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Online since: May 2011
Authors: Ke Xu Hu, Yan Bo Zhang, Kai Xu
Experimental study on Mechanical Properties of New Self-compacting Concrete for Strengthening Engineering
Kexu HU1, a, Yanbo ZHANG2,b and Kai XU3,c
1,2Research Institute of Structural Engineering and Disaster Reduction.
results of grouting material at different ages Age Test Value(MPa) Average Value (MPa) Flexural Strength 1d 6.8 6.6 6.5 6.6 3d 7.5 7.6 7.5 7.5 7d 7.9 8.0 7.6 7.8 28d 11.3 10.9 11.4 11.2 Compressive Strength 1d 45.8 45.1 43.6 44.4 40.6 40.5 43.3 3d 67.6 66.2 68.4 65.7 66.8 67.4 67.0 7d 71.5 74.4 75.2 76.7 74.8 73.6 74.4 28d 82.0 76.3 81.6 79.0 81.2 81.0 80.2 a) Bonding to concrete b)Bonding to steel plate c)Bonding between concrete Fig. 3 Test of shear strength of interfacial Table 5 Tensile bond strength test results of grouting material bonded to concrete or steel plate Bonded to Age Test Value(MPa) Average Value(MPa) Concrete 7d 2.10 1.90 2.13 2.04 1.97 1.99 1.88 1.84 2.03 2.07 1.94 28d 3.00 3.52* 2.42 3.07* 2.58 2.70 2.93 2.56 1.63* 1.85* 1.73* Steel plate 7d 0.39* 0.27 0.24 0.30 0.29 0.28 0.28 0.30 0.29 0.27 0.27 28d 0.41 0.47* 0.24* 0.24* 0.45* 0.38 0.41 0.36 0.36 0.44 0.30 * More than 20% above average for the invalid data
results of grouting material at different ages Age Test Value(MPa) Average Value (MPa) Flexural Strength 1d 6.8 6.6 6.5 6.6 3d 7.5 7.6 7.5 7.5 7d 7.9 8.0 7.6 7.8 28d 11.3 10.9 11.4 11.2 Compressive Strength 1d 45.8 45.1 43.6 44.4 40.6 40.5 43.3 3d 67.6 66.2 68.4 65.7 66.8 67.4 67.0 7d 71.5 74.4 75.2 76.7 74.8 73.6 74.4 28d 82.0 76.3 81.6 79.0 81.2 81.0 80.2 a) Bonding to concrete b)Bonding to steel plate c)Bonding between concrete Fig. 3 Test of shear strength of interfacial Table 5 Tensile bond strength test results of grouting material bonded to concrete or steel plate Bonded to Age Test Value(MPa) Average Value(MPa) Concrete 7d 2.10 1.90 2.13 2.04 1.97 1.99 1.88 1.84 2.03 2.07 1.94 28d 3.00 3.52* 2.42 3.07* 2.58 2.70 2.93 2.56 1.63* 1.85* 1.73* Steel plate 7d 0.39* 0.27 0.24 0.30 0.29 0.28 0.28 0.30 0.29 0.27 0.27 28d 0.41 0.47* 0.24* 0.24* 0.45* 0.38 0.41 0.36 0.36 0.44 0.30 * More than 20% above average for the invalid data
Online since: March 2007
Authors: S.S. Tzeng, Wei Min Wu, J.S. Hsu
It is
also noted that the data scatter more for the DLC films on mp-alumina.
They pointed out that when the surface bias voltage increases a graphitization of the samples appears (the cluster size increases) and a reduction of the hydrogen content is recorded.
They pointed out that when the surface bias voltage increases a graphitization of the samples appears (the cluster size increases) and a reduction of the hydrogen content is recorded.
Online since: August 2005
Authors: L. Fano, V. Fano, W.Y. Ma, X.G. Wang
In Table 2, Ra data related to the one-step light-activated
samples showed values of some tens of nanometers (43-48 nm), that are larger than macromolecule
bumps (few nanometers).
In literature, it has been reported that in VLC composites the reduction of the polymerization contraction stress can be obtained by two step light-activation [16] or soft start approach [17] produced by low intensity light.
In literature, it has been reported that in VLC composites the reduction of the polymerization contraction stress can be obtained by two step light-activation [16] or soft start approach [17] produced by low intensity light.
Processing and Characterization of Pure Nickel Sheets by Constrained Groove Pressing (CGP) Technique
Online since: December 2010
Authors: T. Raghu, S.S. Satheesh Kumar
The load-stroke data obtained from the tensile tests are converted to engineering stress-engineering strain and true stress-true strain curves following the standard procedures.
During subsequent passes of CGP, the reduction in grain sizes are marginal (Table 1) and at the end of third pass the average grain size estimated is observed to be 12 µm.
During subsequent passes of CGP, the reduction in grain sizes are marginal (Table 1) and at the end of third pass the average grain size estimated is observed to be 12 µm.
Online since: January 2014
Authors: Jing Liu, Yu Bo Wang, Cheng Bing He, Ping Zhu
In response to the call of the national of energy conservation and emission reduction, power plants need for efficient use of energy, reduce energy consumption.
Data processing, make full use of the information intermediary transition, meanwhile, have a good objectivity and reduce human subjective factors, so that the boiler efficiency assessment results are more objective and reliable.
Data processing, make full use of the information intermediary transition, meanwhile, have a good objectivity and reduce human subjective factors, so that the boiler efficiency assessment results are more objective and reliable.
