Where can I open the wooden box of the military service center
Foxconn Cheng Company Address: No.8 Kexin Road, export processing zone, hi tech West District, Cheng
bus line: Metro Line 1 → Metro Line 2 → G71, the whole journey is about 29.1km
1. Walk about 400m from Cheng railway station to the North Railway Station
2. Take Metro Line 1, pass 4 stations to Tianfu Square Station
3. Take Metro Line 2, pass 12 stations to caolu station
4. Walk about 140m to caolu station
5 Take G71 bus, go through 12 stops, reach Tianyuan intersection station of Hezuo road
6, walk about 610 meters to Foxconn Technology Group
1. The proction of different
fly ash is the fine ash collected from the flue gas after coal combustion, and fly ash is the main solid waste discharged from coal-fired power plants
ore powder is a general term for stone powder and its substitutes that meet the engineering requirements, and it is the proct of crushing and processing ore
The mineral powder can effectively improve the corrosion resistance of cement concrete to seawater and fresh water, and resist sulfate corrosion. It is especially suitable for anti seawater engineering, underground engineering and pavement engineeringfly ash can be used as a resource, such as a concrete admixture
extended data :
chemical composition of fly ash Al₂ O₃、 FeO、Fe₂ O₃、 CaO、TiO₂、 MgO、K₂ O、Na₂ O、SO₃、 MnO₂ In addition, there is P & 8322; O₅ And so on. Among them, silica and titania come from clay and shale; Iron oxide mainly comes from pyrite; MgO and Cao come from their corresponding carbonates and sulfates
Adding fly ash, mineral powder and other active mineral admixtures into concrete can not only solve the problem of reusing these instrial wastes, but also save resources and rece energy consumption, and improve the workability, compressive strength and rability of concrete. The use of fly ash and mineral powder in concrete proction can effectively protect the environment, improve the workability of concrete and rece the cost of concrete
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effect of mineral powder
1, saving cement consumption by 30-60% (including cement mortar), recing the cost of cement and concrete engineering
It has pozzolanic effect and increases the compressive, tensile, flexural and shear strength of concrete It can significantly rece the hydration heat of concrete, improve the workability of concrete, rece segregation and bleeding, rece the variation of temperature difference and internal stress of mass concrete, and restrain the cracks caused by temperature difference It can inhibit the alkali aggregate reaction, and significantly improve the ability of concrete to resist alkali aggregate reaction It can exist in the form of micro aggregate in concrete, improve the pore structure, refine and homogenize the pore size, and improve the impermeability, freeze-thaw resistance and rability of concrete It can significantly rece the bleeding of cement concrete and improve the workability of cement concrete It can effectively improve the corrosion resistance of cement concrete to seawater, fresh water and sulfate. It is especially suitable for anti seawater engineering, underground engineering and pavement engineering Plastic concrete can be prepared under the condition of constant water consumption to avoid quality problems caused by dense reinforcement and poor vibration. Under the same condition, it can make the concrete flow into the mold, rece the abrasion of concrete pump body, pipe and mold, and prolong its service life It can prepare masonry, plastering cement mortar and low-grade cement. In the case of meeting the strength requirements, it can not only save 30-60% of the cement, but also improve the construction operability It is suitable for making environmentally compatible cement-based materials and admixtures for high performance concretethe main component of talc powder is talc, which is mainly used for instrial purposes. It is used to isolate objects and avoid adhesion. There is also the lubrication used in Billiard Club before.
According to jtgf40-2004 technical specification for Highway Asphalt Pavement Construction:
1, mineral aggregate can be mixed when the heating temperature reaches the following temperature:
(1) the heating temperature of aggregate of intermittent mixer is 10 ~ 30 ℃ higher than that of asphalt
(2) the heating temperature of mineral aggregate of continuous mixer is 5 ~ 10 ℃ higher than that of asphalt
2 Heating temperature of petroleum asphalt:
50 × petroleum asphalt / 160 ~ 170 ℃
70 × petroleum asphalt / 155 ~ 165 ℃
90 ᦇ petroleum asphalt / 150 ~ 160 ℃
110 × petroleum asphalt / 145 ~ 155 ℃
3. Discharge temperature of asphalt mixture:
50 ﹥ petroleum asphalt / 150 ~ 170 ℃
70 ﹥ petroleum asphalt / 145 ~ 165 ℃
90 ﹥ petroleum asphalt / 140 ~ 160 ℃
110 × petroleum asphalt / 135 ~ 155 ℃
The temperature of asphalt mixture transported to the site shall not be lower than the following temperature:50 ᦇ petroleum asphalt / 150 ℃
70 ᦇ petroleum asphalt / 145 ℃
90 ᦇ petroleum asphalt / 140 ℃
110 ﹥ petroleum asphalt / 135 ℃
extended data:
classification of asphalt concrete:
1. Asphalt concrete can be divided into petroleum asphalt and coal asphalt according to different binders; Some countries or regions also use or mix natural asphalt
According to the different types of aggregates used, they can be divided into gravel, gravel, Sandy and slag, and gravel is the most common. According to the maximum particle size of the mixture, it can be divided into coarse particles (below 35-40mm), medium particles (below 20-25mm), fine particles (below 10-15mm) and sand particles (below 5-7mm) According to the composition of mineral aggregate, it can be divided into dense suspension structure (such as AC - Ⅰ), skeleton void structure (such as OGFC) and dense skeleton structure (such as SMA) According to the gradation of mineral aggregate, it can be divided into dense gradation, semi open gradation and open gradation. Among them, the dense graded crushed stone mixture with hot mix and hot paving is rable, high strength and good integrity. It is the representative material for building high-grade asphalt pavement and is widely used