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Introduction To meet the needs of new construction of cities in China, a large number of building rubbish was made from the dismantled old buildings.
To reach the ideal shape of grains, the concrete was crushed twice by crushing machine.
The recycled coarse aggregate was sieved as three separate grades with grain size of 5~10mm, 10~20mm and 20~26.5mm, and was then blended with the mass ratio of 40%, 30% and 30% to be the continued grading fitting the standard specification [7].
Similar with the ordinary concrete, a reasonable sand ratio is valuable to fill the interspaces among the grains of coarse aggregate and bring the concrete into higher density.

With the removal of grains of abrasive, the contact of the electrolyte with the electrode is restored, and again precipitation occurs.
The adhesion of the coating to the substrate is relatively good, the coatings have a uniform thickness; when analyzing the coating using X-ray diffraction and electron microscopy, a smaller grain size was observed [5, 10].
For abrasive processing, an abrasive tool was used, containing in parts by weight: - polyvinyl chloride 70-100; - dibutyl phthalate 65; - calcium stearate 5; - silicon carbide green (with a grain size of 150 microns) 140.
Acknowledgments The study was financially supported by the Ministry of Education and Science of the Russian Federation within the framework of the Russian Federal Program for the development of Russian science and technology between 2014 and 2020, unique identifying number of the project RFMEFI57817X0256 (contract no. 14.578.21.0256).

Journal Title and Volume Number (to be inserted by the publisher) Figure 2 shows the evolution of DSC traces by aging for the sample diffusion treated for 259.2 ks.
Recently Khalil-Allafi et al. have shown that the grain boundaries act as the preferential nucleation sites for the Ti3Ni4 phase, leading to the inhomogeneous distribution of the precipitates for the intermediate aging duration.
After the diffusion treatment, the sample is composed of the B2 phase grains (Fig. 3(a)).
The distribution of the precipitates is uniform through out the grain interior.

Because the films surface contains a great number of amide groups, a series of post-functionalization reactions can be achieved on the substrate surface.
As Fig. 5 Picture (a) shows, the grafting time is 5s, and the grafted grains were few and their distribution uniformity was not good.
Picture (b) shows the quantity of grains increased slowly.
Picture (c) shows the sample with the irradiation time being 30s, on this sample a lot white deposit appeared; moreover, not only the amount of grains increased, but their distribution inclined to be uniform.

It was found that the grain size, evaluated according to ASTM E 112 standard [6], varied along the radial direction of the bar.
Close to the surface (Fig. 1b), the average grain size was equal to 67 mm, while in the center (Fig. 1c) it was equal to 35 mm.
Fig. 4 shows the results of the statistical analysis in the hypothesis of log-normal distribution of the number of cycles to failure Nf and constant scatter of the experimental data with respect to the heat energy level Q.
[6] ASTM E112 - 12 Standard Test Methods for Determining Average Grain Size

The crystal boundary in the stacking shape organization[3] of Ni-P-Re alloy plating is less than which in the bulk collection organization of the Ni-P alloy brush plating, and the bulk crystal grains are close.
It shows that adding the rare earth Re3+ can restrain the growth of the crystal grains in brush plating.
It’s because that the rare earth Re3+ has special electronic structure, it adsorbs on the activity growth point of matrix preferentially, Making the deposition in the surface of the matrix form block, and restraining the growth of the crystal grains, and increasing the amorphous structure, reducing the defects, such as the crystal boundaries, the dislocations, and the crystal absence etc, and improving the bonding strength of the brush plating.
The results are mainly the morphology of the brush plating is the stacking shape amorphous structure, which reduces the defects number of the pinhole, the crystal boundaries, the dislocations, and the crystal absence in the brush plating, and reduces the intergranular corrosion.

Subsequently developed technology of online oil detection use online wear monitoring instruments to measure physicochemical indexes such as permittivity, changes of the concentration of abrasive grain or grain size to estimate the wearing of equipments.
In this system, the on-line collection of oil abrasive grain parameters, is completed by the embedded sensors installed directly in oil circuit.
Conclusion Compared with the conventional remote monitoring system, the remote oil monitoring system based on GPRS has many advantages, such as: unlimited use of occasions, without laying a large number of cables, available for wild use, and always online, real time, easy maintenance, low maintenance costs, data transmission intermittent or continuous.

These numbers are an average of 5 samples and the calculated standard deviation was 0,01 and 0,02 for the samples made from elemental and pre-alloyed, respectively.
A better view of this coarse microstructure can be seen in Figure 3 where grains with the same size as the cross section of the toroid could be found.
On the other hand the Fe49Co2V showed a much smaller grain size than the Fe-50Co-alloy Figure 2-B.
Figure 3 - Microstructure of Fe-50Co after sintering showing the grain size with the same diameter of the toroid cross section (magnification of 25x).

These characteristics show the critical edge distance inducing edge chipping is about 0.75mm for Al2O3; the interior material performances of ceramics become more close-grained, the larger load inducing edge chipping is needed for the same displacement of indenter.
These indicate that the layer become dense but not close-grained. (3) Elastic stage.
These indicate that the layer is more close-grained. (4) Fracture stage.
During the transition and elastic stages, AE signals become intensive, which indicates that a number of new micro-cracks are induced; the diamond indenter has traversed the surface metamorphic layer and began to contact the compact layer.

At constant pressure, increase in power can lead to increase in mean momentum of grain bombing target, thereby increasing the number of activated ejected fragments and the intensity of impinging on the substrate surface.
On the other hand, enhanced pressure increases the frequency rather than intensity of the grain bombing, thereby decreasing the mean grain energy at a given power level.