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Building Roof Waterproof Application Of A New Material Wenye Gong1, a, Donglin He2, b 1North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou, 450011, china 2KaiFeng University, Kaifeng, 475000, china abaidsz@163.com, bkfuhdl@yahoo.com.cn Keywords: roof waterproof, GT, application, base, construction Abstract.
According to the test of professional departments, performances of GT materials are shown in Table 1 [2].
Table 1 GT performance index of flexible typeⅠ No. items Performance requirements Conditions Unit Technical index 1 Tensile strength MPa ≥ 2 2 Elongation percentage of breaking % ≥ 150 3 Adhesion stress MPa ≥ 1 4 Flexibility of low temperature No cracks ±5 ~ -10˚C, around Φ10 rods 5 Watertightness No leakage water pressure 0.3 MPa, 30 min 6 Resistance to freeze-thaw No cracking, blistering or shedding -20˚C ~ +20˚C, 20 cycles 7 Alkali resistance No cracking, blistering or shedding Immersed in Ca(OH)2 saturated solution for 14 d 8 Weather resistance No cracks, blistering, peeling, wrinkles or powder 600 W Xenon lamp weather instrument for 500 h 9 High temperature resistance No flowing, peeling or wrinkles 80˚C ± 2˚C, 5 h 10 Low temperature resistance No cracking or peeling -40˚C ± 2˚C 11 Drying time h Surface drying ≤ 4, actual drying ≤ 8 Base treatment to GT roof waterproof Before making roof waterproof layer, constructional base should be treated.
Water volume of roof gutter is concerned with diameter and amounts of the downspout.
The distance for rain water draining shall be no more than 30 m, and the water drop in gutter should not exceed 200 mm. 4.

Water. 11, 559 (2019) 1-20
Water Res. 44 (2010) 3147–3165
Ding, Nanotechnology for Environmental Decontamination; McGraw-Hill Professional: New York, NY, USA, 2011; ISBN 0-07-170279-2
Water Res. 100 (2016) 105–115
Water Res. 42 (2008) 4591–4602

Simulation Study of Converter Coherent Jet Oxygen Lance Minggang Shen 1, a, Lei Zhang 2,b Zhenshan Zhang 3,c 1 School of Materials Science and Engineering, LiaoNing University of Science and Technology, AnShan City, LiaoNing Province, 114-051, China 2 Secondary School of Professional Technology, LiaoYang City, LiaoNing Province 111-000, China 3 School of Vocational and Technical, LiaoNing University of Science and Technology, AnShan City, LiaoNing Province, 114-051, China alnassmg@163.com, banshanzhanglei@126.com, clnaszzs@163.com Keywords: steelmaking, top blowing, the coherent oxygen lance, simulation Abstract: In this paper, hydraulic model experiment is performed for comparing the agitation ability of the coherent blowing and the top-bottom blowing.
Table 2 180t BOF-LBE data and main experiment parameters Type Liquid in the pool Blowing gas Density of gases (Kg/m3) Density of liquid (Kg/m3) Flow rate of top lance （Nm3/h） Pressure of top lance (MPa) Prototype Molten steel Oxygen 1.43 7000 32000 1 Model Water Air 1.29 1000 42.0 0.796 Experimental Apparatus Experimental model of 180 t LBE the actual size of 1/10 of plexiglas device is shown in Figure.1.
Experimental simulation of oxygen with compressed air, water simulation of molten steel. 1 - BOF plexiglas model; 2 - Oxygen lance; 3 – Pressure meter; 4 - Flow meter; 5 - Regulator devices; 6 - Gas tank; 7 - Air compressor; 8 - Conductivity Meter Fig.1 Experiment Apparatus Results and Analysis of the Hydraulic Model Experiment Figure.2 shows the lance-position and mixing time curve, it can be seen mixing time is not simple to reduce by reducing lance-position.

For example, in electrical engineering, the problems of material, lightning protection measures, size of pipelines, angle of pipelines, etc. must be considered; in water supply and Drainage, the problems of pressure, reverse flow, seal of pipe, etc. must be considered; in petroleum and natural gas, the problems of seal, dry, welding, anti-corrosion, etc. must be considered.
Fig. 1. the The AOE of a pipeline laying Routing selected in pipeline laying The AOE of a pipeline laying in water supply and Drainage is showed in Fig.1[6].
Addison-Wesley Professional, USA, 2006 [2] Michael Sipser.

Introduction Amphibious vehicle is a kind of car which is maneuver and flexible when running on the road, while it’s concealment when running on the water.
Finite Element Modeling Ansysworkbench does well in FEA ,but it’s still not very good at modeling compared with the professional modeling software, for example UG, Inventer and Solidworks .etc[4,5].
Computation of flow around inland waterway vessel in shallow water[J].

How to reduce project investment and save space in utmost possible on the basis of reasonable comprehensive pipeline planning, professional pipeline organization and convenient maintenance is an important and difficult topic facing in the design of underground railway comprehensive pipeline.
References [1] Yang Li, water supply and drainage pipeline engineering technology, edited by water conservancy and hydropower Publications (2010.3)

Introduction Robotic cleaning systems, professional as well as personal, have had a promising development, due to the high number of possible applications and to the fact that they exempt humans of a tiring, repeated and often dangerous activity.
Different working conditions were generated: cleaning of dry surfaces, cleaning of watered surfaces and cleaning using window detergent solution.
The study performed on watered surfaces showed almost insignificant decrease of the cup performance, due to the fact that water was practically eliminated from the contact area during cup fixing.
Fig.6 (A) .Comparation among the maximum values of the detachment force: Fd – dry glass; FdUd – watered glass; FdDet – glass with detergent for window cleaning A similar test stand was developed for the study of cup fixing on vertical planes.
As previously, the research covered also the situation of fixing on watered glass.

The functional partition in the kitchen’s operation area is not professional; as a result, the moving line doesn’t go smoothly.
Change the kitchen’s traditional extensive water-use patterns and reduce water wastage.
Adopting recycling techniques of disposing rainwater and wastewater to save water resources [3].
Use rainwater collecting as well as water recycling and treatment systems for greening and roof water spray cooling to save water resources.
Its working principle is that, at first, the water spray absorbs the soot, and then water and oil are separated in the collection box, therefore, water can be used circularly.

Some of them (eg. fly ash, slag) are applied for building materials production for a long time, while others are in the testing phase yet - as evidenced by many studies and experimental works presented at professional / scientific forums.
Results Water demand.
Tab. 1 Results of water demand Sample w [%] Water demand [%] Ref. 97 - G-20 94 -3.1 G-60 94 -3.1 B-20 94 -3.1 B-60 98 +1.2 Samples with substitution of filler by ground materials need for lower amount of water for specified consistency, except for 60% of brick.
For specimens with 60% substitution by clay bricks powder, higher water demand was detected.
Despite higher amount of water in B-60, the strength values including adhesiveness are very promising.

One was conventional TRLL that was used widely in traffic professional specifications of our country.
Water stability experimentation and analysis.
At present, water damage is the most common disease of asphalt pavement.
Marshall Test was adopted to evaluate resistance to water damage of asphalt mixture.
High Temperature Stability and Water Stability of Asphalt Mixture Modified by Polyester Fiber.