modified reactive powder concrete with artificial aggregates

specializing in the production of large, medium and small concrete mixers, concrete mixing stations, stabilized soil mixing stations and other equipment. It is a heavy industry enterprise integrating R & production and sales.

Modified Reactive Powder Concrete with Artificial Aggregates

Jul 01, 2000  Title: Modified Reactive Powder Concrete with Artificial Aggregates Author(s): S. Monosi, G. Pignoloni, S. Collepardi, R. Troli, and M. Collepardi Publication: Symposium Paper Volume: 195 Issue: Appears on pages(s): 447-460 Keywords: aggregate; concrete (fiber-reinforced); silica fume; superplasticizer Date: 7/1/2000 Abstract: Reactive Powder Concretes (RPC) - in form of

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Study on Properties of Modified Reactive Powder Concrete

Powder Concrete (RPC) with Modified Reactive Powder Concrete (MRPC) are compared by taking different proportions of aggregates by varying w/c ratios. The strengths are tested by using at 28 days by ordinary curing and accelerated curing of 48hrs at 75̊C. Additional of silica fume as an artificial pozzolanic admixture

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Study on Properties of Modified Reactive Powder Concrete ...

Oct 28, 2014  In this study compressive and flexural strengths of Reactive Powder Concrete (RPC) with Modified Reactive Powder Concrete (MRPC) are compared by taking different proportions of aggregates by varying w/c ratios. The strengths are tested by using at 28 days by ordinary curing and accelerated curing of 48hrs at 75 C.

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Mechanical Properties of Modified Reactive Powder Concrete

Sep 01, 1997  Original Reactive Powder Concrete (RPC) - in form of a superplasticized cement mixture with silica fume, steel fibers and ground fine quartz (150-400 pm) - was studied in comparison with a modified RPC where a graded natural aggregate (max size 8 mm) was used to replace the fine sand and/or part of the cementitious binder.

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REACTIVE AGGREGATE IN CONCRETE STRUCTURES

the potentially reactive materials: chemical method (ASTM C289) , petrographic exam (ASTM C295), and the mortar bar method (ASTM C277). Historically, when these tests have provided an indication that the aggregate in question is reactive, the responsible authorities have frequently used one or more of the following remedial measures: 2

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Artificial aggregates could be a potential way to realize ...

Mar 01, 2021  The organic protective layer of artificial aggregates protects spores from the harsh environment of the concrete. • The modified ceramsite particles have lower impact on mechanical performance. ... nutrients have been embedded in the modified ceramsite in the form of powder. Then the new formed particles were encapsulated by organic ...

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Reactive Powder Concrete - Composition and Advantages ...

Reactive powder concrete (RPC) is the ultra-high strength concrete prepared by replacing the ordinary aggregate of normal concrete with quartz powder, silica fume, steel fibers etc. RPC not only has high strength but also has high ductility. Its compressive strength ranges from 200 Mpa to 800 Mpa.

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Mechanical properties of modified reactive powder concrete

Materials on Performance of Reactive Powder Concrete”, International Conference on High-Performance Concrete, and Performance and Quality of Concrete Structures, Florianopolis, 1996,

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Mechanical Behavior of Modified Reactive Powder Concrete ...

DOI: 10.3311/PPCI.17298 Corpus ID: 233386193. Mechanical Behavior of Modified Reactive Powder Concrete with Waste Materials Powder Replacement @article{Radhi2021MechanicalBO, title={Mechanical Behavior of Modified Reactive Powder Concrete with Waste Materials Powder Replacement}, author={M. S. Radhi and Z. M. R. A. Rasoul and Aymen J. Alsaad}, journal={Periodica

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Effect of Aggregate Packing on Strength of Reactive Powder ...

This research investigates the effects of aggregate packing degree on the strength of Reactive Powder Concrete (RPC) mixtures on the basis of the Toufar model. To optimize the packing degree of sand for strength development of RPC, various sand blends with the combination of different fraction size were used. In addition, 10 different blends that showed best packing degree were chosen to ...

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Reactive Powder Concrete - Composition and Advantages ...

Reactive powder concrete (RPC) is the ultra-high strength concrete prepared by replacing the ordinary aggregate of normal concrete with quartz powder, silica fume, steel fibers etc. RPC not only has high strength but also has high ductility. Its compressive strength ranges from 200 Mpa to 800 Mpa.

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Prediction of Mechanical Properties of Reactive Powder ...

