Road Construction Non-woven Geotextile

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made of polyester or polypropylene fiber
good burying, hydrolyzation & corrosion resistibility

Density	Thickness	Breaking Strength	Elongation of Fracture	CBR Bursting Strength	Vertical Penetration Parameter	Equivalent Aperture
g/m2	mm	KN/m	%	KN	cm/s	O95 mm
65	1.2	2.8	40 ~ 80	0.7	K x (10-1 ~ 10-3) (K = 1.0 ~ 9.9)	0.07 ~ 0.2
75	1.4	3.3		0.8
100	1.6	5.0		0.95
150	1.52	7.5		1.5
160	2.0	8.5		1.60
200	2.4	11		2.10
250	2.8	14		2.60
300	3.4	16		3.20
400	4.0	21		4.0
500	4.5	25		4.8

Q: The cushion is usually in the housing which parts: There was no other place in the house below

Q: Foam concrete for the roof cushion generally do much bulk ah: First help you correct it, foam concrete used in the roof should be the role of thermal insulation, not as a cushion.

Q: Do you need a cushion for roof waterproofing?: Where the process (such as waterproof material construction, floor construction, equipment installation, etc.) on the grass-roots level have certain requirements, must be grass-roots leveling treatment, in the project, commonly used leveling method is to use a certain strength of cement mortar or Fine stone concrete leveling.

Q: Why do the basics of the cushion waterproofing: Raft foundation do not do waterproof mainly depends on the design of the groundwater level considerations, calculated if the floor itself to meet the requirements, you can not do, and not rigid to do

Q: The top floor made waterproof playing cushion layer of how to do: Roof waterproofing can not use a single waterproof material, must be rigid and flexible combination of construction, flexible waterproof stretch is good, a little bit of settlement or deformation will not damage the waterproof layer. Rigid waterproof (ie mortar waterproofing agent) waterproof at the same time, can play a protective role, waterproof layer is not easy to be destroyed.

Q: Can the floor tiles be removed from the cement mats on the prefabricated board floor?: Cushion generally no steel mesh, even if there can be removed, it is used to inhibit the cushion cement mortar layer cracking.

Q: What is the difference between leveling and cushion?: Cushion is generally used in the ground floor of the building, leveling layer is generally used in the floor or roof. According to the above analysis, I believe that we use the quota, where the floor, roof construction, it should be used to find the level of the fixed sub-head, because there is no so-called concept of the cushion, leveling layer thickness is not what Specific provisions can also be used at the same time different layers of leveling, but must be carried out in accordance with the design requirements, so as not to exceed the load;

Q: Cushion, waterproof layer construction to do what information: 3, waterproof layer: In order to prevent the rain into the roof, groundwater into the wall, basement and underground structures, indoor water into the floor and walls and other materials layer.

Q: How to build a fine stone concrete cushion?: Reduce ground cracking, plus steel mesh. Reinforced mesh, should be placed in the middle of the concrete, because the protective layer of concrete thick Fang generally only 5CM thickness, so the middle is the best.

Q: Maintenance time of the cushion on the roof of the building: According to the "concrete structure construction quality acceptance criteria" provides: Concrete should be poured within 12h after the completion of the concrete to be covered, and moisturizing conservation;

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