrete. It has significant applications on the structure, the featuring lightly gives several functions in of thermal and acoustic insulation and reduce the weight of the structure, which leads to reduced structural elements and steel reinforcement, thus lower the cost of the construction. This paper presents a review of the classification of lightweight concrete, where the lightweight concrete classified into two types according to production methods and utilization purpose. Also, it focuses on the materials used to obtain lightweight concrete. The production methods and properties for each type of lightweight concrete was reviewed. This paper also discusses the applications of lightweight concrete

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Effect of glass fibers on mechanical properties of structural lightweight foamed concrete(SLFC)

Journal University of Thi-Qar Journal for Engineering Sciences (UTJES)

publisher University of Thi-Qar

DOI https://doi.org/10.31663/utjes.v4i3.191

Issue 3

Volume 4

excellent features comprising more efficient strength-to-weight ratio in structural elements, high strength, reduced dead load, decrease foundation loads, energy saving, waste consuming, temperature conservation, and noise insulation. This work was prepared to investigate the effect of glass fibers on mechanical properties of structural lightweight foamed concrete (SLFC), Foam agent (organic material) was used to produce SLFC using different mix proportions to obtain structural compressive strength and high workability with slightest fresh density. Five mixes of SLFC with Superplasticizer is experimentally studied, also five mixes without Superplasticizer were tested. The compressive strength, flexural strength, ultrasonic pulse velocity (UPV), workability (flowability) and density were measured. Superplasticizer used in some mixes was 1% by weight of cement. Glass fibers were added in different volume fraction for SLFC and SLFC with superplasticizer. The volume fractions of the glass fibers used are: 0.06, 0.2, 0.4, and 0.6 % total volume. The results of SLFC mixes showed that the increase of glass fibers content can produce foam concrete with enhanced mechanical properties. For all percentages of glass fibers in the mixes it increases in compressive strength and flexural strength. But the increase in compressive strength was 51% for 0.6% glass fibers. Also the flexural strength increased 19.2% for 0.6% glass fibers. The compressive and flexural strength increased with the increase of glass fibers with acceptable range of workability.

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Effect of Glass Fibers on Tensile Strength of High Performance Lightweight Foamed Concrete (HPLWFC)

Journal International Journal of Enhanced Research in Science Technology & Engineering

Issue 12

Volume 2

High performance lightweight foamed concrete has the same mechanical properties of normal weight concrete (conventional concrete). The main applications are void filling, bridge abutments, bridge decks, marine structures, frame buildings, roads, sewer systems, roofing, walls, and floors. However, concrete is extensive brittleness and considered weak material in tension. Glass fibers are used as additive to the lightweight foamed concrete to increase the energy absorption capacity. The work was prepared to investigate the effect of glass fibers on tensile properties of lightweight foamed concrete with different volume fraction of glass fibers (0.06, 0.2, 0.4 and 0.6%) by the testing fresh density, dry density, flowability, compressive strength, direct tensile strength and splitting tensile strength. The results showed that a reduction in flowability was obtained with increased glass fibers content. Besides, the fresh and dry densities increased with the addition of glass fibers. Also, significant enhancements in compressive strength, direct tensile strength and splitting tensile strength were got by glass fibers inclusion. Thus, the increase of compressive strength, direct tensile strength and splitting tensile strength were up to the 56.6%, 50% and 46%, respectively, due to 0.6% glass fibers

High performance lightweight concrete reinforced with glass fibers

Journal AL-Mansour Journal

Issue 1

Volume 20

This paper demonstrates the effect of glass fibers on mechanical properties of high performance lightweight concrete which are: compressive strength, flexural strength, workability (flow), and density. Foam agent was used to produce lightweight concrete using different mix proportion to obtain good workability and compressive strength with least fresh density. Superplasticizer used in some mixes about 1% by weight of cement. Glass fibers were added in different volume fraction 0.06, 0.2, 0.4, and 0.6% for foam concrete and foam concrete with superplasticizer. The results of foamed concrete mixes indicate that the increase of glass fibers content can produce high performance lightweight concrete and improve the mechanical properties of such concrete. The compressive and flexural strength increased with the increase of glass fibers with acceptable range of workability, addition 0.6% of glass fibers increase 33.7% and 16.1% of compressive and flexural strength respectively but the flow reduced about 38% compare without glass fibers.

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