Experimental study on high temperature shear strength parameter of salt rock

A heat-resistant phosphate adhesive was developed for joining and repairing of C/C composites. The high-temperature bonding effect for both cured adhesive and 1300°C-calcined adhesive had been evaluated through testing high-temperature shear strength of corresponding joints. The results showed that the bonding strength of cured adhesive decreased from 7.9 MPa at RT to 0.9 MPa at 1300°C, while that of 1300°C-calcined adhesive could maintain about 4 MPa at temperature range from RT to 700°C and then decreased to 1.7 MPa at 1300°C. Besides, with the increasing thermal cycling times at 1300°C, the high-temperature bonding strength at this temperature could maintain at about 2.3 MPa.

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Microstructure and elevated-temperature shear strength of Zn–4Al–3Mg–xSn high-temperature lead-free solders

Microelectronics Reliability ◽

10.1016/j.microrel.2014.03.008 ◽

2014 ◽

Vol 54 (8) ◽

pp. 1592-1597 ◽

Cited By ~ 7

Author(s):

R. Mahmudi ◽

D. Farasheh

Keyword(s):

Shear Strength ◽

High Temperature ◽

Elevated Temperature ◽

Lead Free ◽

Temperature Shear ◽

Lead Free Solders

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Experimental Study of the Shear Strength of Cobalt-Rich Crusts

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.419.576 ◽

2013 ◽

Vol 419 ◽

pp. 576-580 ◽

Cited By ~ 2

Author(s):

Hong Yun Wu ◽

Zheng Chen

Keyword(s):

Experimental Study ◽

Shear Strength ◽

Internal Friction ◽

Empirical Formula ◽

Laboratory Testing ◽

Friction Angle ◽

Strength Test ◽

Strength Parameter ◽

Shearing Strength

The shear strength parameter of cobalt-rich crusts can be used to design cobalt-rich crusts mining head. The shearing test of cobalt-rich crusts sample was done with different angle shearing testing apparatus.Firstly, the cobalt-rich crusts sample with the size of 50mmx50mmx50mm cube was clamped in the variable angle plate.Secondly, the sample ware loaded till to be damaged. Lastly,the damaged load were recorded at the degree of 50, 60 and 70 to establish their shearing strength and normal stress empirical formula.According to the testing result, its cohesion and internal friction angle parameters are respectively 0.275MPa and 54.43 degree. Restricted by the number of samples and limited by laboratory testing,in-situ shearing strength test should be carried out to improve the proposed empirical formula.

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Statistical Analysis on Shear Strength Parameter from Index Properties of Fine-grained Soils

Journal of Engineering Research and Reports ◽

10.9734/jerr/2021/v20i417291 ◽

2021 ◽

pp. 15-28

Author(s):

Tariku Tafari Bakala ◽

Emer Tucay Quezon ◽

Mohammed Yasin

Keyword(s):

Shear Strength ◽

Statistical Analysis ◽

Linear Regression ◽

Statistical Models ◽

Undrained Shear Strength ◽

Strength Parameter ◽

Index Properties ◽

Fine Grained ◽

Shear Strength Parameter ◽

Undrained Shear

Shear strength is the essential engineering property of soil required to analyze and design foundations, retaining walls, bridges, embankment, and related infrastructure. The laboratory equipment and field instruments are not sufficient in developing countries to obtain soil engineering properties, especially strength properties. Thus, Geotechnical engineers usually endeavor to develop statistical models that best fit a particular area and soil type, especially for analysis and design purposes. In this research, a Statistical Analysis on the Shear Strength parameter from the Index Properties of Fine-Grained Soils was studied. For predicting the undrained shear strength parameter, single linear regression (SLR) and multiple linear regressions (MLR) analyses were developed. To develop the intended statistical models for a study, SAS JMP Pro 13, SPSS v22, and Microsoft Excel-2013 software were introduced. The results of a study indicated that undrained shear strength(Cu) was significantly correlated with liquid limit(LL), plastic limit(PL), bulk density (ρbulk), dry density(ρdry), natural moisture content(NMC), and plasticity index(PI). While it was not significantly correlated with a specific gravity (Gs) and liquidity index (LI) of study area soil. Finally, a strong Model of Cu with a coefficient of determination (R2 = 0.806), good significance level, and less Std. error was obtained from multiple linear regression (MLR) analysis. The developed model can figure undrained shear strength parameter and wide application in the construction industry to minimize the cost, effort, and time for laboratory tests of shear strength parameter of a study area.

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Alternatif Fondasi Tiang Pancang Pada Gedung Pengendalian Penduduk dan Keluarga Berencana (P2KB) Palu

REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development ◽

10.22487/renstra.v2i1.239 ◽

2021 ◽

pp. 69-78

Author(s):

R. Hidayat ◽

Irdhiani Irdhiani

Keyword(s):

Shear Strength ◽

Bearing Capacity ◽

Lateral Force ◽

Empirical Method ◽

Strength Parameter ◽

Single Pile ◽

Building Structures ◽

Foundation Design ◽

Safety Requirements ◽

Shear Strength Parameter

The foundation design of Pengendalian Penduduk dan Keluarga Berencana is located on Jl. R.A. Kartini No. 100, Palu City, Central Sulawesi. In field testing using 2-point of (CPT), the value of hard-ground support at 8 – 9 m below the surface and the loads of building structures of 2 (two) floor buildings that work on the foundations are quite large, this is a consideration in choosing the type of used foundation. The point of this design is to obtain the dimensions of the pile foundation and calculate the bearing capacity of the foundation permit and settlement that meet the safety requirements. The calculation for bearing capacity of the foundation is calculated using (CPT) data and soil shear strength parameter data (c and tetha). Single pile is calculation by using the Semi-Empirical method and using Brooms Method for calculating lateral force on the driven piles. The dimensions of the foundation are planned based on the load (Qv) acting on the entire foundation. Calculation of bearing capacity of a single pile with a penetration depth of 8,20 m and varying dimensions are used in the planning. Based on the calculation of the bearing capacity of a single pile using (CPT) data on the load that works on the foundation, was obtained 25 cm and 30 cm diameter of pile. while the calculation uses ground shear strength parameter data (c and tetha) obtained pile diameter of 30 cm and diameter of 35 cm. Based on the calculation of the bearing capacity of a single pile, the dimensions of the foundation and the settlement in permits has reached the safety requirements.

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