scholarly journals Flexural Strength Test For Concrete Beam With Mild Steel and Reinforcing Iron

2019 ◽  
Vol 676 ◽  
pp. 012030
Author(s):  
M Z Umar ◽  
A Faslih
Keyword(s):  
Flexural Strength ◽  
Mild Steel ◽  
Concrete Beam ◽  
Strength Test

scholarly journals Tensile and Flexural Strength of Commercially Pure Titanium Submitted to Laser and Tungsten Inert Gas Welds

2013 ◽  
Vol 24 (6) ◽  
pp. 630-634 ◽  
Author(s):  
Juliana Abdallah Atoui ◽  
Daniela Nair Borges Felipucci ◽  
Valeria Oliveira Pagnano ◽  
Iara Augusta Orsi ◽  
Mauro Antonio de Arruda Nobilo ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Flexural Strength ◽  
Laser Welding ◽  
Pure Titanium ◽  
Strength Test ◽  
Inert Gas ◽  
Commercially Pure Titanium ◽  
Middle Point ◽  
Strength Data ◽  
Commercially Pure

This study evaluated the tensile and flexural strength of tungsten inert gas (TIG) welds in specimens made of commercially pure titanium (CP Ti) compared with laser welds. Sixty cylindrical specimens (2 mm diameter x 55 mm thick) were randomly assigned to 3 groups for each test (n=10): no welding (control), TIG welding (10 V, 36 A, 8 s) and Nd:YAG laser welding (380 V, 8 ms). The specimens were radiographed and subjected to tensile and flexural strength tests at a crosshead speed of 1.0 mm/min using a load cell of 500 kgf applied on the welded interface or at the middle point of the non-welded specimens. Tensile strength data were analyzed by ANOVA and Tukey's test, and flexural strength data by the Kruskal-Wallis test (α=0.05). Non-welded specimens presented significantly higher tensile strength (control=605.84±19.83) (p=0.015) and flexural strength (control=1908.75) (p=0.000) than TIG- and laser-welded ones. There were no significant differences (p>0.05) between the welding types for neither the tensile strength test (TIG=514.90±37.76; laser=515.85±62.07) nor the flexural strength test (TIG=1559.66; laser=1621.64). As far as tensile and flexural strengths are concerned, TIG was similar to laser and could be suitable to replace laser welding in implant-supported rehabilitations.

scholarly journals Mechanical Properties and Microstructural Features using Stone Dust as a Partial Replacement of Sand

2019 ◽  
Vol 8 (6) ◽  
pp. 5232-5237
Keyword(s):  
Mechanical Properties ◽  
Economic Growth ◽  
Sustainable Development ◽  
Compressive Strength ◽  
Flexural Strength ◽  
Natural Resources ◽  
Strength Test ◽  
Partial Replacement ◽  
Test Results ◽  
Stone Dust

Today’s world is always leads to development in technology as well as the economic growth though sometime these will affect the environment badly. That’s why world environmental commission coined the termed called sustainable development where development takes place without hampering the others’ needs. Concrete industry is rapidly growing industry in India which consumes lots of natural resources during the production of concrete. Here Stone dust is used as a sustainable material in place of sand partially. M25 grade of concrete has been chosen for the experiments. Different mechanical properties of concrete like compressive strength, Split tensile, flexural strength etc. and Microstructural features like SEM, EDX have been included in this study. Compressive Strength and flexural strength test results shown the increase in the strength. Sulphate Resistance Properties have been tested by curing the cubes in the MgSO4 solution and increase in weight has been observed. Similarities are found in the SEM pictures

scholarly journals Pengaruh Penambahan Serat Kawat Bendrat Terhadap Kuat Lentur Beton Geopolimer

2022 ◽  
Vol 10 (1) ◽  
pp. 69-76
Author(s):  
Indrayani Indrayani ◽  
Lina Flaviana Tilik ◽  
Djaka Suhirkam ◽  
Suhadi Suhadi ◽  
Muhammad Prawira Wardana ◽  
...  
Keyword(s):  
Fly Ash ◽  
Flexural Strength ◽  
Concrete Beams ◽  
Tensile Load ◽  
Strength Test ◽  
Coal Waste ◽  
Geopolymer Concrete ◽  
Normal Concrete ◽  
Additional Material ◽  
Flexible Beams

