1. Chemical anchors are usually made by fast curing of unsaturated resin; and adhesives are usually made of modified epoxy resin. Unsaturated resin planting rubber has great safety hazards to the structure. 2, the planting bar can match different specifications of the screw; and the chemical anchor ... read more
1 .anchor bolt production quality problems: Including (the anchor bolt material; hydrogen embrittlement, cracks, internal defects and other problems lead to fracture; the rod anti-corrosion coating does not meet the requirements of use leading to rust; the exposed part is not effectively anti-corros... read more
1. The planting rubber is divided into two types: injection type rubber and barrel rubber. It is drilled on concrete, wall rock and other substrates, then injected with rubber, and then inserted into steel or profile. Bonding the steel bar to the substrate is a common construction engineering techno... read more
1. Positioning Before the construction preparation, the design and construction drawings should be carefully read. The structural surface must be cleaned up. According to the design drawings, the drilling position of the steel anchorage points should be marked by the line. After the drilling positio... read more
1 . Convenient construction, short procurement cycle and simple process; 2 . Overcome the shortcomings of the strength of the foundation ring, sudden changes in stiffness, and easy brittle failure; 3 . The prestressed structure is safer and more reliable, and the concrete is under pressure for a lon... read more