Optimised Mix Design for Normal Strength and High Performance Concrete Using Particle Packing Method

Gopinath, Smitha; Murthy, A. Ramachandra; Ramya, Dharna; Iyer, Nagesh R.

doi:10.2478/v.10169-011-0026-0

Cited by 11 publications

(3 citation statements)

References 3 publications

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“…For very fine particles, EMMA has an enhanced feature within the model that can be utilized. Note that optimization of mix designs with the help of the EMMA software has successfully been carried out in the past by many researchers [39][40][41][42][43][44][45].…”

Section: Particle Packing By Emmamentioning

confidence: 99%

Influence of Optimum Particle Packing on the Macro and Micro Properties of Sustainable Concrete

Abushama,

Tamimi,

Tabsh

et al. 2023

Sustainability

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In this research, the possibility of making eco-friendly concrete from available materials in the local United Arab Emirates (UAE) market was investigated. Supplementary cementitious materials, such as ground granulated blast-furnace slag (GGBS) and silica fume (SF), were utilized for decreasing the cement quantity, enhancing the particle size distribution and improving packing. In sum, 130 concrete specimens—cubes, cylinders, and prisms—from 10 different concrete mixes were tested to determine the enhancement levels in the fresh and hard properties of new concrete. The results showed the improved particle packing of the concrete, especially within the region of sizes 100–10,000 microns, produced by the Elkem Materials Mix Analyser (EMMA), closely matching the Andreassen theoretical model. The green concrete incorporating SF and GGBS possessed air content in the range 1.0–1.4% and compressive strength that is on average 11% higher than the well-packed concrete that did not contain SF or GGBS. Compared to the ACI 318 code’s predictions, the experimental findings of the optimally packed concrete’s moduli of rupture and elasticity were under-estimated by 55–69% and 0.8–8.8%, respectively. The rapid chloride permeability test (RCPT) showed results as low as 392 coulombs for mixes with supplementary cementitious materials, indicating very low chloride permeability. Microstructural analysis using a scanning electron microscope (SEM) demonstrated that concrete with supplementary materials has fewer voids, more homogeneous integration of ingredients, and an abundance of C-S-H products that supported the RCPT findings and tests of mechanical properties. The study demonstrated a significant decrease in carbon dioxide (CO2) emissions of concrete utilizing GGBS and SF and the financial feasibility of eco-friendly concrete in the UAE.

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Section: Particle Packing By Emmamentioning

confidence: 99%

Influence of Optimum Particle Packing on the Macro and Micro Properties of Sustainable Concrete

Abushama,

Tamimi,

Tabsh

et al. 2023

Sustainability

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“…Agar didapatkan gradasi ukuran butir partikel berupa gradasi menerus yang ideal dengan packing density optimum, metode Modified Andreasen Packing Model (MAPM), yang merupakan suatu studi semi-empiris, memberikan formulasi sebagaimana dalam persamaan berikut (Gopinath et al, 2011):…”

Section: Metode Modified Andreasen Packing Modelunclassified

Penerapan Metode Modified Andreasen Packing Model Pada Rancangan Campuran Beton Normal

Alkhaly

2018

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Perancangan campuran beton (mix design) merupakan upaya untuk menentukan besarnya jumlah semen, agregat halus, agregat kasar, dan air yang akan digunakan dalam 1 m3 adukan guna memperoleh kuat tekan rencana dan kemudahan kerja yang ditetapkan. Aspek keuntungan ekonomis campuran beton sangat ditentukan dari jumlah kandungan semen. Campuran beton dengan packing density yang baik akan menghasilkan jumlah kandungan semen yang lebih sedikit. Penelitian ini bertujuan untuk mengoptimalkan komposisi campuran beton dengan menggunakan metode Andreasen-Andersen packing model berbantuan perangkat lunak EMMA. Hasil penelitian menunjukkan bahwa penggunaan metode Modified Andreasen Packing Model menghasilkan campuran beton berkandungan semen lebih rendah, dan kuat tekan beton pada umur 28 hari lebih tinggi dibandingkan dengan metode SNI 03-2834-2000. Pada mutu beton rencana 15 MPa – 25 MPa, penggunaan semen lebih rendah 6% - 9% dan kuat tekannya meningkat sebesar 6% - 7%. Selanjutnya pada mutu beton rencana 30 MPa – 40 MPa, penggunaan semen lebih rendah 14% - 27% dan kuat tekannya meningkat sebesar 5% - 13%.

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“…Bitumen 35/50 (5.2%) was the binder. Optimal grading curve has been done by means of authorial computer programme using particle packing method [19].…”

Section: Introductionmentioning

confidence: 99%

Influence of F-T Synthetic Wax on Asphalt Concrete Permanent Deformation

Iwański

Mazurek

2013

Archives of Civil Engineering

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The paper presents the results of the study of the effect of a Fischer-Tropsch (F-T) synthetic wax on the resistance to permanent deformation of the AC 11S asphalt concrete. The synthetic wax was dosed at 1.5%, 2.5% and 3.5% by weight of bitumen 35/50. The compaction temperatures were 115ºC, 130ºC and 145ºC. The criteria adopted for measuring the resistance to permanent deformation included the following parameters: stiffness modulus at 2, 10 and 20ºC, permanent deformation (RTS), fatigue life determined using the indirect tensile fatigue test (ITFT) and resistance to rutting (WTSAIR, PRDAIR). The test results confi rmed the positive infl uence of F-T synthetic wax on enhancing the permanent deformation resistance of asphalt concrete placed at lower compaction temperatures compared to that of standard asphalt concrete compacted at 140ºC.

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Optimised Mix Design for Normal Strength and High Performance Concrete Using Particle Packing Method

Cited by 11 publications

References 3 publications

Influence of Optimum Particle Packing on the Macro and Micro Properties of Sustainable Concrete

Influence of Optimum Particle Packing on the Macro and Micro Properties of Sustainable Concrete

Penerapan Metode Modified Andreasen Packing Model Pada Rancangan Campuran Beton Normal

Influence of F-T Synthetic Wax on Asphalt Concrete Permanent Deformation

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