Currently, innovation continues to be developed to replace cement with other materials so that the use of cement as a building material can be reduced. Utilization of coal waste (fly ash) is an alternative to subtitude cement. From previous studies, fly ash mixed with alkaline materials in the form of NaOH and Na2SiO3 in a ratio of 1:5 can produce geopolymer concrete. This geopolymer concrete research was continued by adding bendrat wire fibers into the geopolymer concrete mixture. The method used in testing the aggregate, testing the compressive strength of normal concrete K225, testing the flexural strength of normal concrete and geopolymer concrete refers to SNI. Another additional material that is mixed is bendrat wire fiber. The research was carried out in the form of making flexible beams of 10 cm x 10 cm x 50 cm with fiber variations of 0%, 0.5%, and 1,0% at the age of 14 and 28 days. The results of the flexural strength test of the BN beam at the age of 28 days can withstand loads than BG. The average flexural strength obtained with variations of BN, BN+SB 0.5% and BN+SB 1.0% respectively were 2.796 MPa, 3.113 MPa, and 3.879 MPa. The results of testing the average flexural strength of geopolymer concrete beams at 28 days, obtained variations of BG, BG+SB 0.5%, and BG+SB 1.0% respectively were 0 MPa, 0.055 MPa and 0.104 MPa. In addition, geopolymer concrete cannot be used as a beam and the addition of bendrat wire fiber to geopolymer concrete cannot withstand the tensile load on the concrete.

scholarly journals Flexural strength comparison of self-synthesised porcelain with the sintering temperature of 1150 degree Celsius and 1200 degree Celsius

2018 ◽  
Vol 30 (3) ◽  
pp. 194
Author(s):  
Joseph Gunawan ◽  
Dede Taufik ◽  
Veni Takarini ◽  
Zulia Hasratiningsih
Keyword(s):  
Flexural Strength ◽  
Bending Strength ◽  
Sintering Temperature ◽  
Testing Machine ◽  
Strength Test ◽  
Maturity Level ◽  
Natural Sand ◽  
Sintering Time ◽  
Universal Testing ◽  
Strength Formula

Introduction: Porcelain must have sufficient flexural strength to withstand mastication forces. The flexural strength of porcelain can be influenced by the maturity level of porcelain related to the temperature and sintering time. The purpose of this study was to compare the flexural strength of Indonesian natural sand self-synthesised porcelain with different sintering temperatures. Methods: Self-synthesised porcelain powder, with the composition of 65% Pangaribuan felspar, 25% Belitung silica, 5% Sukabumi kaolin, and 5% potassium salt, were condensed into 10 samples with the size of 7cm x 2cm x 0.4cm. A total of 5 samples were each burned at the temperature of 1150°C and 1200°C. Flexural strength test was performed using the Universal Testing Machine (Netzsch™) with the lowest load of 7.5 kg, and the data obtained was calculated using the bending strength formula. Result: The average flexural strength of self-synthesised porcelain at the sintering temperature of 1150°C was 26.678 MPa, while at the temperature of 1200°C was 39.038 MPa. Conclusion: This study concluded that Indonesian natural sand self-synthesised porcelain had a lower flexural strength at the sintering temperature of 1150°C than at the temperature of 1200°C.Keywords: Flexural strength, self-synthesised porcelain, sintering temperature.

Assessment of post-heat behavior of cement mortar incorporating silica fume and granulated blast-furnace slag

2020 ◽  
Vol 11 (2) ◽  
pp. 221-246
Author(s):  
Ghasem Pachideh ◽  
Majid Gholhaki
Keyword(s):  
Tensile Strength ◽  
Flexural Strength ◽  
Blast Furnace Slag ◽  
Strength Test ◽  
Content Type ◽  
Granulated Blast Furnace Slag ◽  
Cement Mortars ◽  
Strength Tests ◽  
Pozzolanic Materials ◽  
Furnace Slag

Purpose With respect to the studies conducted so far and lack of researches on the post-heat behavior of cement mortars containing pozzolanic materials, the purpose of this paper is to investigate the post-heat mechanical characteristics (i.e. compressive, tensile and flexural strength) of cement mortars containing granulated blast-furnace slag (GBFS) and silica fume (SF). In doing so, selected temperatures include 25, 100, 250, 500, 700 and 9000c. Last, the X-ray diffraction test was conducted to study the microstructure of mixtures and subsequently, the results were presented as power-one mathematical relations. Design/methodology/approach Totally, 378 specimens were built to conduct flexural, compressive and tensile strength tests. Accordingly, these specimens include cubic and prismatic specimens with dimensions of 5 × 5 × 5 cm and 16 × 4 × 4 cm, respectively, to conduct compressive and flexural strength tests together with briquette specimen used for tensile strength test in which cement was replaced by 7, 14 and 21 per cent of SF and GBFS. To study the effect of temperature, the specimens were heated. In this respect, they were heated with a rate of 5°C/min and exposed to temperatures of 25 (ordinary temperature), 100, 250, 500, 700 and 900°C. Findings On the basis of the results, the most profound effect of using GBFS and SF, respectively, takes place in low (up to 250°C) and high (500°C and greater degrees) temperatures. Quantitatively, the compressive, tensile and flexural strengths were enhanced by 73 and 180 per cent, 45 and 100 per cent, 106 and 112 per cent, respectively, in low and high temperatures. In addition, as the temperature elevates, the particles of specimens containing SF and GBFS shrink less in size compared to the reference specimen. Originality/value The specimens were cured according to ASTMC192 after 28 days placement in the water basin. First, in compliance with what has been specified by the mix design, the mortar, including pozzolanic materials and superplasticizer, was prepared and then, the sampling procedure was conducted on cubic specimens with dimension of 5 × 5 × 5 mm for compressive strength test, prismatic specimens with dimensions of 16 × 4 × 4 mm for flexural strength test and last, briquette specimens were provided to conduct tensile strength tests (for each temperature and every test, three specimens were built).

