First, the product description
Products:
"Sisiyuan" brand modified polypropylene fiber Fiber Co., Ltd., Jiangsu Sisiyuan integrated development dedicated to the construction of the organic fiber, the product is anti-static and anti-aging and other special craft, joined by polypropylene pellets masterbatch, blending, spinning, winding, drawing, cut from the short-cut fiber, which can effectively improve the bond strength of the fiber and the matrix material, used in the mortar / concrete, can prevent, reduce and delay the early plasticity cracking, greatly improve the overall performance of the mortar / concrete.
Parameters and performance:
锟斤拷 diameter 锟斤拷m: 18-50
锟斤拷 Length mm: 3,6,9,12,16,18,20
锟斤拷 breaking strength MPa:> 400
锟斤拷 Density g / cm3: 0.91
锟斤拷 initial modulus GPa:> 3.5
锟斤拷% elongation at break: 15-35
锟斤拷 melting point 锟斤拷: about 160
锟斤拷 ignition 锟斤拷: about 580
锟斤拷 Acid resistance: High
锟斤拷 Security: Non-toxic, non-irritating
锟斤拷 Alkali resistance: High
锟斤拷 thermal conductivity: very low
锟斤拷 Anti-low temperature resistance: Good
锟斤拷 Magnetic: None
"Sisiyuan" brand modified polypropylene fiber cross-section of clover type or round, high alkali resistance, good chemical stability, mortar / concrete dispersion excellent bond strength is very strong, per cubic tens of millions of fibers within a three-dimensional chaos meters distributed in the concrete, from a purely physical effect on the reinforced concrete.
Role:
As a secondary reinforced concrete material, "Sisiyuan" brand modified polypropylene fibers can greatly improve their crack, impermeability, impact, shock, frost, impact and abrasion resistance, anti-burst performance and easy sex, pumping, water retention.
Application areas:
Hydropower projects, in-situ and precast concrete, municipal, roads, bridges, housing construction, industrial production of premixed mortar.
Packing:
The basic package 0.9kg / bag or 1.0kg / bag. Can provide the best packaging specifications according to user requirements.
Second, the use
First, the "slightest touch" fiber used in concrete in
1, the proposed amount hspace = 0
Per cubic meter of concrete proposal to join 12-19mm fiber 0.6-1.8kg, the original concrete mix unchanged. (For reference)
2, using the method
Select a different dosage according to the requirements of the project, in the front range of the added amount given, the better the content, the higher the crack, "Sisiyuan" fiber reinforced the role of the physical play in the concrete, the fiber itself is an inert material, Concrete does not react with other ingredients and additives, adding fiber without changing the original mix concrete, aggregates of various performance indicators, no special requirements.
锟斤拷 feeding sequence and methods
When using fiber and sand, stone and other aggregates while adding, adding water to the wet mix
The best in Canada, while the sand and gravel sand and gravel in the middle of the fiber increases, the effect will be better.
锟斤拷 fiber concrete mixer
Stirring time than concrete without fibers slightly longer mixing time 30-60 seconds, to ensure that the fiber can be uniformly mixed in the concrete. (Highly dispersed concrete products in the commodity extend temporarily without stirring time)
3. Slump adjustment
Due to thickening of the fibers of the fiber is added to increase the viscosity of the concrete mix, making a slight decrease slump. Each project requires a different slump, so before using the experimental project to adjust slump, if the slump does not meet the construction requirements, increasing the amount of water should not be used to increase the slump, but should adopt appropriate plasticizing agent or superplasticizer to increase the slump to meet construction requirements.
4, the intensity of the test
The addition of fiber does not affect the strength of concrete, but it should be in front of each project according to the provisions that have been identified using concrete mix concrete strength test fiber.
5, knock pressure surface
Concrete can be carried out once the pressure after the mold surface, to complete before the end of the second pressure surface of the concrete to the initial setting, in the face of pressure should make full use of steel or iron trowel, smooth enough wood fiber will be triggered.
