Epoxy-coated Prestressing Steel Strand
PRODUCT DETAILS
Product information
The application of prestressed steel strand in concrete beams is very wide, including Bridges, high-rise buildings and water conservancy projects. Among them, bridge is one of the main fields of application of prestressed steel strand. As an important part of transportation, the quality and safety of Bridges are crucial to social development. The use of prestressed steel strand can greatly improve the bearing capacity and durability of the bridge, and ensure the safe operation of the bridge.
When the concrete beam bears the load during use, the prestress of the prestressed steel strand will be gradually released, so that the concrete beam is in a state of compression. At this time, the bearing capacity and durability of concrete beams will be greatly improved.
Classification of prestressing technology
1. Different classification according to prestressing method
①The first method:
On the pedestal or steel form, the steel bars are first tensioned and fixed with temporary fixtures, and then the concrete is poured. After the concrete reaches a certain strength, the prestressed tendons are loosened to make the concrete generate prestress. Suitable for prefabricated elements.
②Post-tensioning method:
The components or structures are made first, and then the concrete is stretched after reaching a certain strength, so that the concrete generates pre-stress. Applies to cast-in-place components.
2. According to the different bonding methods:
①No bonding:
Refers to the prestressed concrete in which the prestressed steel strand is free to expand and deform and does not bond with the surrounding concrete. The full length of the unbonded prestressed steel strand is coated with grease and protected by a plastic tube.
②With bonding:
It refers to the prestressed concrete in which the prestressed steel strand is completely bonded and wrapped by the surrounding concrete or cement paste. Both pre-tensioned prestressed concrete and post-tensioned prestressed concrete with pre-set channels pierced and grouted belong to this category.
③Slow bonding:
It means that the prestressed tendons can be stretched and deformed freely during the construction stage, and do not bond with the surrounding retarding adhesive, but the prestressing tendons are bonded with the surrounding concrete through the cured retarding adhesive within a predetermined period after the construction is completed. The prestressed tendons and the surrounding concrete form one body and work together to achieve a sticky effect.
3. Classification by prestressing degree
①Fully prestressed structure:
Prestressed concrete that does not allow tensile stress at the tensile edge under full service load. Applicable to the requirement that the concrete is not open
cracked structure. Partially prestressed structure: Prestressed concrete that allows certain tensile stress or cracks to occur at the tensile edge under full service load.
②Partially prestressed structure:
Prestressed concrete that allows certain tensile stress or cracks to occur at the tensile edge under full service load.
Chinese National Standard GB/T5224-2014
|
Structure |
Nominal Diameter (mm) |
Tolerance (mm) |
Cross-sectional area (mm) |
Every 1000m |
Nominal Strength (Mpa) |
Yield strength is not small (%) |
Elongation not less than (%) |
1000h relaxation rate % is not greater than the initial load is 70% of the maximum load |
|
1*2 |
10.00 |
+0.25 |
39.3 |
308 |
|
|
3.5 |
2.5 |
|
1*3 |
10.80 |
+0.20 |
58.9 |
462 |
1470 |
1320 |
3.5 |
2.5 |
|
1*7(standard) |
9.50 |
+0.30 |
54.8 |
430 |
1670 |
1500 |
3.5 |
2.5 |
|
1*7(Draft type） |
12.70 |
+0.40 |
112 |
890 |
|
|
3.5 |
2.5 |
More details
|
Product Name |
prestressed concrete strand (PC strand) |
|
Material |
SAE1006-1080,WA1010,Q195,SWRH32-37,SWRH42A-77A,SWRH42B-82B |
|
Size Tolerance |
±1% |
|
Wire Gauge |
1 - 50 mm |
|
Dia tolerance |
+/-0.3mm |
|
Process |
Hot rolled, Cold Drawn |
|
Length |
As customer's request |
|
Technology |
Hot roll, cold roll, cold drawn, ect. |
|
Edge |
Mill Edge Slit Edge |
|
Certifications |
MTC,ISO9001, BV,TUV |
|
Payment |
T/T,L/C,Western Union,Paypal,Apple Pay,Google Pay,D/A,D/P,MoneyGram |
|
Price Term |
Ex-work, FOB, CIF , CFR, etc |
|
Delivery time |
Usually 15 working days, your purchase volume determines our delivery time |
|
Sample |
Free,Contact us to learn more |
|
Packing |
Industry standard packaging or according to client's requirement |
Factory appearance and appearance
Shandong Yinghao Steel Co., Ltd. has tens of thousands of square meters of plant. The company has abundant capital, sufficient supply of goods and convenient transportation. The company adheres to the external market as the center, the internal management as the center, and takes the road of quality and efficiency development, and has achieved good economic and social benefits.
Company's products: stainless steel series, carbon steel series, aluminum series, galvanized, color coating, coil, seamless pipe, welded pipe, square pipe, round rod, profile, steel wire, steel strand and other products. Products sell well all over the country, and exported to the EU, the United States, Australia, Southeast Asia, the Middle East and other more than 50 countries, we can also customize products according to your requirements.
We have advanced processing equipment, such as automatic submerged arc welding machine, CNC cutting machine and other equipment, strict control of product quality. In line with the business principle of mutual benefit, we have won the trust of customers with professional service, quality products and competitive prices. We warmly welcome domestic and foreign customers to cooperate with us and achieve success together.
Welcome new and old customers to visit, negotiate, win-win cooperation!
Customer Photos
Our company's service concept is: Honesty, harmony and win-win,. We take customer satisfaction as the business philosophy. Customer’s encourage and support is our unremitting power. Wish we can get your more attention and cooperation.
Packing and delivery
Over the years since its establishment, the company has adhered to the tenet of "honoring contracts and keeping promises, customers first, reputation first, quality first", insisting on customer needs as the center, With the business philosophy of "reaching what customers want and thinking about what customers think", with the business principle of "one sales, small profits but quick turnover, genuine goods at a reasonable price, and timely supply", we handle steel pipes and profiles of various specifications and materials for our customers.For many years, the company has been established, adhering to the purpose of "respecting contract, keeping faith, customer first, reputation first, quality first", adhering to the customer demand as the center, to "achieve what customers think, think what customers think" business philosophy, to "one sale, small profit, real price, timely delivery" business principle, we manage all kinds of specifications and materials of steel pipe and profile for customers.
Application field
Highways, railway bridges, airports, long-span building beams, stadiums, mine support, LNG natural gas liquid storage tanks, wind power generation foundations, photovoltaic power generation brackets, offshore wind power platforms, foundation support, mountain support and other fields.
PARTNER
CERTIFICATE OF HONOR
The company's products cover stainless steel coil, stainless steel pipe, stainless steel bar and stainless steel profiles. The company has plasma cutting machine, coil flattening equipment, laser cutting machine, 8K mirror, frosted wire drawing, film and titanium plating equipment, which can be used for stainless steel material flattening, slitting, cutting plate, oil grinding wire drawing, whole roll oil film wire drawing, 8K mirror, titanium and other processing.
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Email ：sales4@yinghaometal.com
Phone : +86-19861402983
WhatsApp : +86-19861402983
Tel : +86-19861402983
Add : Fenghuang Industrial Park Dongchangfu District, Liaocheng City, Shandong Province
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