FLEXURAL STRENGTH OF EXPANSIVE CONCRETE BEAM WITH VARIOUS CURING CONDITIONS

2007 ◽  
Vol 63 (3) ◽  
pp. 459-467
Author(s):  
Kunihiro ISHIDA ◽  
Isamu YOSHITAKE ◽  
Hironobu HAMAOKA ◽  
Sumio HAMADA
Keyword(s):  
Flexural Strength ◽  
Concrete Beam ◽  
Curing Conditions ◽  
Expansive Concrete

Microstructure and Performance of Fused Silica-Based Ceramic Core Reinforced by Mullite Fiber

2016 ◽  
Vol 848 ◽  
pp. 228-232
Author(s):  
Xin Li ◽  
Jian Sheng Yao ◽  
Xiao Guang Liu ◽  
Hong Na Fan ◽  
Shu Xin Niu
Keyword(s):  
Flexural Strength ◽  
Creep Test ◽  
Casting Process ◽  
Fused Silica ◽  
Strength Test ◽  
Ceramic Core ◽  
The Core ◽  
Mullite Fiber ◽  
And Performance ◽  
Microstructure And Performance

Fused silica-based ceramics are often used as sacrificial cores in investment castings to produce hollow, precise, and complex-shaped blades. In this work, the content of mullite fiber and its effects on mechanical and dimension behavior of silica-based ceramic cores were investigated. In order to simulate the single crystal blades casting process, the sintered samples were also heated up to 1540°C and kept for 0.5 h. Flexural strength test at 1540°Cwas carried out for the samples. The shrinkage, creep behavior and erode behavior were characterized. The results showed that in the premise of maintaining strength of materials, mullite fiber could decrease significantly the shrinkage. Many gains appeared on the surface of fiber after creep test of the core samples at 1540°C.

scholarly journals PERBANDINGAN KAPASITAS KUAT LENTUR PADA BETON BALOK TULANGAN BAMBU PILIN DENGAN KULIT DAN TANPA KULIT

2019 ◽  
Vol 2 (2) ◽  
pp. 299
Author(s):  
Angga Dwi Cahya ◽  
Yosef Cahyo Setianto Poernomo ◽  
Ahmad Ridwan
Keyword(s):  
Tensile Strength ◽  
Flexural Strength ◽  
Strength Test ◽  
Test Results ◽  
High Tensile Strength ◽  
Long Time ◽  
Constituent Elements

We all know that steel elements cannot be renewed and their constituent elements take a long time to form. So there is a need for other alternatives which have steellike properties. One alternative is bamboo, bamboo is one material that can be used as a substitute for steel, because bamboo has a high tensile strength close to the strength of steel. In this study an attempt was made to compare the use of reinforcement with bamboo on the outside with the skin and the inside without skin to determine the flexural strength. The flexural strength test results on variations of skin obtained the value of Max P: average: 3400 kg with an average deflection of 9.25 mm while in variations without the skin P Max produced an average of 2400 kg with deflection value of 1.92 mm. Kita ketahui bersama bahawa unsur baja tidak bisa diperbaharui serta unsur penyusunnya yang membutuhkan waktu yang lama untuk terbentuk. Sehingga  perlu adanya alternatif  lain yang dimana memiliki sifat menyerupai baja. Salah satu alternatifnya adalah bambu, bambu merupakan salah satu bahan dapat digunakan sebagai pengganti baja, karena  bambu mempunyai kuat tarik yang tinggi yang mendekati kekuatan baja. Pada penelitian ini dicoba untuk membandingkan penggunaan tulangan dengan bambu bagian luar dengan kulit dan bagian dalam tanpa kulit guna mengetahui kekuatan lentur. Hasil pengujian kuat  lentur pada variasi kulit didapatkan nilai P Maks: rata-rata:3400 kg dengan  lendutan  rata-rata 9.25 mm sedangkan pada variasi tanpa kulit P Maks rata-rata yang dihasilkan 2400 kg dengan nilai lendutan 1.92 mm.

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