Prestressed Horizontal Tensile Testing Machine 600KN Concrete Steel Strand Skew

Introduction

1. Adopting horizontal frame structure, hydraulic loading, digital display test parameters.
2. It is composed of loading frame, hydraulic pack, digital display system, safe protection system, functional parts, etc.
3. Adopting digital lower machine, connected with pressure sensor and to control the oil pump, steel strand is loaded by cross-core jack driven by oil pump.
4. According GB/T21839-2008 Testing Method for Prestressed Concrete Steel, hydraulic loading, sensor, mini-computer and data processing technology is adopted, it is mainly used in 20 degree skew axial tensile testing for prestressed steel strand (diameter of steel strand more than 12.5mm but less than 18mm) and determine the reduction coefficient of max. Load and skew tensile coefficient D.

Test Standards

→GB/T21839-2008 Steel for prestressed concrete-Test methods;

→ISO 15630-3:2002 Steel for the reinforcement and prestressing of concrete-Test methods--Part 3: Prestressing steel,MOD

→GB/T5224-2014 Steel strand for prestressed concrete;

(ISO 6934-4:1991 ,Steel for the prestressing of concrete--Part 4:Strand,NEQ)

→JIS G3536-2008 Steel wires and strands for prestressed concrete；

→ASTM A416/A416M-2010 Standard Specification for Steel Strand, Uncoated Seven-Wire for Prestressed Concrete；

→ASTM A882/A882M-2004a(2010) Standard Specification for Filled Epoxy-Coated Seven-Wire Prestressing Steel Strand；

→BS 5896-2012 High tensile steel wire and strand for the prestressing of concrete. Specification

Technical Specification