Thread rebar bolt

A thread rebar bolt, also known as a threaded rebar bolt or simply a threaded bolt, is a type of fastener commonly used in construction, civil engineering, and mining applications. It is designed to provide structural reinforcement by anchoring into various substrates, such as concrete, rock, or soil.

In mining applications, thread rebar bolts are often used to reinforce rock formations in underground mines, tunnels, and shafts. They help prevent roof collapses, stabilize rock walls, and mitigate the risk of rockfalls, ensuring the safety of workers and equipment.

right and left-screwing full thread steel rebar rock bolt — full thread steel rebar rock bolt

Specifications of thread rebar bolt

TEMNO.	DIA.	MASS	YIELD STRENGTH≥335MPa			YIELD STRENGTH≥500MPa			YIELD STRENGTH≥890MPa
TEMNO.	(mm)	(kgs/m)	YIELD (kN)	TENSILE (kN)	ELONGATION	YIELD (kN)	TENSILE (kN)	ELONGATION	YIELD (kN)	TENSILE (kN)	ELONGATION
16	16	1.5	≥67	≥97	≥17%	≥100	≥135	≥15%	≥178	≥231	≥9%
18	18	1.9	≥85	≥123	≥17%	≥127	≥171	≥15%	≥226	≥293	≥9%
20	20	2.4	≥105	≥152	≥17%	≥157	≥211	≥15%	≥280	≥364	≥9%
22	22	2.9	≥126	≥182	≥17%	≥189	≥255	≥15%	≥337	≥438	≥9%

Application of thread rebar bolt

The application of thread rebar bolts is diverse and spans across multiple industries, with significant utilization in construction, civil engineering, and mining sectors. Here are some specific applications of thread rebar bolts:

1. Mining Support and Ground Control:

In underground mining operations, thread rebar bolts are extensively used for ground support and stabilization. They are installed in rock formations to prevent roof collapses, stabilize tunnel walls, and mitigate the risk of rockfalls.
Thread rebar bolts provide an effective means of reinforcing rock structures, ensuring the safety of miners and equipment in underground environments with varying geological conditions.

2. Tunneling and Underground Construction:

Thread rebar bolts play a crucial role in tunneling and underground construction projects. They are used to reinforce tunnel walls, secure rock formations, and provide structural support in excavated areas.
In tunneling applications, thread rebar bolts help maintain stability during excavation and prevent ground movement or collapse, ensuring the integrity of underground structures and transportation networks.

3. Slope Stabilization and Retaining Walls:

Thread rebar bolts are employed in slope stabilization projects to reinforce natural slopes or man-made embankments. They are installed horizontally or at an angle to anchor retaining structures and prevent soil erosion or landslides.
In the construction of retaining walls, thread rebar bolts are used to secure wall panels, tieback anchors, and other structural elements, ensuring stability and longevity of the retaining system.

4. Structural Reinforcement in Building Construction:

Thread rebar bolts are utilized in building construction for structural reinforcement purposes. They are embedded in concrete or masonry to connect structural components, anchor facades, and secure building elements such as steel beams, columns, and precast panels.
In seismic retrofitting projects, thread rebar bolts are installed to strengthen existing structures and improve their resistance to seismic forces, enhancing the safety and resilience of buildings in earthquake-prone regions.

5. Infrastructure Rehabilitation and Repair:

Thread rebar bolts are used in infrastructure rehabilitation and repair projects to strengthen aging or deteriorating structures. They are employed to retrofit bridges, viaducts, dams, and other critical infrastructure assets, extending their service life and enhancing performance.
Thread rebar bolts can be installed externally or internally to reinforce concrete elements, repair cracks, and restore structural integrity, providing cost-effective solutions for infrastructure maintenance and asset management.