Reactive powder concrete, Fire flame, Artificial neural network, Mechanical properties, Statistical analysis. INTRODUCTION . Reactive powder concrete (RPC) is one of the latest advances in concrete technology. It addresses the shortcomings of many concretes today (Therresa et al., 2008). RPC has attracted great research attention for its

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Recent advances in artificial aggregate production ...

Apr 01, 2021  1. Introduction. In the pursuit of sustainable development in construction industry, there is a pressing need to find alternative aggregates for the production of concrete since approximately three-quarters volume of concrete is occupied by aggregates (Behera et al., 2014), and especially when the extraction of natural aggregates has also been restrained in some countries or cities to preserve ...

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Buildings Special Issue : Advanced Concrete Materials in ...

This research studied the influence of three types of open (short-straight, long-straight, semicircular) and three different shapes of closed steel fibers (triangular, rectangular, circular) with different fiber contents by volume (0, 0.5%, 1%, 1.5%, and 2%) on the working and mechanical performance of reactive powder concrete (RPC).

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Assessment of Mechanical Properties of Normal Strength ...

Two types of concrete are used; normal strength concrete and modified reactive powder concrete. These types of concrete is exposed to different elevated temperatures (60, 100 and 150) CO then subjected to repeated load. Table 1: Specimens Dimensions. Group No. Cube Specimens (mm3) Cylinder Specimens for Splitting Tensile

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Prof. Dr: Khairy Hassan Abdelkareem Professor of Concrete ...

37. Prediction of Mechanical Properties of Reactive Powder Concrete by Using Artificial Neural Network and Regression Technique after the Exposure to Fire Flame. Jordan Journal of Civil Engineering 38. Studying of Some Mechanical Properties of Reactive powder Concrete Using Local Materials. Journal of Engineering 39.

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Mechanical properties and microstructure of reactive ...

Jan 21, 2015  To provide fundamental data on developing an economical and practical Reactive Powder Concrete (RPC), a modified RPC was made in this study. This modified RPC significantly reduced the content of cement and silica fume compared to the conventional RPC mixture by the combination of ternary pozzolanic materials (silica fume, blast furnace slag, and fly ash). A series of

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Civil Engineering Seminar Topics 2013 - All for B-Tech

Dec 23, 2013  Seminar Topics for Civil Engineering – 2013 Supported by various Journals. Transatlantic Tunnel Case Study. Reactive Powder Concrete. Bamboo As Construction Material. Self Healing Material. Structural Behaviour Of High Strength Concrete Columns Exposed To Fire. Stainless Steel As Reinforcement.

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Internal Curing of Concrete NIST

Nov 15, 2019  van Breugel, K., and de Vries, H., Mixture Optimization of Low Water/Cement Ratio, High-Strength Concretes in View of Reduction of Autogenous Shrinkage, Proceedings International Symposium on High-Performance and Reactive Powder Concretes, Eds. P.C. Aitcin and Y. Delagrave, University of Sherbrooke, Quebec, Canada, 365-382, 1998.

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Curriculum Vitae - journals.nawroz.krd

2- Nadiyah Kherallah Abd, “Structural Behavior of Reactive Powder Concrete Domes”, 2016. 3- Hayam Yousuf T. AL-Hamdani, “Shear Strength of Lightweight Modified Reactive Powder Reinforced Concrete Beams”, 2018. 4- Sahar Jabbar M. AL-Serai, “Structural Behavior of Fiber Reinforced Geopolymer Concrete Wall Panels”, 2019.

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Reactive powder concrete reinforced with nano SiO2-coated ...

Sep 01, 2017  Nano SiO 2-coated TiO 2 is used to reinforce reactive powder concrete (RPC).. Inclusion of nano SiO 2-coated TiO 2 into RPC leads to increase of 87%/6.69 MPa in flexural strength.. Nano SiO 2-coated TiO 2 has pozzolanic effect and decreases the amount of CH.. Coating of nano SiO 2 at surface of TiO 2 is beneficial for dispersion of nano fillers in matrix.

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Mechanical properties and microstructure of reactive ...

Jan 21, 2015  To provide fundamental data on developing an economical and practical Reactive Powder Concrete (RPC), a modified RPC was made in this study. This modified RPC significantly reduced the content of cement and silica fume compared to the conventional RPC mixture by the combination of ternary pozzolanic materials (silica fume, blast furnace slag, and fly ash). A series of

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A review on ultra high performance concrete: Part I. Raw ...