Online since: June 2011
Authors: Natalia Sobczak, Rafal Nowak, Joanna Wojewoda-Budka, Jerzy Morgiel
This large crystal size was attributed to the extraordinary high volumetric mismatch between the initial ZnO and Al2O3 oxides (having molar volumes of 14.28 and 25.62 cm3/mol, respectively [13]) because 3 moles of ZnO transforms into only 1 mole of Al2O3, following to the reaction:
2Al + 3ZnO = Al2O3 + 3Zn (1)
The breaking of freshly formed Al2O3 interfacial layer and the formation of discontinuities within the layer, as it was explained in Ref. [13], was caused by the different strains due to ~40% reduction in volume.
These results were compared with the data obtained for Al/ZnOPC couples, in which the RPR was twice as thin and consisted of smaller a-Al2O3 crystals.
These results were compared with the data obtained for Al/ZnOPC couples, in which the RPR was twice as thin and consisted of smaller a-Al2O3 crystals.
Online since: February 2011
Authors: A.A. Faieza, S.M. Sapuan, N. Ismail, M.S. Ibrahim, S. Hisham
Fig.3: Tensile Young Modulus
It is not like the pervious study by Facea et al, [23] mention that the tensile modulus data for all the composites was show the linearly increase with an increase of fibre loading.
A similar result was reported in a previous study, in which the addition of 20 wt.% wood flour to PP gave rise to a 9.5% strength reduction compared with pure polypropylene [26].
A similar result was reported in a previous study, in which the addition of 20 wt.% wood flour to PP gave rise to a 9.5% strength reduction compared with pure polypropylene [26].
Online since: November 2012
Authors: Wei Tai Liang, Jian Gao, Jin Pei Yang
With the reduction of the fight time y, the threat degree z constantly increases until to 1.
Table.3 Combination Results of Threat Degrees T1 T2 T3 T4 T5 target factor θ1 (0.1944, 0.5556, 1.0833) (0.2778, 0.6667, 1.2222) (0.3889, 0.8333, 1.4444) (0.4167, 0.8889, 1.5278) (0.4444, 0.9722, 1.6667) assets factor θ1 (0.4441, 0.7032, 0.9623) (0.5000, 0.7500, 1.0000) (0.5637, 0.8455, 1.1273) (0.5632, 0.7930, 1.0228) (0.6667, 0.9459, 1.2251) relation factor θ1 (0.4204, 0.6307, 0.8409) (1.0000, 1.0000, 1.0000) (0.8706, 0.9353, 1.0000) (0.5743, 0.7872, 1.0000) (0.9330, 0.9665, 1.0000) threat degree θ1 (0.1342, 0.3969, 0.8601) (0.3889, 0.7083, 1.1111) (0.4146, 0.7851, 1.2859) (0.2814, 0.6620, 1.2753) (0.5184, 0.9269, 1.4459) centroid method θ1 0.4637 0.7361 0.8285 0.7395 0.9637 Conclusions The threat assessment and sorting is a kind of reasoning and decision action and the decision attributes sometimes include different kinds of data.
Table.3 Combination Results of Threat Degrees T1 T2 T3 T4 T5 target factor θ1 (0.1944, 0.5556, 1.0833) (0.2778, 0.6667, 1.2222) (0.3889, 0.8333, 1.4444) (0.4167, 0.8889, 1.5278) (0.4444, 0.9722, 1.6667) assets factor θ1 (0.4441, 0.7032, 0.9623) (0.5000, 0.7500, 1.0000) (0.5637, 0.8455, 1.1273) (0.5632, 0.7930, 1.0228) (0.6667, 0.9459, 1.2251) relation factor θ1 (0.4204, 0.6307, 0.8409) (1.0000, 1.0000, 1.0000) (0.8706, 0.9353, 1.0000) (0.5743, 0.7872, 1.0000) (0.9330, 0.9665, 1.0000) threat degree θ1 (0.1342, 0.3969, 0.8601) (0.3889, 0.7083, 1.1111) (0.4146, 0.7851, 1.2859) (0.2814, 0.6620, 1.2753) (0.5184, 0.9269, 1.4459) centroid method θ1 0.4637 0.7361 0.8285 0.7395 0.9637 Conclusions The threat assessment and sorting is a kind of reasoning and decision action and the decision attributes sometimes include different kinds of data.
Online since: September 2013
Authors: Gang Ding, Da Lei, Wei Yao
Thus, condition monitoring is essential in terms of flight safety and also for reduction of the preventive maintenance cost.
In order to reduce the influence from environment, a basis value was subtracted from the origin data and a new time series DEGT was generated for prediction.
In order to reduce the influence from environment, a basis value was subtracted from the origin data and a new time series DEGT was generated for prediction.
Online since: June 2023
Authors: Raja Nor Izawati Raja Othman, Noor Amieza Mohamad, Nur Fazlin Abdul Jamilr
Finally, the measurement data are shown in a number of graphical and tabular representations.
Related to the lag of the produced electric field in the composites in reaction to the reversing external E-field, the permittivity decreases with increasing frequency, leading to a frequency-dependent dielectric response due to a reduction in electronic oscillation at high frequencies [5].
Related to the lag of the produced electric field in the composites in reaction to the reversing external E-field, the permittivity decreases with increasing frequency, leading to a frequency-dependent dielectric response due to a reduction in electronic oscillation at high frequencies [5].