Study on Engineering Property of Water-Based Epoxy Resin Mortar

2013 ◽  
Vol 645 ◽  
pp. 15-18
Author(s):  
Du Ming Gong ◽  
Qi Cheng Liu ◽  
Ling Chen ◽  
Zi Jia Xiong
Keyword(s):  
Tensile Strength ◽  
Shear Strength ◽  
Epoxy Resin ◽  
Engineering Application ◽  
Experimental Results ◽  
Engineering Property ◽  
Water Based ◽  
Influence Of Water

The engineering property of water-based epoxy resin mortar was investigated in this paper, the fluidity and pin performance are analyzed. Influence of water-based epoxy resin ratio on engineering property was discussed. As the results showed, the fluidity decreases with the increase of resin dosage(water-based epoxy resin on the percentage of total materials), and the best resin dosage is 9.7% around. The shear strength expression was nonlinear fitted, and the integration of shear strength and tensile strength was completed based on the experimental results to guide the engineering application.

scholarly journals An Experimental Study on a Composite Bonding Structure for Steel Bridge Deck Pavements

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Xiaoguang Zheng ◽  
Qi Ren ◽  
Huan Xiong ◽  
Xiaoming Song
Keyword(s):  
Tensile Strength ◽  
Shear Strength ◽  
Epoxy Resin ◽  
Bonding Strength ◽  
Bridge Deck ◽  
Steel Bridge ◽  
Shear Tests ◽  
Bonding Structure ◽  
Asphalt Overlay ◽  
Strength Tests

As one of the major contributors to the early failures of steel bridge deck pavements, the bonding between steel and asphalt overlay has long been a troublesome issue. In this paper, a novel composite bonding structure was introduced consisting of epoxy resin micaceous iron oxide (EMIO) primer, solvent-free epoxy resin waterproof layer, and ethylene-vinyl acetate (EVA) hot melt pellets. A series of strength tests were performed to study its mechanical properties, including pull-off strength tests, dumbbell tensile tests, lap shear tests, direct tension tests, and 45°-inclined shear tests. The results suggested that the bonding structure exhibited fair bonding strength, tensile strength, and shear strength. Anisotropic behaviour was also observed at high temperatures. For epoxy resin waterproof layer, the loss of bonding strength, tensile strength, and shear strength at 60°C was 70%, 35%, and 39%, respectively. Subsequent pavement performance-oriented tests included five-point bending tests and accelerated wheel tracking tests. The impacts of bonding on fatigue resistance and rutting propagation were studied. It was found that the proposed bonding structure could provide a durable and well-bonded interface and was thus beneficial to prolong the fatigue lives of asphalt overlay. The choice of bonding materials was found irrelevant to the ultimate rutting depth of pavements. But the bonding combination of epoxy resin waterproof and EVA pellets could delay the early-stage rutting propagation.

Study on Influence of Water Based Capillary Inorganic Water Proofer on Concrete Performance

2011 ◽  
Vol 99-100 ◽  
pp. 1000-1004
Author(s):  
Yi Jin Li ◽  
Yun Li Gong
Keyword(s):  
Wear Resistance ◽  
Corrosion Resistance ◽  
Concrete Strength ◽  
Engineering Application ◽  
Application Research ◽  
Carbonation Resistance ◽  
Water Based ◽  
Influence Of Water ◽  
Practical Engineering

The development of water based capillary inorganic water proofer is discussed in this paper. By practical engineering application research, the influences of water based capillary inorganic water proofer on concrete strength, impermeability, carbonation resistance, wear resistance and corrosion resistance are summarized. Finally, the prospect of application of water based Capillary inorganic water proofer is pointed out.

Influence of Alkali Treatment on the Interfacial Bond Strength of Industrial Hemp Fibre Reinforced Epoxy Composites: Effect of Variation from the Ideal Stoicheometric Ratio of Epoxy Resin to Curing Agent

2007 ◽  
Vol 29-30 ◽  
pp. 319-322 ◽  
Author(s):  
M.S. Islam ◽  
K.L. Pickering
Keyword(s):  
Tensile Strength ◽  
Shear Strength ◽  
Epoxy Resin ◽  
Young’S Modulus ◽  
Interfacial Shear Strength ◽  
Alkali Treatment ◽  
Interfacial Shear ◽  
Curing Agent ◽  
Hemp Fibre ◽  
Industrial Hemp

Industrial hemp fibre was treated with alkali and the influence of this treatment on interfacial shear strength (assessed using the single fibre pull-out test) and composite strength with an epoxy resin, over a range of epoxy resin to curing agent ratios, was investigated. Scanning electron microscopy was conducted to assess the fracture behaviour of the composite tensile test specimens. It was found that alkali treatment increased the interfacial shear strength and composite tensile strength, Young’s modulus and elongation at break. The highest tensile strength was obtained with an epoxy resin to curing agent ratio of 1:1 while the best Young’s modulus was achieved with a resin to curing agent ratio of 1:1.2.