Dec 30, 2015  In order to reduce the cost of UHPC, recycled glass cullet, natural sands, and artificial aggregates were used as replacements for refined quartz sand , . The use ... Modified reactive powder concrete with artificial aggregates. ACI Spec. Pub. (2000), p. 195. Google Scholar.

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The effect of high temperature on reactive powder concrete ...

Nov 15, 2014  The properties of reactive powder concrete with different plastic fiber ratios were investigated at different temperatures. Samples with the dimensions 7 × 7 × 7 cm were produced using CEM I 52.5 R cement, quartz sand, quartz powder, silica fume, steel wire, a superplasticizer, polypropylene fibers, and water.To achieve high strength the concrete specimens were subjected to

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Mechanical properties of graphene-reinforced reactive ...

Nov 26, 2019  Reactive powder concrete (RPC), as a new type of ultra-high-performance concrete, had been gradually applied in bridges, high-rise buildings, nuclear power and hydraulic engineering due to its advantages of high strength, high durability and excellent volume stability [1, 2].However, the concrete used in engineering, even if the water-to-cement ratio was low, always had a large number

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Prof. Dr: Khairy Hassan Abdelkareem Professor of Concrete ...

37. Prediction of Mechanical Properties of Reactive Powder Concrete by Using Artificial Neural Network and Regression Technique after the Exposure to Fire Flame. Jordan Journal of Civil Engineering 38. Studying of Some Mechanical Properties of Reactive powder Concrete Using Local Materials. Journal of Engineering 39.

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A review on ultra high performance concrete: Part II ...

Oct 15, 2015  After 1000 freeze–thaw cycles, the relative dynamic modulus of regular concrete (RC), high strength mortar (HSM) and reactive powder concrete (RPC) reduced by 61%, 22% and 10% respectively; their compressive strengths reduced by 57%, 16% and 6% respectively, as shown in Fig. 13; the bond strength between steel and the matrixes decreased by 35 ...

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Full Description of Types of Concrete Additions ...

It is a very fine greyish powder with a specific surface about fifty times that of normal Portland cement, the particles having a diameter of about 1 micron, and is a highly reactive pozzolan. The addition of condensed silica fume to concrete and mortar has a significant effect on the properties of the plastic mix, as well as on the hardened ...

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Civil Engineering Seminar Topics 2013 - All for B-Tech

Dec 23, 2013  Seminar Topics for Civil Engineering – 2013 Supported by various Journals. Transatlantic Tunnel Case Study. Reactive Powder Concrete. Bamboo As Construction Material. Self Healing Material. Structural Behaviour Of High Strength Concrete Columns Exposed To Fire. Stainless Steel As Reinforcement.

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Silicones for Paints Coatings - Shin-Etsu Silicone

P 22-29 P 30-31 5 Product Map Structure (3 types): Resin, rubber resin coated rubber Features:Available in a variety of particle sizes to meet a range of requirements. Silicone Powders Features: Surface Modifiers designed to use as leveling agents, defoamers, slip agents, and in

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Curriculum Vitae - journals.nawroz.krd

2- Nadiyah Kherallah Abd, “Structural Behavior of Reactive Powder Concrete Domes”, 2016. 3- Hayam Yousuf T. AL-Hamdani, “Shear Strength of Lightweight Modified Reactive Powder Reinforced Concrete Beams”, 2018. 4- Sahar Jabbar M. AL-Serai, “Structural Behavior of Fiber Reinforced Geopolymer Concrete Wall Panels”, 2019.

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Mechanical Behavior of Modified Reactive Powder Concrete ...

Feb 19, 2021  View 0 peer reviews of Mechanical Behavior of Modified Reactive Powder Concrete with Waste Materials Powder Replacement on Publons Download Web of Science™ My Research Assistant : Bring the power of the Web of Science to your mobile device, wherever inspiration strikes.

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Yi Zhou Zhuang Scientific.Net

The mix proportions of reactive powder concrete (RPC) with different packing degree and calcium-silicon ratio of cementitious materials were designed and a strength test was carried out. The study results reveal that the flexural strength and compressive strength of RPC are related to the packing degree and calcium-silicon ratio of cementitious ...

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Internal Curing of Concrete NIST

Nov 15, 2019  van Breugel, K., and de Vries, H., Mixture Optimization of Low Water/Cement Ratio, High-Strength Concretes in View of Reduction of Autogenous Shrinkage, Proceedings International Symposium on High-Performance and Reactive Powder Concretes, Eds. P.C. Aitcin and Y. Delagrave, University of Sherbrooke, Quebec, Canada, 365-382, 1998.

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