6, surface type and conservation
Incorporation "Sisiyuan" fiber concrete in the molding no special requirements, but should ensure the concrete fully tapped.
Incorporation "Sisiyuan" fiber concrete curing, no special requirements, according to the conservation of normal concrete was not due to the incorporation of "Sisiyuan" fibers relax early curing of concrete.
7, description
"Sisiyuan" fiber only as a secondary reinforcement of concrete, the main role is to inhibit the production of concrete cracks and improve the impermeability of the concrete base, extend the service life of concrete, rather than the main structural reinforcement force.
Therefore, the "slightest touch" fiber can not change the original design of the reinforcement ratio.
Second, the "slightest touch" fiber is applied mortar
Mortar as construction materials appear in the actual construction process often some drawbacks: brittle, dry shrinkage, low tensile strength, impact resistance and low deformation and poor, so that cracks easily mortar products, thereby reducing the durability of the building sex.
Division I and related research institutes jointly developed a new generation of dedicated organic fibers ---- mortar modified polypropylene (PP) fiber, with a special production process and surface treatment, cross-section was clover (Y) type, excellent mechanical properties , mixed mortar, were evenly distributed to the three-dimensional chaos, highly decentralized, with mortar bond strength is very strong, can prevent, reduce and delay due to creep, plastic shrinkage, syneresis, chemical shrinkage, temperature and load microcracks and other factors, which significantly improves crack resistance, impermeability mortar products, mortar integrity, flexibility, continuity and durability can be improved.
Use Sisiyuan brand polypropylene fibers, no additional special equipment, without changing the composition of the mortar, construction convenient operation, increased cost much, does not pollute the environment, and thus has been widely used in the mortar.
1, the proposed amount
6-10mm per cubic meter mortar recommend adding fiber 0.9-1.2kg. Adding volume to select different content according to project requirements, given in front of the added amount range, the higher dosage crack better.
2, feeding sequence and methods
锟斤拷 dry mix
After use, the portion of sand was added to the mixer, cement, adding "Sisiyuan" fiber, to ensure the fibers are uniformly fall cement, sand, and then adding the remainder of the cement and sand, stirring time to uniformly disperse the fibers in the mortar prevail.
锟斤拷 wet mix
In use, the rear part of the sand added to the mixer, cement, adding "Sisiyuan" fiber, to ensure uniform fiber falls cement, sand, and then add the remaining cement, sand and water, stirring time to uniformly disperse the fibers in the mortar is Associate.
3, mixing time
Mixers best use of compulsory mixer;
For dry mixing, mixing time extension without fiber than about 1 minute;
For wet mix, stirring time than that without fiber mortar extend about 30 seconds.
4, description
To ensure that the fibers in the mortar mix, to ensure that each tank mortar mixing time.
If you are not satisfied when using the above method or stir trouble, please give me the company to seek technical advice or advice to the relevant professionals.
Third, the "slightest touch" fiber Cautions
Only as a secondary reinforcement, not a substitute for structural reinforcement material (such as reinforcing steel), not to be used for the settlement and resolved by force or impact cracking the case, not because of the use of fibers and reduce the size of the main structure, the use of fiber construction and maintenance should be strictly in accordance with relevant state regulations and practices.
Fourth, the "slightest touch" fiber storage conditions
Prevent prolonged exposure to sunlight.
Fiber Co., Ltd., Jiangsu Sisiyuan main production and operation of fiber, polypropylene fiber, polyacrylonitrile fiber, wood fiber, polyester fiber, lignin fibers, cellulose fibers, polypropylene mesh fiber, fiber wall clothing, high-strength polypropylene wire, high-strength polypropylene yarn twisting, spinning step silk, silk high-strength polypropylene, high-strength polypropylene line, polypropylene line, colorful wall clothing fibers, concrete special polyacrylonitrile fiber, anti-rutting agent, machine stitching, needle work lines, twisted sideline, Container lines, tied note lines, kite lines, shoes, feed line, ball line, polyester staple fiber lines.