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What is the geotextile for ditch drainage?
- Generally used polyester short wire geotextile, the specifications are 300g per square meters
With sand and gravel, geotextile do blind ditch how to construction
- Geotextile wrapped sand and gravel, play a role in filtering drainage, the equivalent of the use of blind ditch, Ji child irrigation twisted thieves ghost Creek Handan Huaxu geotextile material manufacturerss
Do you have a drainage board and geotextile on the roof
- Good, but you use very little, the purchase is difficult, the price will not be cheap Huazhi geotextile material manufacturerss
What is geotextile cloth?
- Geogrid, geotextile, geomembrane manufacturers, specializing in the productions
Now geotech how much money a square meter?
- According to geotextile specifications to offer. Ranging from $ 1-9.60.s
Production of acupuncture carpets, geotextiles, warm flakes, paper blankets, air filter materials, the main raw material is what?
- The main raw material is polyester, polyester is the basic composition of polyethylene terephthalate, it is also known as polyester fiber (PET), the long chain of its chemical formula H (OCH2CCOCO) NOCH2CH2OH, the relative molecular weight is generally ~ The In fact, there are a small amount of monomer and oligomers present. These oligomers have a low degree of polymerization and are present in an annular form. Polyethylene terephthalate can be obtained by polycondensation of terephthalic acid (PTA) and ethylene glycol (EG) by direct esterification of ethylene terephthalate 9BHET. From the composition of polyester molecules, it is composed of short fatty hydrocarbon chain, ester, benzene ring, terminal alcohol hydroxyl group. Polyester molecules in addition to the existence of two hydroxyl groups, there is no other polar groups, and thus polyester fiber hydrophilic poor. Polyester molecules contain about 46% of the ester group, ester groups can be hydrolyzed at high temperatures, thermal cracking, the case of alkali is the saponification, the degree of polymerization reduced; polyester molecules also contain aliphatic hydrocarbon chain, it can make polyester molecules have a certain But because the polyester molecules can not rotate the benzene ring, so the polyester macromolecules are basically rigid molecules, molecular chains easy to maintain linear. Therefore, polyester macromolecules in this condition is easy to form crystals, so the polyester crystallinity and orientation is higher.s
300g / m2 geotextile package is what it means
- 300g / m2 Geotextile: refers to the weight of 300g per square meter (model) 300g / m2 geotextile package: refers to the outsourcing; with 300g of geotextile to wrap something; for example: With 300g / m2 geotextile wrapped gravel. Thes
Subgrade geotextile lap law need to suture it
- General geotextiles require stitching. Geotextile stitching must be carried out continuously. Before the overlap, the geotextile must overlap at least 150mm. The minimum seam distance from the geotextile edge is not less than 25mm.s
Have you ever done business with plasterboard manufacturers
- Have you ever done business with plasterboard manufacturers?If not and if you are looking for a good plasterboard manufacture,here is the one I am going to recommend to you.Linyi Y...
What's the function of construction management certification
- A Certificate in Construction Management program is generally designed for individuals with work experience and a bachelor's degree. The curricula of these programs teach stude...
what does hinge mean
- What does hinge mean?The hinge is a mechanical deviceused which connect the two solids and allow them to rotate.A hinge may be made of a movable component, or by a collapsible mate...
how to install door closer
- Door closer is a common household appliances in our life. It is widely used in large buildings such as office buildings, to limit the spread of fire and the ventilation of building...
Difficulties of Project Management Construction
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