scholarly journals Measurement of Soil Tensile Strength and Factors Affecting its Measurements

2007 ◽  
Vol 47 (5) ◽  
pp. 911-918 ◽  
Author(s):  
Surendra bahadur Tamrakar ◽  
Toshiyuki Mitachi ◽  
Yasuo Toyosawa
Keyword(s):  
Tensile Strength ◽  
Factors Affecting ◽  
Soil Tensile Strength

Optimization of Post Weld Aging on Duplex Stainless Steel UNS31803 Grade with 23 Factorial Designs

2013 ◽  
Vol 717 ◽  
pp. 62-66
Author(s):  
Prachya Peasura ◽  
Nansa Arng Santirat
Keyword(s):  
Tensile Strength ◽  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Aging Time ◽  
Aging Temperature ◽  
Solution Temperature ◽  
P Value ◽  
Corrosion Properties ◽  
Factors Affecting ◽  
Time Interaction

Duplex stainless steel are good combination of economy, weldability and toughness and are often selected where both strength and corrosion properties are crucial. The research was study the effect of post weld aging parameter on mechanical properties. The specimen was duplex stainless steel UNS31803 grade sheet of 10 mm thickness. This experimental study aims at 23factorial design optimizing various post weld aging parameters including solution temperature at 900 and 1,050 °C, post weld aging temperature at 650 and 850 °C and post weld aging time were set at 4 and 8 hour. The welded specimens were tested by hardness testing in heat affected zone and tensile strength testing. The result showed that both of solution temperature, post weld aging temperature and post weld aging time interaction on hardness and tensile strength at 95% confidential (P value < 0.05). Factors affecting the optimum were solution temperature 1050 °C, PWA temperature 850°C and PWA time 4 hr. at hardness optimum of 282.36 HV and tensile strength optimum of 109.37 kN. This research can bring information to the foundation in choosing the appropriate post weld aging parameters to duplex stainless steel welds.

Experimental Study on Factors Affecting the Bond-Slip Properties of Concrete Reinforced by Bamboo-Based Fiber Composites

2014 ◽  
Vol 584-586 ◽  
pp. 1558-1562
Author(s):  
Jian Zhou ◽  
Su Ma ◽  
He Tao Hou ◽  
Jing Jing Li ◽  
Hai Ning Liu ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Bond Length ◽  
Orthogonal Experiment ◽  
Influencing Factor ◽  
Fiber Composites ◽  
Bond Slip ◽  
Factors Affecting ◽  
Strength Grade ◽  
Mm Bond ◽  
Section Form

Bond-slip properties of concrete reinforced by bamboo-based fiber composites were investigated. The influences of strength grade of concrete, bond length, strength grade of bamboo-bar and section form were studied based on the L16(45) orthogonal experiment. The function law was uncovered to support the anchoring checking between concrete and bamboo-based fiber composites. The results show that: the tensile strength of bamboo-based fiber composites stables at 200Mpa with large inflation rate; section form of the composites is the key influencing factor, but should not be too large; bond length and strength grade of concrete are important factors; tensile strength of the composites is not significant factor. C35 concrete, 50 mm bond length, 200Mpa tensile strength of the composites and 10mm*10mm section form are the optimal combinations.

Investigating the correlation between soil tensile strength curve and soil water retention curve via modeling

2017 ◽  
Vol 167 ◽  
pp. 9-29 ◽  
Author(s):  
Golnaz Ebrahim-Zadeh ◽  
Hossein Bayat ◽  
Ali Akbar Safari Sinegani ◽  
Hamid Zare Abyaneh ◽  
Harry Vereecken
Keyword(s):  
Tensile Strength ◽  
Soil Water ◽  
Water Retention ◽  
Water Retention Curve ◽  
Soil Water Retention Curve ◽  
Soil Water Retention ◽  
Retention Curve ◽  
Strength Curve ◽  
Soil Tensile Strength

Study on Formula for Glass Fiber/Microcellular Unsaturated Polyester Composites Preparation

2011 ◽  
Vol 233-235 ◽  
pp. 2595-2599 ◽  
Author(s):  
Xue Ni Zhao ◽  
Bin Zhou ◽  
Wu Yong Wan ◽  
Shan Qi Zeng ◽  
Wei Ren
Keyword(s):  
Tensile Strength ◽  
Glass Fiber ◽  
Fiber Length ◽  
Unsaturated Polyester ◽  
Curing Agent ◽  
Average Cell Size ◽  
Average Cell ◽  
Factors Affecting ◽  
Styrene Content ◽  
Polyester Composites

Formula for glass fiber/microcellular unsaturated polyester composites (GF/MCUP) using supersaturated gas technology was studied by the way of orthogonal experiment. The results showed that these factors affecting average cell size from strongly to weakly were styrene content, accelerant content, glass fiber length, curing agent and glass fiber content, respectively. The factors affecting average cell density from strongly to weakly were accelerant content, styrene content, glass fiber content, curing agent content and glass fiber length, respectively. Curing agent content was the major factor affecting impact strength of GF/MCUP. The factors revealed no obvious difference in affecting tensile strength. Under the optimizing processing condition, the average cell size of GF/MCUP was about 8 μm and the cell density was 1.19×109 cells/cm3. The 153.70 and 255.84 % increase in impact strength were gained over that of GF/UP and UP, respectively. The corresponding 20.24 and 82.51% increase in tensile strength-to-weight ratio were gained over that of GF/UP and UP, respectively.

