Grouted steel pipe is a pre-buried grouting pipe system typically used to permanently seal construction joints, cold joints, pipe seepage joints and gaps between concrete underground walls. It helps to enhance the compressive and seismic strength of pile foundations. It is very suitable to install grouting pipes between old and new concrete joints. Grouting requires the use of grouting devices, grouting pipe intermediates and grouting pipe headers, whose main function is to help pour concrete into the individual joints so that they can be completely sealed, thus preventing fracture, displacement and deformation, and better protecting the pile foundations and load-bearing materials.
Specification of Grouting Steel Pipe for Bridge Pile Foundation
Product Name | Steel Pipe Piles/Steel Pipe Poles/Grouting Steel Pipe/Geology Drilling Pipe/Sub-grade Pipe/Micro Pile Tube |
Standards | GB/T 9808-2008, API 5CT, ISO |
Grades | DZ40, DZ60, DZ80, R780, J55, K55, N80, L80, P110, 37Mn5, 36Mn2V, 13Cr, 30CrMo, A106 B, A53 B, ST52-4 |
Outside diameter | 60mm-178mm |
Thickness | 4.5-20mm |
Length | 1-12M |
Bending allowed | No more than 1.5mm/m |
Process Method | Beveling/Screening/Hole Drilling/Male Threading/Female Threading/Trapezoidal thread/Pointing |
Packing | Male and Female threading will be protected by plastic clothes or plastic caps Pointer pipe ends will be bare or as per client request. |
Application | Highway Construction/Metro Construction/Bridge Construction/Mountain Body Fastening Project /Tunnel Portal/Deep Foundation/Underpinning etc. |
Shipping term | In bulk ships for quantity above 100 tons, Below 100 tons order, will be loaded into containers, For an order below 5 tons, we usually choose LCL (Less than container load) container, to save the cost for client |
Shipping port | Qingdao port, or Tianjin port |
Trade term | CIF, CFR, FOB, EXW |
Paying term | 30%TT + 70% TT against copy of B/L, or 30%TT + 70% LC. |
Types of Grouting Steel Pipes
The grouting steel pipes are divided into disposable grouting pipes (CCLL-Y grouting pipe, QDM-IT grouting pipe, CCLL-Y full section grouting pipe) and repetitive grouting pipes (CCLL-D grouting pipe, CCLL-D full section grouting pipe). The one-time grouting pipe can only be grouted once and cannot be reused. The repetitive grouting pipe can be reused multiple times, and the core and outer wall of the pipe need to be washed clean after each use.
Advantages of Grouting Steel Pipes
Grouting steel pipes have good durability and wear resistance, and can be used for a long time. In addition, it also has good compressive strength and impact resistance, and can withstand great pressure. The steel grouting pipe also has good insulation and sound insulation performance, which can effectively protect the pipeline from the influence of external temperature.