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Meanwhile we suggest the construction units using Ordinary 32.5 Portland cement of Weifang Cement Workshop, and Ⅱgradation, medium sand, whose sediment percentage 0.39%, air dry, SiO2 >90%, apparent density ρoa=2.469g/cm3 , stacking density ＝1460 Kg/m3 , modulus of fineness 2.9, lime rock reduced stone of continuous grain composition of Weifang, have a grade 5mm-20mm, sediment percentage 0.39%, air dry, native rock strength 55.6±8.9Mpa, apparent density ρoa=2.669g/cm3 , stacking density ＝1560 Kg/m3.
Each batch of concrete volume in about 1000m3 or so, each inspection batch standard maintenance specimen number of about ten group, at the same time around each batch do 5 groups of early rapid maintenance presumption strength, to control the concrete specimens with early strength of concrete quality evaluation.
Conclusions In the application of concrete strength presumption of adopting hot-water method to presumpt 28d standard maintenance intensity early in the process of test, through a large number of test data of a construction site, the commonly concrete strength relationship has good correlation and also can meet the requirements of precision presumption.

Stainless steels are used to replace copper tubes in most power, but a large number of cooper tubes are still applied to air conditioning refrigeration industry.
Table 1 Chemical composition and mechanical properties of copper TP2 and the standard values Items Cu P Rm A50mm Grain size Detection value 99.95 % 0.02 % 255 MPa 45 % 0.015mm Standard values ≥ 99.9 % 0.015-0.04 % ≥205MPa ≥40 % ≤0.040mm The appearance of the opened copper tube corrosion are shown in Fig. 1 and Fig. 2.
Fig. 1 shows the brass surface having a large number of green corrosion products.

The first number in the legends shows deformation temperature, the second part is the strain rate, and the last number is ln(Z) for the respective deformation condition.
Finally, it should be noted that Z is not the sole governing parameter in DRX kinetics since other parameters, e.g. initial grain size of the material, are also effective.

By the end of 2009, the population of Ankang city has reached 26.606 million; the total area is 23,529 square kilometers, among which, cultivated land area reaches 199,000 hectares, 1,658 million hectares belong to forest ,and coverage rate is achieving 56.5 percent, the grain sowing area is 278,000 hectares, 884 ,600 tons of food production, and the net income of each farmer is 3313 yuan.
Poverty population is about 400, 000, of which the characteristics are large number, wide range, and deep level.
The number of poor households who moved away which have reached 1859 involving 7524 people; over 139 small watershed with 4621 square kilometers has been improved.

The common quality defects of construction projects are great in number and are mainly embodied in such three aspects as “crack, infiltration and leakage” and common quality defects of concrete include inadequate strength, honeycombs, pitting surface, holes, exposed reinforcing bar, lacking edge and angle and temperature cracking, etc.
For example, the grain diameter of gravels selected for grouting and the control of clay content of plaster sand have a significant influence on project quality and therefore, the correct selection of raw materials is one of the main measures to control the quality of concrete.
For example: 55 concrete columns in certain project have inadequate strength and when the problem is detected, steel hoops are adopted for reinforcement to cause the total number of floors to be reduced by two and the loss reaches RMB 1.2 million.

It is affected not only by the internal factors, such as the physical characteristics of the soil, grain composition, the density of filling, the permeability performance and the initial stress, but also by the external factors, such as earthquake magnitude, epicentral distance, vibration duration.
, （1） where is the initial shear stress; is an empirical parameter reflecting the pore pressure decreasing with , and its value is generally between 1.1～1.3; is the increment of equivalent number of cycles; is the liquefied number of cycles.

It was reported that for CCM-FGMs, the arrangement of the platelets perpendicular to the radial direction of the ring is a good indication for the effect of centrifugal force, and this effect varies depending on the value of G number. [8,9].
Rotating axis Experimental Procedure A set of experiments was performed using CCM to produce Al/Al3Zr FGMs under 30, 60 and 120 G, where G number is the ratio of centrifugal force to that of gravity.
From Fig.2 (a), the Al3Zr particles in Al/Al3Zr FGMs fabricated under G=30 were gradually distributed from the outer to the interior of the intermetallics reach area, then very fine particles were found located on the grain boundaries in the inner regions.

Soil dynamics parameters Layer number soil Soil upper bound (m) Soil layer lower (m) Proportion(KN/m3) Elastic modulus (MPa) Poisson's ratio 1 Miscellaneous fill in the soil 0 -4 17.5 98 0.444 2 Loose gravel -4 -7 20 584 0.399 3 A little secret pebble -7 -9 21 691 0.396 4 Loose gravel -9 -12 20 584 0.399 5 Medium-density gravel -12 -18 21.5 989 0.377 6 Close-grained pebble -18 -21.5 22 1356 0.366 7 Medium-density gravel -21.5 -26 21.5 989 0.377 8 Strongly weathered mudstone -26 -27 21 1042 0.379 9 Medium weathering mudstone -27 -37 23 3907 0.301 Vibration control limits Vibration control limits are ruled most strictly in Chinese Urban Region Environment Vibration Standards [6].
The numbers all above did not exceed 5mm/s2 or 2.5mm/s2 which are presented in the 4th quarter as the aerial parts peak acceleration and underground parts peak acceleration respectively.

The angular distribution of fibre oriented grains was characterized (for non-overlapping fibre components) by the full width at half maximum (FWHM) taken from a plot of normalized intensities as a function of the sample tilt angle ψ.
Although this results in a small total misfit of only 1.3%, the low number of atoms that actually match, i.e. one out of 49 for Au and one out of 64 for Cu, does not represent a reasonable coincidence of the two lattices.
Within the interface the ratio of the number of coinciding Cu- and Au-atoms is 4:3.

Much more micro-sized grains are also observed and some of them adhere to the surface of coarse-sized particles.
A total of 10 pellets are measured and the mean drop number at which the pellet break down is measured in times/0.5m for an individual pellet.
The main reasons for this phenomenon is that with the increasing number of micro-sized particles after the iron concentrate being ground, the capillary will become even narrower among the material particles and capillary attraction will become even stronger.