scholarly journals Strength Mechanism and Influence Factors for Cold Recycled Asphalt Mixture

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Tao Ma ◽  
Hao Wang ◽  
Yongli Zhao ◽  
Xiaoming Huang ◽  
Yuhui Pi
Keyword(s):  
Tensile Strength ◽  
Asphalt Mixture ◽  
Influence Factors ◽  
High Viscosity ◽  
Asphalt Mixtures ◽  
Key Factors ◽  
Recycled Asphalt ◽  
Factors Affecting ◽  
Surface Areas ◽  
Emulsified Asphalt

This study focused on the key factors affecting the tensile strength of cold recycled asphalt mixture with cement and emulsified asphalt. The specific surface areas and strength of RAP were analyzed. The interaction between the emulsified asphalt and cement was observed. Comprehensive laboratory testing was conducted to evaluate the influences of RAP, emulsified asphalt, and cement on the tensile strength of cold recycled asphalt mixture. It is found that although RAP is used as aggregates, its inner structure and strength are much different from real aggregates. The strength of RAP has decisive effect on the strength of cold recycled asphalt mixture. New aggregates and fine gradation design can help improve the bonding between RAP and binder. For emulsified asphalt, slow setting of asphalt can give sufficient time for cement to hydrate which is helpful for strength formation in the cold recycled asphalt mixture. The high viscosity of asphalt can improve the early strength of cold recycled asphalt mixture that is important for traffic opening in the field. Cement is an efficient additive to improve the strength of cold recycled asphalt mixtures by promoting demulsification of emulsified asphalt and producing cement hydrates. However, the cement content is limited by RAP.

scholarly journals Effect of discrete fibre reinforcement on soil tensile strength

2014 ◽  
Vol 6 (2) ◽  
pp. 133-137 ◽  
Author(s):  
Jian Li ◽  
Chaosheng Tang ◽  
Deying Wang ◽  
Xiangjun Pei ◽  
Bin Shi
Keyword(s):  
Tensile Strength ◽  
Fibre Reinforcement ◽  
Soil Tensile Strength

scholarly journals A Comprehensive Study on the Factors Affecting the Workability and Mechanical Properties of Ambient Cured Fly Ash and Slag Based Geopolymer Concrete

2021 ◽  
Vol 11 (18) ◽  
pp. 8722
Author(s):  
Rana Muhammad Waqas ◽  
Faheem Butt ◽  
Xulong Zhu ◽  
Tianshui Jiang ◽  
Rana Faisal Tufail
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Fly Ash ◽  
Geopolymer Concrete ◽  
Factors Affecting ◽  
Naoh Solution ◽  
New Material ◽  
Comprehensive Study ◽  
Slag Content

Geopolymer concrete (GPC), also known as an earth friendly concrete, has been under continuous study due to its environmental benefits and potential as a sustainable alternative to conventional concrete construction. However, there is still a lack of comprehensive studies focusing on the influence of all the design mix variables on the fresh and strength properties of GPC. GPC is still a relatively new material in terms of field application and has yet to secure international acceptance as a construction material. Therefore, it is important that comprehensive studies be carried out to collect more reliable information to expand this relatively new material technology to field and site applications. This research work aims to provide a comprehensive study on the factors affecting the fresh and hardened properties of ambient cured fly ash and slag based geopolymer concrete (FS-GPC). Industrial by-products, fly ash from thermal power plants, and ground granulated blast furnace slag from steel industries were utilized to produce ambient cured FS-GPC. A series of experiments were conducted to study the effect of various parameters, i.e., slag content (10%, 20%, 30%, and 50%), amount of alkaline activator solution (AAS) (35% and 40%), sodium silicate (SS) to sodium hydroxide (SH) ratio (SS/SH = 2.0, 2.5 and 3.0), sodium hydroxide concentration (10 M, 12 M, and 14 M) and addition of extra water on fresh and mechanical properties of FS-GPC. The workability of the fresh FS-GPC mixes was measured by the slump cone test. The mechanical properties of the mixes were evaluated by compressive strength, split tensile strength, flexure strength, and static modulus tests. The results revealed that workability of FS-GPC is greatly reduced by increasing slag content, molarity of NaOH solution, and SS/SH ratio. The compressive strength was improved with an increase in the molarity of NaOH solution and slag content and a decrease in AAS content from 40% to 35%. However, the influence of SS/SH ratio on mechanical properties of FS-GPC has a varying effect. The addition of extra water to enhance the workability of GPC matrix caused a decrease in the compressive strength. The validity of the equations suggested by previous studies to estimate the tensile and flexural strength and elastic modulus of FS-GPC mixes were also evaluated. Based on the test results of this study, empirical equations are proposed to predict the splitting tensile strength, flexural strength, and elastic modulus of ambient cured FS-GPC. The optimal mixtures of FS-GPC in terms of workability and mechanical properties were also proposed for the field applications.

Sign in / Sign up

Export Citation Format

Share Document