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Data link: This paper presents the concept of high performance expanded concrete (HPEC), that HPEC is the expansion of concrete (EC) and high performance concrete (HPC) to play their respective advantages of organic combination. Firstly, the strength performance, expansion performance and the coordination between the expansion and the strength of the HPEC concrete are introduced systematically. The effects of the expansion and strength on the expansion and strength of the concrete are discussed. Hydration mechanism.Double Steel Roller - Road Machinery Equipment Manufacturers - Doan Machinery <.p>

Over the past 10 years, the research of concrete materials has been developed in the direction of high performance concrete (HPC), not only with high strength, but also with good construction and durability. In the configuration of high-performance concrete, are usually mixed with a superplasticizer (superplasticizer) and ultra-fine mineral admixture, which achieved a low-hydration, low cement, low hydration heat and high performance The With the development of concrete construction technology, the expansion of concrete has also entered the fluidization, high strength, superplasticization stage. All the trend of diversification of cementing materials, and widely used pumping concrete construction technology, and some also to achieve self-dense construction. It can be seen that the development of expansive concrete has entered the field of high performance concrete, on the one hand in the material preparation and construction are with high performance concrete characteristics; the other hand, in order to ensure the stability of high-performance concrete volume, Some bulking agent to compensate for its contraction. Expanded concrete and high performance concrete organic combination, forming a high-performance expansion of concrete (HPEC).

The shrinkage is large and the tensile strength is lower than that of concrete. When the shrinkage causes the tensile stress inside the concrete to exceed the tensile strength of the concrete, the concrete is cracked. It is generally considered that the fracture is the biggest drawback of concrete, which will lead to moisture, such as the invasion of harmful media, to accelerate the corrosion of steel bars and reduce the durability, and cause leakage is the phenomenon of structural use of the function of the reduction or loss.

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qqqq Mar 19 '17
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Stone excavation according to the type of rock, weathering degree and the degree of development of the cut, the inevitable excavation. For the long and deep common nature of this cut, the use of longitudinal layered sub-excavation, each layer first dug a channel, and then digging bilateral, so that each layer has a self-unearthed routes and short-term drainage trivial; Weathered ruptured rock mass, in order to ensure the construction of the slope of the firm and slope protection of the application of the industry, the use of path-type excavation, according to the height of the management application equipment platform, the formation of path slope. Excavation, the slope reserved 2-3m using smooth blasting or pre-splitting blasting operations, wild brush slope. Excavation in the discovery of a large amount of change, to stop the construction, from scratch to carry out engineering geological reconnaissance mission, and in accordance with the new geological data to amend the construction management, supervision and management engineers after the implementation of the approval. Due to the large amount of excavation works, the construction environment is complicated, the technical application is high and the construction is difficult. It is the link project of the construction of the project. According to the groove pile into the cut into the cutting line, carry out the table, clear and so on. Landslide section of the treatment, from the landslide side to the middle from top to bottom, is strictly prohibited unilateral pull groove excavation. Construction of a special view, to prevent landslides. In case of heavy rain, heavy snow, fog and six (including six) above the breeze and other rough climate, immediately stop the operation. recycled asphalt shingles in road applications unique recycling machinery patching cracks in concrete floor road rolling work
qqqq Mar 19 '17
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Waterproof coating variety, but its waterproof mechanism can be divided into two categories, one is the coating type, the second is the hydrophobic type. Waterproof mechanism of coating type waterproof cheap outdoor fence wire coating Coating-based waterproof coating is through the formation of a complete coating to block the passage of water or water molecules to penetrate the water.

Many polymer coatings between the molecules and molecules always have some gap between anti fungal outdoor decking balcony the width of about a few nanometers, it is reasonable to say that a single water molecule is fully able to pass, but the natural water is usually in the state of association, dozens of Water molecules due to the role of hydrogen bonds and the formation of a large molecular group, it is actually difficult to pass through the polymer gap, which is waterproof coating coating with the main reason for waterproof.

Waterproof mechanism of hydrophobic waterproof build flooring for deck coating Since some polymer molecules contain hydrophilic groups, the complete continuous coating of the polymer does not guarantee that all polymer coatings have good water resistance. If the polymer itself has a hydrophobic nature, so that water molecules and the coating is not compatible between, you can fundamentally solve the problem of water molecules, polysiloxane Deck and Dock Paint for Composite Flooringwaterproof coating is designed according to this principle.

qqqq Mar 17 '17
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below introduce real wood to everybody multilayer floor actor defect, everybody can consult! Real wood is multilayer the real wood of floor actor defect is multilayer the advantage stability of the floor is good as a result of multilayer the unique structure that crisscross of freely of real wood floor forms, make its stability first-rate. Need not worry about floor be affected with damp be affected with damp to be out of shape too, also be the best floor with installation warm ground. Material benefit of price of wooden floor picture is multilayer dosage of lumber of real wood floor is big without real wood floor, and can make full use of material, it is a lot of cheaper that accordingly the price compares real wood floor. Easy do multilayer what the exterior lacquer of real wood floor handles is very good, wearability is very tall, and need not spend too much energy to maintain. The market is superior multilayer real wood floor need not wax inside 3 years, also can preserve lacquer area if glorious is new. Sexual price compares the data that uses high as a result of place of multilayer and compound floor is log, crural feeling and real wood floor board are so same, have distinction hardly.