The Combined Effect of Mercerisation, Silane Treatment and Acid Hydrolysis on the Mechanical Properties of Sisal Fibre/Epoxy Resin Composites

MRS Advances ◽  
2020 ◽  
Vol 5 (23-24) ◽  
pp. 1225-1233
Author(s):  
Wilson Webo ◽  
Maina Maringa ◽  
Leonard Masu
Keyword(s):  
Tensile Strength ◽  
Shear Strength ◽  
Flexural Strength ◽  
Epoxy Resin ◽  
Compression Strength ◽  
Silane Treatment ◽  
Reinforced Composites ◽  
Sisal Fibre ◽  
Strength And Stiffness ◽  
Fibre Reinforced Composites

ABSTRACTThe effect of the combined chemical treatment of sisal fibres through the subsequent processes of mercerisation (alkali-treatment), then silane treatment and eventually acid hydrolysis, on sisal fibre were investigated. The effect of the treated fibres on the tensile strength and stiffness, flexural strength and stiffness, compression strength and shear strength of their composites with epoxy resin were also studied. Scanning electron microscopy studies of the surfaces of the treated and untreated fibres showed that the chemical treatment processes enhanced the removal of surface extractives and therefore increased the roughness of the surfaces of the fibres in the range of 20 % - 70 %. This avails an increased reinforcement surface area for interlocking with matrix and is, therefore, expected to enhance adhesion of the two. The treated fibre reinforced composites were observed to have higher values of tensile strength and stiffness, flexural strength and stiffness, compression strength and shear strength than the un-treated fibre reinforced composites. These higher values were attributed to better interfacial bonding due to better mechanical interlocking between the treated fibres and epoxy resin arising from the increased roughness of the treated fibres.

Experimental Study on the Mechanical Properties of Metal Oxides Filled PA1010 Composites

2007 ◽  
Vol 353-358 ◽  
pp. 1346-1349
Author(s):  
Chuan Hui Huang ◽  
Shi Bo Wang ◽  
Li Guo Liu
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Shear Strength ◽  
Metal Oxides ◽  
Experimental Results ◽  
Al2o3 Particles

This paper focuses on the effect of metal oxides on the mechanical properties of PA1010 composites, such as the tensile strength, compressive strength, shear strength and hardness. The experimental results show that the tensile strength of PA1010 composites filled with CuO and Al2O3 particles slightly decreases with the oxide contents increasing. However, the tensile strength of PA1010 composites filled with Fe3O4 particles increases, which has the average increment in tensile strength of 23.7% than the pure PA1010 materials. The results indicate that the compressive strength can be increased by adding CuO, Al2O3 and Fe3O4 particles into PA1010 polymer. The results exhibit that Fe3O4 particles have significant effects to increase the shear strength of PA1010 composites. However, Al2O3 particles filling reduce the shear strength of the composites.

Effect of Surface Roughness on the Shear and Tensile Strength of Hardwood Adhesive Joints: A Linear Elastic Model

2015 ◽  
Vol 1088 ◽  
pp. 750-757
Author(s):  
Andrea Cressoni de Conti ◽  
Cláudio de Conti
Keyword(s):  
Tensile Strength ◽  
Shear Strength ◽  
Joint Strength ◽  
Bond Line ◽  
Experimental Results ◽  
Elastic Model ◽  
Feed Speed ◽  
Machined Surface ◽  
Linear Elastic ◽  
Linear Elastic Model

This study analyzed the bond line strength of Eucalyptus sp. specimens submitted to shear and perpendicular to grain tensile forces, depending on the wood quality machined surface. The woods plans were glued with two different polyvinyl acetate adhesives. The bonding surfaces were milling with three different feed speeds; 6.0, 11.0 and 15.0 m/min, corresponding to the feed per tooth of the cutting tool; 0.86, 1.57 and 2.14 mm, respectively. The specimen types corresponded to the standards according to ABNT NBR 7190/1997. The cutting plane considered only the geometry of milling due to the bond line joint strength. To explain the experimental results, was proposed a linear elastic model to machined wood and bond line. For the two adhesives used, the experimental results suggest that the greatest perpendicular to grain tensile strength and shear strength were obtained to bond surface machined with the intermediate feed speed namely 11 m/min, for others two feed speeds and in the shear strength case, was not observed a distinction between them, in the perpendicular to grain tensile strength, the feed speed 6.0 m/min presented a higher strength than the machined surface with 15.0 m/min. The model reproduces the behavior of the experimentally results obtained for the two tests, and so it can be readily applied as a tool for evaluate the machining feed speed and the bond line joint strength.

