Strand Pc
Product Advantage:
Strand PC products are the preferred choice in the construction and engineering sectors for their outstanding performance and reliability.7 Wire PC Strand is made from seven strands of high-tensile steel wire, which provides high tensile strength and durability and is suitable for prestressed concrete structures.8 LRPC Strands (Low Relaxation Prestressing Strands) are treated with a special process that effectively reduces stress relaxation and ensures long-term stability for large-scale infrastructure projects. PC Wire Strand, with its precise diameter and consistent performance, offers efficient solutions for all types of prestressing applications, whether for bridges, high-rise buildings or industrial facilities. Whether for bridges, high-rise buildings or industrial facilities, Strand PC products are the ideal choice for modern projects, as they significantly improve structural safety and construction efficiency.
Product Description:
Strand PC is a high-strength prestressing steel strand which is widely used in concrete structures such as bridges, buildings, railroad ties, etc. to enhance load carrying capacity and durability. It is made of high quality high carbon steel and undergoes stringent cold drawing and heat treatment processes to ensure excellent tensile strength and fatigue resistance. LRPC Strands (Low Relaxation Prestressing Strands), an important category of Strand PC, are used in critical projects requiring long-term stability, such as large-span bridges and nuclear power plants, through a special stabilization process that significantly reduces long-term stress loss.
Strand PC products are characterized by high precision, toughness and corrosion resistance to meet the needs of different construction environments. Its standard specification includes 7-wire strand (7-Wire Strand), which is compact and has a strong bond to concrete, ensuring efficient force transfer. Whether used for precast beams, floor slabs or large-scale infrastructure, Strand PC provides excellent mechanical properties and ease of construction, helping projects achieve higher safety standards and economy, and is one of the core materials for modern prestressing technology.
Specification
Specification | |||||||||
model number | Nominal Diameter | tensile strength | cross-sectional area | Weight per meter | Maximum force on the entire strand | 0.2%yield force | Maximum force Total elongation | Stress relaxation properties | |
Initial load phase When dry real meta product Percentage of Power Number | 1000 hours Stress relaxation rate | ||||||||
D,/mm | Rm/MPa | S,/mm2 | g/m | Fm/kN | Fp₀₂/kN | A/% | %F ma | r/% | |
1*7 | 9.50 |
1860 | 54.8 | 430 | 102 | 89.8 |
3.5 |
70
80 |
2.5
4.5 |
12.70 | 98.7 | 775 | 184 | 162 | |||||
15.20 | 140 | 1101 | 260 | 229 | |||||
15.70 | 150 | 1178 | 279 | 246 | |||||
17.80 | 191 | 1500 | 355 | 311 | |||||
18.90 | 220 | 1727 | 409 | 360 | |||||
21.60 | 285 | 2237 | 530 | 466 | |||||
1*7 | 9.50 |
1960 | 54.8 | 430 | 107 | 94.2 | |||
12.70 | 98.7 | 775 | 193 | 170 | |||||
15.20 | 140 | 1101 | 274 | 241 | |||||
1*71 | 12.7 | 1860 | 98.7 | 775 | 184 | 162 | |||
15.20 | 140 | 1101 | 260 | 229 | |||||
1*19S (1+9+9) |
21.80 |
1860 |
313 |
2482 |
583 |
513 | |||
1*19W (1+6+6/6) |
28.60 |
1860 |
532 |
4229 |
990 |
854 | |||
Product Details:
Mining anchor cable structure generally consists of amplitude anchor head, anchor cable body and outer anchor head three parts together. The inner anchor head, also called anchor section or anchor root, is the root of the anchor cable anchored in the rock body to provide prestressing, according to its structural form is divided into two categories: mechanical and cemented, and cemented is divided into two categories: mortar cemented and resin cemented, and the mortar is divided into the secondary grouting and primary grouting. External anchor head, also known as external anchorage section, is the anchor cable to provide tension tonnage and locking parts, its types of anchor plug type, threaded, reinforced concrete cylinder anchor pier type, pier head anchor type and steel frame type. Mining anchor cable is composed of steel strand, anchoring agent, tray, anchorage and other anchoring accessories, can be mechanically tensioned, the surrounding rock to exert active pressure of a device.
Structural features:
The anchor is drilled through the weak rock layer or sliding surface, anchored at one end in the hard rock layer, and then anchored at the other end in the hard rock layer, and then anchored at the other end in the hard rock layer.
The other free end is then tensioned to exert pressure on the rock layer to anchor the unstable rock. Anchor: According to the anchoring method, the anchor should be anchored in the hard rock layer.
Structural features:
The anchor is drilled through the weak rock layer or sliding surface, anchored at one end in the hard rock layer, and then anchored at the other end in the hard rock layer, and then anchored at the other end in the hard rock layer.
The other free end is then tensioned to exert pressure on the rock layer to anchor the unstable rock. Anchor: According to the anchoring method, the anchor should be anchored in the hard rock layer.
How to use:
Drill a suitable hole according to the diameter and length of the anchor cable, remove the debris in the hole, put in the resin anchoring agent (the type and quantity of the resin anchoring agent is determined according to the design), push the resin anchoring agent to the bottom of the hole with the anchor cable, connect the end of the anchor cable with the connector of the anchor drilling rig, start the anchor drilling rig and stir the resin anchoring agent in accordance with the stipulated stirring time, and so on, when it is solidified, put on the pallets and anchorage, and pull it to the stipulated preload with the tensioner. After solidification, put on the pallet and anchorage, and use tensioner to pull it to the specified preload force.