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qqqq Mar 17 '17
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below introduce real wood to everybody multilayer floor actor defect, everybody can consult! Real wood is multilayer the real wood of floor actor defect is multilayer the advantage stability of the floor is good as a result of multilayer the unique structure that crisscross of freely of real wood floor forms, make its stability first-rate. Need not worry about floor be affected with damp be affected with damp to be out of shape too, also be the best floor with installation warm ground. Material benefit of price of wooden floor picture is multilayer dosage of lumber of real wood floor is big without real wood floor, and can make full use of material, it is a lot of cheaper that accordingly the price compares real wood floor. Easy do multilayer what the exterior lacquer of real wood floor handles is very good, wearability is very tall, and need not spend too much energy to maintain. The market is superior multilayer real wood floor need not wax inside 3 years, also can preserve lacquer area if glorious is new. Sexual price compares the data that uses high as a result of place of multilayer and compound floor is log, crural feeling and real wood floor board are so same, have distinction hardly.

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qqqq Mar 17 '17
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the nutrient cate of the family comes out from the kitchen, a such significant position, its adornment also is very important. How to decorate our kitchen, the kitchen that how lets us produces main effect in little space, this is the problem that we pay close attention to very much. China floor net edits today not everybody unscrambles kitchen wood floor to decorate case, it is good to see a kitchen lay wooden floor together. Is floor of kitchen shop wood good? The floor tile with idiomatic slam the door, choose Mudebanzun to be kitchen floor material, sure its advantage attracts customer, wooden floor looks to extend the advantage that sticks a kitchen together below. 1, floor foot touch is very well-known, the characteristic that wooden floor has felt with its foot gets of consumer love, use sitting room and bedroom extensively in decorating, open mode kitchen and sitting room dining-room become repeatedly, laid wood floor lets lie personally on the person foot of the kitchen more comfortable. Picture of kitchen wood floor 2, the floor is prevented it is better to slip compare with ceramic tile photograph, the skid resistance of the floor appears more advantageous.

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qqqq Mar 17 '17
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arranged separately to hanging hanging point. 2, the wooden keel wood ceiling keel on the screen, which will be part of the corrosion, cracking, oblique mouth part from insect. The project of the wooden keel must carry on fire, will generally be fireproof paint brush or sprayed on the surface of wood, also can put the wood impregnated with fire retardant coating groove. The wooden keel direct contact structure, such as wall keel keel, keel beam side and end wall should be inserted into or contact brush

preservatives. The preservative requirements brushing with moistureproof, mothproof and anti decay effect. 3, the installation of boom (1) setting method for M8 boom fasteners or M10 expansion bolts / 25 x 3 or 30 x 3 angle angle is fixed on the bottom surface of cast-in-place floor. For the M8 expansion bolt boring depth more than 50mm, the hole diameter should be 10.5mm; for M10 expansion bolt boring depth more than 60mm, the hole diameter should be 13mm. The use of more than Phi 5 high-strength

nail / 40 * 4 angle or plate fixed on the bottom surface of the cast-in-place floor. In the water floor or the roof panel, layout in the hanger plate bottom of the embedded iron, iron pieces with delta =6mm thick steel plate, with the diameter of 8 L and 4. 150mm. The concrete cast-in-place floor before or precast slab grouting pre buried reinforced with 10. (for people on the roof, hanger specifications optional 6 or Phi Phi 8) requirement for the embedded position is accurate, if the cast-in-place floor, should play the line