Effect of CTBN on Properties of Oxide Graphene/Epoxy Resin Composites

2011 ◽  
Vol 412 ◽  
pp. 393-396
Author(s):  
Chun Fa Ouyang ◽  
Qun Gao ◽  
Yu Tao Shi ◽  
Wen Tao Li
Keyword(s):  
Tensile Strength ◽  
Shear Strength ◽  
Epoxy Resin ◽  
Ester Group ◽  
Resin Composites ◽  
Elongation At Break ◽  
Acrylonitrile Copolymer ◽  
Infra Red ◽  
Epoxy Resin Composites

The effect of liquid carboxyl terminated butadiene acrylonitrile copolymer (CTBN) on the properties of oxide graphene (OG) /epoxy resin (EP) composite has been studied. The results show that oscillations process can greatly increase the tensile strength, shear strength and hardness of the composites, for the compatibility between the EP and the OG can be greatly improved after oscillations. Infra-red analysis shows that CTBN reacts with EP to form ester group. The tensile strength of the EP decrease, and the elongation at break increase, as more and more CTBN added. The tensile strength of the OG/EP composite is 14.37 MPa, while that of CTBN/OG/EP (15/0.001/100) composite is 4.84 MPa.

Preparation and Properties of Oxidized Graphene (OG)/Epoxy Resin (EP) Composite via Ultrasonic Oscillation

2011 ◽  
Vol 412 ◽  
pp. 397-401
Author(s):  
Qun Gao ◽  
Chun Fa Ouyang ◽  
Xiao Qian Shan ◽  
Yu Tao Shi ◽  
Ajun Wan ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Shear Strength ◽  
Fracture Surface ◽  
Epoxy Resin ◽  
Dielectric Constants ◽  
Cross Linking ◽  
Ultrasonic Oscillation ◽  
Oscillation Process

The influence of ultrasonic oscillation process on the performance of oxidized graphene (OG) /epoxy resin (EP) composite is studied. The results show that the oscillation process can greatly improve the tensile strength, shear strength and hardness of EP, as well as it’s morphology, for the compatibility of EP with OG is greatly improved after oscillation. OG can improve the dielectric constants of EP to some extent, while increase the tensile strength at low content, decrease with adding more OG. The tensile strength of EP is 19.32MPa and the dielectric constants 1.73 with 3/1000 content of OG. The morphology of the EP shows that the fracture surface of the composite is layer shape while the surface of EP is smooth, indicating OG change the structure of EP after cross-linking reaction.

scholarly journals Bio-Based Adhesives for Wooden Boatbuilding

2020 ◽  
Vol 9 (1) ◽  
pp. 28
Author(s):  
Pasqualino Corigliano ◽  
Vincenzo Crupi ◽  
Serena Bertagna ◽  
Alberto Marinò
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Shear Strength ◽  
Shear Modulus ◽  
Epoxy Resin ◽  
Experimental Tests ◽  
Testing Procedure ◽  
Lap Joint ◽  
Shear Tests ◽  
Better Than

The aim of the present investigation was to assess the behaviour of strip-planked parts by comparing wooden specimens glued using two different bio-based adhesives with wooden specimens glued using a conventional epoxy resin generally used in boatbuilding. Experimental tests in accordance with UNI EN standards were performed in order to evaluate mechanical properties such as tensile strength, shear strength, elastic modulus and shear modulus. In addition, compression shear tests were performed in order to assess the shear modulus of the adhesives. The obtained results demonstrate that the mechanical properties of the investigated bio-based adhesives are comparable to, and sometimes better than, the conventional epoxy resin. Moreover, the experimental results give useful information for the design of wooden boats when the strip-planking process is used. Furthermore, a new procedure to assess the shear modulus of elasticity and shear strength, using the application of compression loadings, was proposed. The results were compared to standard lap-joint tests and showed even lower dispersion. Consequently, the testing procedure proposed by the authors is valid to assess shear properties under compression loading, and it can be applied in most laboratories since it involves the use of common testing devices.

CENTRI-CAST GRAY IRON 50

Alloy Digest ◽  
1981 ◽  
Vol 30 (8) ◽  
Keyword(s):  
Tensile Strength ◽  
Shear Strength ◽  
Physical Properties ◽  
Machine Tools ◽  
Heat Treating ◽  
Gray Iron ◽  
Centrifugally Cast ◽  
Wide Range ◽  
Nominal Tensile Strength ◽  
Cast Gray Iron

Abstract CENTRI-CAST GRAY IRON 50 is a centrifugally cast gray iron with a nominal tensile strength of 50,000 psi. It is cast in the form of tubing which has a wide range of uses in applications where size and shape are of paramount importance and freedom from pattern cost is an important consideration. Among its many applications are farm machinery, seals, bushings, machine tools and general machinery uses. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on casting, heat treating, machining, and surface treatment. Filing Code: CI-51. Producer or source: Federal Bronze Products Inc..

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