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qqqq Mar 17 '17
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lumber , composite lumber , composite material, and Aluminum. Lumber . from western Canada British Columbia . near the patio door while out of . We provide various kinds of Wood Plastic Composites products, including Wps Board line, Wood Plastic Composite Flooring, Wpc Pallet Lines, PVC . composite board line | wood plastic composite decking line | wood plastic composite . strip lines WPC lumber lines WPC Door frame lines WPC . HARDY SMITH provides wood plastic composite, wpc machinery, wpc technology, wpc lumber, wood plastic composite machinery, wpc products, wpc flooring . wood plastic composite lumber | wood plastic composite products | wood plastic composite machinery supplier India, China, UK, Canada , Russia .Doors Door Accessories DOOR KNOBS& HARDWARE Door . Composite Deck Screw Deck Screws Browse Lumber . The Home Depot Canada The Home Depot . headers, in door and window frames, sliding door rails, steps, . structural composite lumber products . in B.C., Canada has also purchased a . products. Door Stock HMS Lumber door line . grown in British Columbia, Canada . Because Hemlock is . , then a metal composite is shaped and filed .door openings, places where dimensional lumber . for measuring lumber in the United States and Canada . It . also called composite wood, includes .properties of hdpe recycled plastic lumber
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plastic composite floor; Plastic and wood composite lumber ; Wood . composite wood as outside flooring x edging board composite decking canada .Composite Panels Door Hardware Door Lites Exterior Doors Hardwood Lumber . volume comes from Eastern Canada Saskatchewan and east, where . application. Counters, door frames, wall . density lumber , structural composite lumber SCL . the U.S. and Canada . While temperature has an .United States, Canada , Germany, France . plastic composite door . Composite Lumber Build It Green Recycled Plastic and Wood Composite Lumber . In the United States and Canada the standard lengths of lumber are feet . . door openings, places where dimensional lumber . composite lumber .Door . MiraTEC Composite Trim . we take pride in our lumber . We obtain our products from . North America and Canada , and maintain strict . United States, Canada , Germany, France . composite door . composite outdoor benches Composite lumber includes a variety of different lumber .above ground pool composite decks
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qqqq Mar 16 '17
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Sliding mode cement concrete paver When laying concrete pavement, the general construction process is: spiral feeder to cement concrete in the width of the wide spread out, adjustable height of the hydraulic scraper to the concrete scraped to the pre-shop height, the hydraulic drive Of the frequency of the vibration into the vibration of the vibrator, so that the concrete to achieve the desired compact effect; and then pound on the board, under the tamping, and further solidified at the same time the surface of coarse aggregate pressure into the cement concrete, forming a thick layer of mortar Layer; and then by the wiping plate and lateral sliding template to squeeze each other to form concrete pavement concrete. Sliding mode cement concrete pavers are usually composed of power transmission system, main frame system, walking system, automatic control system, operating device, auxiliary system and other components. The advantages of the rail paver are simple structure, low price, good reliability, easy maintenance, easy operation, relatively low requirements for the mix; but its construction requires a lot of rails and templates, labor intensity, construction speed And construction quality are relatively low.Road Sealing Machine - Road Machinery Equipment Manufacturers - Doan Machinery

Cement concrete pavers often appear in the following common faults: cement concrete paver spiral feeder failure spiral feeder in the course of the use of high oil pressure, do not turn the phenomenon, the reason may be from the 4 Aspects. Spiral feeder ends are damaged. Generally due to the bearing outside the oil seal and dust jacket caused by damage. The concrete mortar enters into it to cause the screw feeder to stuck or the resistance is too large, causing serious damage to the bearing. At this point only need to replace the bearings, oil seals and dust cover, add a new lubricant can be. The chain is too long. When the chain is stretched to a certain extent, the sprockets will be stuck in the box box shell, this time to be renewed and filling the oil. Planetary gear reducer. Remove the helical feeder and the sprocket cover, turn the active sprocket, if not turn, just remove the drive wheel to observe the damage to the planetary gear unit. The cause of the damage is generally due to individual gears, ring gear processing caused by poor quality, need to replace the assembly. Hydraulic pump, hydraulic motor failure. If the hydraulic pump is damaged, the indication value of the hydraulic pressure gauge is low; if the hydraulic motor is damaged, the indication value of the hydraulic pressure gauge is also low, and the damaged side has no action. In the event of any of the above, the assembly must be replaced.

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qqqq Mar 16 '17
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relationship, so the density of sound insulation is relatively good, molded door is relatively light, which is the root cause of poor sound insulation door. Note: however, the sound insulation of the flat hollow door will be even better than the real wood door. 2, look at the thickness of the wood window. The thicker the surface layer, the better the insulation. General wooden doors of the use of the laminate should be 8mm thick. The thickness of the face plate is better, but the cost will be increased. But the tin surface

layer: 3mm thick iron fire door, sound insulation effect is good. 3, look at the flatness of the door. The flat wooden doors, Mentao combination with better, but no matter what the structure. As long as the deformation of the insulation doors must not, air leakage. There is a little professional, expansion glue quality between the wall and door, this point is not good it will seriously affect the sound insulation. Note: in fact, the sound of the door and window industry with the fire door is the same as the national level, rather

than a single definition of a content. The concept of "sound" and "sound". The principle is sound depends on the quality or material density (time, when the iron door unit area total weight less than its sound than wooden doors), and sound absorption depends on the surface area of the material and fine surface roughness (space rock wool, mineral wool, and the foam is not insulation sound-absorbing material). The method how to detect quality doors sound insulation effect above is house Xiaobian introduce you, and I

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qqqq Mar 16 '17
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